Frost Advisory
Ends in 2 h 37 min
When
Until 10 AM PDT Saturday.
Where
In Oregon, Tualatin Valley, Central Oregon Coast Range, and Central Oregon Coast Range Lowlands. In Washington, Cowlitz County Lowlands, North Clark County Lowlands, South Washington Cascade Foothills, and Willapa Hills.
Issued for this forecast zone · National Weather Service Portland OR
What, impacts and precautionsHide details
What
Temperatures of 33 to 36 degrees will result in frost formation.
Impacts
Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.
Precautionary actions
Take steps now to protect tender outdoor plants from the cold. Consider temporarily moving outdoor potted plants indoors if they are sensitive to cold temperatures, or temporarily covering sensitive plants with a lightweight cotton fabric (i.e., bedsheets, thin blankets), as this will help retain heat and provide frost protection for your plants.
Areas: Clatsop County Coast; Tillamook County Coast; Central Coast of Oregon; Central Oregon Coast Range Lowlands; Central Oregon Coast Range; Lower Columbia River; Tualatin Valley; Inner Portland Metro; East Portland Metro; Outer Southeast Portland Metro; West Columbia River Gorge of Oregon above 500 ft; Clackamas County Cascade Foothills; Willapa Hills; Cowlitz County Lowlands; North Clark County Lowlands; Inner Vancouver Metro; East Clark County Lowlands; South Washington Cascade Foothills
See it on weather.gov (opens in a new tab)

Observed 7:00 AM PDT at KHIO

Garden Home-Whitford, OR weather

Foggy and 30°−1°.

Mostly agree

Now 30°−1°

Fog

Wind: Calm; Light through 7 PM
Dew point: 28°−2°; Dry · up to 38°3° by 8 AM (comfortable)
Humidity: 93%; Air 30°−1°, dew point 28°−2° · frost likely
UV index: 0Low; Moderate 12–3 PM · peak 3
Air quality: 38Good; Main pollutant: PM2.5 (fine particles)
Pressure: 30.25 inHg1024 hPa; Falling slowly · −0.03 inHg−1.2 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

4°2° cooler than this time yesterday (33°1° then, 29°−2° now)

Good hours for

Dry until tomorrow 5 AM
Fog until 10 AM
Above 50°10° today by noon
Below 50°10° tonight after 9 PM
Rain tomorrow from 5 AM (80%, 2.2 in57 mm)

This morningUp to 48°9° by 11 AM · Mostly cloudy
This afternoonUp to 61°16° by 4 PM · Mostly cloudy
TonightDown to 43°6° by 3 AM · Rain 5–6 AM (30%)
Tomorrow morningUp to 51°11° by 11 AM · Rain all morning (40%)
Tomorrow afternoonUp to 59°15° by 4 PM · Rain all afternoon (80%)
Tomorrow nightDown to 48°9° by 5 AM · Rain all night (80%)

Hourly forecast, next 48 hours, in the place's local time
Hour	Conditions	Temperature	Feels like	Precipitation	Wind	Humidity	Cloud cover	UV index
Sat 7a	Fog	39°4° (likely 36°2° to 39°4°)	39°4°	0%	0 mph0 km/h, gusts 2 mph4 km/h	97%	72%	0
Sat 8a	Fog	39°4° (likely 36°2° to 39°4°)	39°4°	0%	0 mph0 km/h, gusts 3 mph5 km/h	98%	83%	0
Sat 9a	Fog	41°5° (likely 38°3° to 41°5°)	41°5°	0%	0 mph0 km/h, gusts 2 mph3 km/h	97%	81%	0
Sat 10a	Cloudy	45°7° (likely 42°6° to 45°7°)	45°7°	0%	0 mph0 km/h, gusts 3 mph5 km/h	94%	88%	1
Sat 11a	Cloudy	48°9° (likely 47°8° to 50°10°)	48°9°	0%	1 mph2 km/h from NNE, gusts 5 mph8 km/h	85%	80%	2
Sat 12p	Partly sunny	52°11° (likely 50°10° to 54°12°)	52°11°	0%	0 mph0 km/h, gusts 5 mph8 km/h	72%	72%	3
Sat 1p	Cloudy	56°13° (likely 52°11° to 56°13°)	56°13°	0%	0 mph0 km/h, gusts 2 mph4 km/h	63%	81%	3
Sat 2p	Cloudy	59°15° (likely 55°13° to 59°15°)	59°15°	0%	0 mph0 km/h, gusts 3 mph4 km/h	57%	81%	3
Sat 3p	Cloudy	59°15° (likely 56°13° to 60°16°)	59°15°	0%	0 mph0 km/h, gusts 3 mph4 km/h	52%	81%	2
Sat 4p	Cloudy	61°16° (likely 56°13° to 61°16°)	61°16°	0%	0 mph0 km/h, gusts 3 mph5 km/h	51%	82%	2
Sat 5p	Cloudy	59°15° (likely 55°13° to 59°15°)	59°15°	0%	0 mph0 km/h, gusts 4 mph6 km/h	54%	82%	1
Sat 6p	Cloudy	57°14° (likely 52°11° to 57°14°)	57°14°	0%	0 mph0 km/h, gusts 5 mph8 km/h	56%	82%	0
Sat 7p	Cloudy	55°13° (likely 50°10° to 55°13°)	55°13°	0%	0 mph0 km/h, gusts 5 mph7 km/h	63%	82%	0
Sat 8p	Cloudy	51°11° (likely 48°9° to 51°11°)	51°11°	0%	0 mph0 km/h, gusts 5 mph7 km/h	67%	81%	0
Sat 9p	Cloudy	49°9° (likely 47°8° to 51°11°)	49°9°	0%	0 mph0 km/h, gusts 4 mph7 km/h	70%	81%	0
Sat 10p	Cloudy	48°9° (likely 46°8° to 49°9°)	48°9°	5%	0 mph0 km/h, gusts 5 mph7 km/h	74%	81%	0
Sat 11p	Cloudy	47°8° (likely 45°7° to 48°9°)	47°8°	5%	0 mph0 km/h, gusts 5 mph9 km/h	77%	80%	0
Sun 12a	Cloudy	46°8° (likely 44°7° to 48°9°)	46°8°	5%	0 mph0 km/h, gusts 6 mph10 km/h	79%	77%	0
Sun 1a	Cloudy	45°7° (likely 43°6° to 47°8°)	45°7°	5%	0 mph0 km/h, gusts 8 mph12 km/h	81%	73%	0
Sun 2a	Cloudy	44°7° (likely 41°5° to 45°7°)	44°7°	5%	0 mph0 km/h, gusts 9 mph15 km/h	82%	70%	0
Sun 3a	Cloudy	43°6° (likely 41°5° to 45°7°)	43°6°	5%	0 mph0 km/h, gusts 9 mph15 km/h	83%	68%	0
Sun 4a	Cloudy	43°6° (likely 41°5° to 44°7°)	43°6°	5%	0 mph0 km/h, gusts 8 mph14 km/h	83%	74%	0
Sun 5a	Cloudy	43°6° (likely 41°5° to 44°7°)	43°6°	30%, 0.05 in1.3 mm	1 mph2 km/h from S, gusts 9 mph15 km/h	83%	76%	0
Sun 6a	Rain	42°6° (likely 40°4° to 45°7°)	42°6°	40%, 0.05 in1.3 mm	1 mph2 km/h from S, gusts 9 mph14 km/h	83%	58%	0
Sun 7a	Rain	43°6° (likely 39°4° to 46°8°)	43°6°	30%, 0.05 in1.3 mm	1 mph2 km/h from S, gusts 10 mph15 km/h	83%	60%	0
Sun 8a	Rain	43°6° (likely 40°4° to 47°8°)	43°6°	30%, 0.05 in1.3 mm	1 mph2 km/h from S, gusts 11 mph18 km/h	85%	77%	0
Sun 9a	Rain	44°7° (likely 43°6° to 48°9°)	44°7°	30%, 0.05 in1.3 mm	1 mph2 km/h from S, gusts 14 mph22 km/h	86%	95%	0
Sun 10a	Rain	48°9° (likely 46°8° to 48°9°)	48°9°	40%, 0.05 in1.3 mm	1 mph2 km/h from S, gusts 11 mph18 km/h	85%	99%	1
Sun 11a	Rain	51°11° (likely 47°8° to 51°11°)	51°11°	30%, 0.2 in5.1 mm	2 mph3 km/h from SSE, gusts 11 mph18 km/h	80%	100%	2
Sun 12p	Rain	54°12° (likely 46°8° to 54°12°)	54°12°	50%, 0.2 in5.1 mm	2 mph3 km/h from SSE, gusts 13 mph21 km/h	76%	100%	2
Sun 1p	Rain	56°13° (likely 47°8° to 56°13°)	56°13°	70%, 0.2 in5.1 mm	2 mph3 km/h from SSE, gusts 15 mph24 km/h	74%	100%	3
Sun 2p	Rain	57°14° (likely 48°9° to 57°14°)	57°14°	70%, 0.2 in5.1 mm	2 mph3 km/h from SE, gusts 15 mph25 km/h	73%	100%	3
Sun 3p	Rain	58°14° (likely 48°9° to 58°14°)	58°14°	80%, 0.2 in5.1 mm	2 mph3 km/h from SE, gusts 16 mph26 km/h	71%	98%	3
Sun 4p	Rain	59°15° (likely 49°9° to 59°15°)	59°15°	70%, 0.2 in5.1 mm	2 mph3 km/h from SE, gusts 16 mph25 km/h	72%	97%	2
Sun 5p	Rain	57°14° (likely 50°10° to 57°14°)	57°14°	60%, 0.06 in1.5 mm	2 mph3 km/h from SSE, gusts 16 mph25 km/h	77%	95%	1
Sun 6p	Cloudy	56°13° (likely 50°10° to 56°13°)	56°13°	60%, 0.06 in1.5 mm	2 mph3 km/h from SSE, gusts 13 mph21 km/h	76%	93%	0
Sun 7p	Cloudy	55°13° (likely 50°10° to 55°13°)	55°13°	60%, 0.06 in1.5 mm	2 mph3 km/h from SSE, gusts 16 mph26 km/h	78%	89%	0
Sun 8p	Rain	53°12° (likely 49°9° to 53°12°)	53°12°	60%, 0.06 in1.5 mm	1 mph2 km/h from SSE, gusts 17 mph27 km/h	82%	88%	0
Sun 9p	Cloudy	52°11° (likely 49°9° to 52°11°)	52°11°	60%, 0.06 in1.5 mm	1 mph2 km/h from SSE, gusts 16 mph26 km/h	83%	76%	0
Sun 10p	Rain	52°11° (likely 49°9° to 52°11°)	52°11°	60%, 0.06 in1.5 mm	1 mph2 km/h from SSE, gusts 15 mph25 km/h	84%	81%	0
Sun 11p	Drizzle	51°11° (likely 49°9° to 51°11°)	51°11°	80%, 0.05 in1.3 mm	2 mph3 km/h from SSE, gusts 18 mph28 km/h	84%	82%	0
Mon 12a	Rain	51°11° (likely 49°9° to 51°11°)	51°11°	80%, 0.05 in1.3 mm	2 mph3 km/h from SSE, gusts 18 mph29 km/h	84%	79%	0
Mon 1a	Rain	50°10° (likely 49°9° to 51°11°)	50°10°	80%, 0.05 in1.3 mm	2 mph3 km/h from SSE, gusts 15 mph24 km/h	85%	86%	0
Mon 2a	Rain	50°10° (likely 49°9° to 51°11°)	48°9°	80%, 0.05 in1.3 mm	5 mph8 km/h from SSE, gusts 17 mph28 km/h	85%	96%	0
Mon 3a	Rain	49°9° (likely 49°9° to 51°11°)	47°8°	80%, 0.05 in1.3 mm	5 mph8 km/h from SSE, gusts 16 mph25 km/h	85%	82%	0
Mon 4a	Drizzle	49°9° (likely 48°9° to 51°11°)	47°8°	80%, 0.05 in1.3 mm	5 mph8 km/h from SSE, gusts 14 mph23 km/h	86%	91%	0
Mon 5a	Drizzle	48°9° (likely 48°9° to 51°11°)	48°9°	80%, 0.04 in1 mm	2 mph3 km/h from SSE, gusts 13 mph21 km/h	86%	98%	0
Mon 6a	Rain	48°9° (likely 47°8° to 52°11°)	48°9°	80%, 0.04 in1 mm	2 mph3 km/h from SSE, gusts 9 mph15 km/h	87%	99%	0

Days ahead

Shaded: typical range for these dates (1991–2020)

Today, Oct 24. Fog. High 61°16°, low 41°5°. Typical 59°15° / 46°8°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Fog, 39°4°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 61°16°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 51°11°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 43°6°
  30% chance · 0.05 in1.3 mm
Official NWS forecast
Today: Patchy fog before 10am. Partly sunny. High near 61, with temperatures falling to around 59 in the afternoon. East wind around 1 mph.
Tonight: A chance of rain after 5am. Mostly cloudy. Low around 41, with temperatures rising to around 43 overnight. South southeast wind around 1 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
56°13°–61°16°
Low, likely
36°2°–41°5°
Typical high / low
59°15° / 46°8°
Wind
5 mph8 km/h
UV peak
3
Tomorrow, Oct 25. Rain. High 60°16°, low 46°8°. Typical 59°15° / 46°8°. Rain 0.56 in14 mm, 80% chance. Mostly agree.
1. Morning
  6 AM–noon
  Rain, 43°6°
  40% chance · 0.45 in11 mm
2. Afternoon
  noon–6 PM
  Rain, 59°15°
  80% chance · 1.1 in27 mm
3. Evening
  6 PM–midnight
  Rain, 53°12°
  80% chance · 0.35 in8.9 mm
4. Overnight
  midnight–6 AM
  Rain, 48°9°
  80% chance · 0.29 in7.4 mm
Official NWS forecast
Day: Rain. Mostly cloudy. High near 60, with temperatures falling to around 57 in the afternoon. South southeast wind around 2 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Night: Rain. Mostly cloudy, with a low around 46. South southeast wind 1 to 5 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
50°10°–60°16°
Low, likely
39°4°–46°8°
Typical high / low
59°15° / 46°8°
Wind
11 mph18 km/h, gusts 26 mph42 km/h
UV peak
3
Monday, Oct 26. Rain. High 60°16°, low 45°7°. Typical 59°15° / 45°7°. Rain 0.35 in8.9 mm, 80% chance. Mostly agree.
1. Morning
  6 AM–noon
  Rain, 49°9°
  80% chance · 0.14 in3.5 mm
2. Afternoon
  noon–6 PM
  Drizzle, 58°14°
  80% chance · 0.11 in2.9 mm
3. Evening
  6 PM–midnight
  Drizzle, 52°11°
  50% chance · 0.03 in0.7 mm
4. Overnight
  midnight–6 AM
  Drizzle, 48°9°
  30% chance · 0.03 in0.7 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: Rain. Mostly cloudy, with a high near 60. South wind around 3 mph. Chance of precipitation is 80%. New rainfall amounts less than a tenth of an inch possible.
Night: A chance of rain before 4am, then a chance of rain and patchy fog. Mostly cloudy, with a low around 45. Chance of precipitation is 50%.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
55°13°–60°16°
Low, likely
45°7°–50°10°
Typical high / low
59°15° / 45°7°
Wind
11 mph17 km/h, gusts 24 mph39 km/h
UV peak
3
Tuesday, Oct 27. Rain. High 61°16°, low 44°7°. Typical 58°14° / 45°7°. Rain 0.17 in4.3 mm, 20% chance. Forecasts agree.
1. Morning
  6 AM–noon
  Drizzle, 48°9°
  30% chance · 0.05 in1.3 mm
2. Afternoon
  noon–6 PM
  Drizzle, 55°13°
  30% chance · 0.05 in1.1 mm
3. Evening
  6 PM–midnight
  Drizzle, 50°10°
  30% chance · 0.03 in0.8 mm
4. Overnight
  midnight–6 AM
  Drizzle, 46°8°
  50% chance · 0.08 in1.9 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: Areas of fog before 11am, then patchy fog and a slight chance of rain. Mostly cloudy, with a high near 61.
Night: A chance of rain. Mostly cloudy, with a low around 44.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
54°12°–61°16°
Low, likely
44°7°–49°9°
Typical high / low
58°14° / 45°7°
Wind
10 mph16 km/h, gusts 21 mph34 km/h
UV peak
2
Wednesday, Oct 28. Rain. High 60°16°, low 42°6°. Typical 58°14° / 45°7°. Rain 0.24 in6.1 mm, 50% chance. Mostly agree.
1. Morning
  6 AM–noon
  Drizzle, 46°8°
  50% chance · 0.06 in1.6 mm
2. Afternoon
  noon–6 PM
  Rain, 52°11°
  60% chance · 0.07 in1.9 mm
3. Evening
  6 PM–midnight
  Drizzle, 47°8°
  50% chance · 0.01 in0.3 mm
4. Overnight
  midnight–6 AM
  Drizzle, 43°6°
  40% chance · 0.03 in0.8 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain. Mostly cloudy, with a high near 60.
Night: A chance of rain. Mostly cloudy, with a low around 42.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
51°11°–60°16°
Low, likely
42°6°–45°7°
Typical high / low
58°14° / 45°7°
Wind
12 mph19 km/h, gusts 27 mph43 km/h
UV peak
2
Thursday, Oct 29. Rain. High 59°15°, low 40°4°. Typical 58°14° / 45°7°. Rain 0.25 in6.4 mm, 40% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 42°6°
  40% chance · 0.05 in1.3 mm
2. Afternoon
  noon–6 PM
  Drizzle, 52°11°
  50% chance · 0.1 in2.5 mm
3. Evening
  6 PM–midnight
  Drizzle, 47°8°
  40% chance · 0.06 in1.4 mm
4. Overnight
  midnight–6 AM
  Drizzle, 44°7°
  20% chance · 0.14 in3.5 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain. Partly sunny, with a high near 59.
Night: A slight chance of rain before 11pm. Mostly cloudy, with a low around 40.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
49°9°–59°15°
Low, likely
40°4°–44°7°
Typical high / low
58°14° / 45°7°
Wind
9 mph15 km/h, gusts 24 mph38 km/h
UV peak
3
Friday, Oct 30. Rain. High 59°15°, low 39°4°. Typical 57°14° / 45°7°. Rain 0.19 in4.8 mm, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 44°6°
  Dry
2. Afternoon
  noon–6 PM
  Drizzle, 51°10°
  20% chance · 0.03 in0.8 mm
3. Evening
  6 PM–midnight
  Partly cloudy, 45°7°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 40°5°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of rain between 11am and 5pm. Mostly sunny, with a high near 59.
Night: Partly cloudy, with a low around 39.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
48°9°–59°15°
Low, likely
39°4°–43°6°
Typical high / low
57°14° / 45°7°
Wind
8 mph12 km/h, gusts 19 mph30 km/h
UV peak
2
Saturday, Oct 31. Cloudy. High 50°10°, low 38°3°. Typical 57°14° / 44°7°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 40°4°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 50°10°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 44°7°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 39°4°
  Dry
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
48°9°–54°12°
Low, likely
35°2°–40°4°
Typical high / low
57°14° / 44°7°
Wind
6 mph9 km/h
UV peak
3
Sunday, Nov 1. Cloudy. High 53°12°, low 39°4°. Typical 57°14° / 44°7°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 40°4°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 52°11°
  Dry
3. Evening
  6 PM–midnight
  Clear, 48°9°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 41°5°
  Dry
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
48°9°–58°14°
Low, likely
30°−1°–48°9°
Typical high / low
57°14° / 44°7°
Wind
7 mph10 km/h
UV peak
2
Monday, Nov 2. Cloudy. High 55°13°, low 42°6°. Typical 56°13° / 44°7°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 43°6°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 55°13°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 49°10°
  Dry
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
49°9°–62°17°
Low, likely
38°3°–46°8°
Typical high / low
56°13° / 44°7°
Wind
8 mph13 km/h, gusts 19 mph30 km/h
UV peak
3

10 days15 days30 days

The outlook

Today
Dry, high 61°, low 41°.
Tomorrow
77% chance of rain, high 60°, low 46°.
Monday
77% chance of rain, high 60°, low 45°.
Rest of week
Highs 50–61°; chance of precipitation on Wednesday.

Want the meteorologists’ reasoning? Read the NWS forecast discussion (PQR) (opens in a new tab)

What changed since yesterday

No meaningful changes from yesterday’s forecast.

Radar

Radar data: NOAA MRMS, rendered by forecast.blue

Radar loads when scrolled into view

Full-screen radar

Rivers

NOAA river gauges within 25 mi

Willamette River at Portland

5.8 mi

Below flood stage

Level: 3.2 ft

Forecast peak 5.7 ft Wed 7 PM

Reading from Sat 6:05 AM · NWS gauge page

Tualatin River at West Linn

8.8 mi

Below flood stage

Level: 2.9 ft
Flow: 204 cfs

Forecast peak 3.1 ft Mon 11 AM

Reading from Sat 6:10 AM · NWS gauge page

Tualatin River at Farmington

9.2 mi

Below flood stage

Level: 4.1 ft
Flow: 167 cfs

Forecast peak 4.2 ft Thu 5 AM

Reading from Sat 5:30 AM · NWS gauge page

Willamette River below Falls at Oregon City

10 mi

Below flood stage

Level: 5.2 ft

Forecast peak 7.2 ft Wed 7 PM

Reading from Sat 5:15 AM · NWS gauge page

For your home

What this week’s weather means for heating, cooling, pipes and fresh air.

Heating this week

About 69% less heating than a typical week.

This week 29Typical 93

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 14
h below 17°F: 0
h below 5°F: 0

47, 17 and 5°F are the test points heat pumps are rated at. About 3 hours are near freezing and damp, when outdoor units defrost more often.

Comfort

Dry air outside (dew point 28°F). Indoor air will run dry too — a humidifier keeping indoor relative humidity in the 30–50% range is more comfortable and cuts static shocks, without going so high it fogs cold windows.

Open the windows?

No stretch in the next few days is comfortable enough outside, by temperature, dew point and air quality.

Is this typical?

Portland Kgw-Tv · official normals 1991–2020 · records 1874–2026

Oct 24, today vs a typical year

Today’s expected high is 2°1° warmer than typical.

Last 7 days vs normal

On average 3°2° warmer than normal (daily mean temperature).

+1°±0°SunOct 18
+3°+2°MonOct 19
+7°+4°TueOct 20
+6°+3°WedOct 21
+4°+2°ThuOct 22
±0°FriOct 23
—SatOct 24

Garden Home-Whitford weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Daylight: 10 h 30 min; Losing 3 min 3 s a day; shortest Dec 21, 1 h 48 min less
Golden hour: 5:28–6:28 PM; Morning 7:21–8:21 AM
Blue hour: 6:28–6:40 PM; Morning 7:09–7:21 AM; first light 7:09 AM

Stars tonight? Poor

Clouds most of the night (about 74% cover).

Moon

Waxing gibbous

97% lit · growing

Today: sets 5:57 AM · rises 5:11 PM
Full moon: Oct 25
New moon: Nov 8

Looking east from Garden Home-Whitford. The highest point on the skyline is about 10,700 ft, 52 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.

1 active weather alert

Frost Advisory

Garden Home-Whitford, OR weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Monday

Rest of week

What changed since yesterday

Radar

Rivers

Willamette River at Portland

Tualatin River at West Linn

Tualatin River at Farmington

Willamette River below Falls at Oregon City

For your home

Heating this week

Heat-pump hours, next 7 days

Comfort

Open the windows?

Is this typical?

Oct 24, today vs a typical year

Last 7 days vs normal

Sun & moon

Sun

Stars tonight? Poor

Moon