Freeze Warning
Ends in 6 h 48 min
When
From 11 PM this evening to 10 AM PDT Saturday.
Where
Eastern Columbia River Gorge of Oregon and Washington, Lower Columbia Basin of Oregon and Washington, Foothills of the Northern Blue Mountains of Oregon, Yakima Valley, and Foothills of the Blue Mountains of Washington.
Issued for this forecast zone · National Weather Service Pendleton OR
What, impacts and precautionsHide details
What
Sub-freezing temperatures of 25 to 32 expected.
Impacts
Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.
Precautionary actions
Take steps now to protect tender plants from the cold.
Areas: Eastern Columbia River Gorge of Oregon; Lower Columbia Basin of Oregon; Foothills of the Northern Blue Mountains of Oregon; Eastern Columbia River Gorge of Washington; Yakima Valley; Lower Columbia Basin of Washington; Foothills of the Blue Mountains of Washington
See it on weather.gov (opens in a new tab)

Observed 2:10 AM PDT at KPSC

West Pasco, WA weather

Freeze Warning. 37°3° and clear now.

Mostly agree

Now 37°3°

Clear

Wind: Calm; Light through 3 PM
Dew point: 36°2°; Comfortable
Humidity: 93%; Air 37°3°, dew point 36°2° · fog or dew likely
UV index: 0Low; Moderate 12–3 PM · peak 3
Air quality: 26Good; Main pollutant: PM2.5 (fine particles)
Pressure: 30.3 inHg1026 hPa; Steady over the last 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

Good hours for

Fog today 4–10 AM
Low 34°1° today at 7 AM
Above 50°10° today by noon
High 58°14° today at 5 PM
Below 50°10° tonight after 9 PM

TonightNear 36°2° · Clear
This morningUp to 47°8° by 11 AM · Mostly cloudy
This afternoonUp to 58°14° by 5 PM · Mostly cloudy
TonightDown to 37°3° by 4 AM · Mostly cloudy
Tomorrow morningUp to 47°8° by 11 AM · Mostly cloudy
Tomorrow afternoonUp to 57°14° by 4 PM · Mostly cloudy
Tomorrow nightDown to 42°6° by 2 AM · Mostly cloudy

Hourly forecast, next 48 hours, in the place's local time
Hour	Conditions	Temperature	Feels like	Precipitation	Wind	Humidity	Cloud cover	UV index
Sat 3a	Clear	37°3° (likely 37°3° to 43°6°)	37°3°	0%	1 mph2 km/h from NE, gusts 4 mph6 km/h	99%	0%	0
Sat 4a	Fog	36°2° (likely 36°2° to 43°6°)	36°2°	0%	1 mph2 km/h from NE, gusts 4 mph6 km/h	99%	23%	0
Sat 5a	Fog	35°2° (likely 35°2° to 42°6°)	35°2°	0%	1 mph2 km/h from NE, gusts 4 mph7 km/h	99%	51%	0
Sat 6a	Fog	36°2° (likely 36°2° to 41°5°)	36°2°	0%	1 mph2 km/h from NE, gusts 4 mph6 km/h	95%	54%	0
Sat 7a	Fog	34°1° (likely 34°1° to 40°4°)	34°1°	0%	1 mph2 km/h from NE, gusts 3 mph5 km/h	96%	59%	0
Sat 8a	Fog	35°2° (likely 35°2° to 40°4°)	35°2°	0%	1 mph2 km/h from E, gusts 3 mph4 km/h	99%	60%	0
Sat 9a	Fog	38°3° (likely 38°3° to 44°7°)	38°3°	0%	1 mph2 km/h from NE, gusts 3 mph4 km/h	93%	67%	1
Sat 10a	Cloudy	43°6° (likely 43°6° to 48°9°)	43°6°	0%	1 mph2 km/h from E, gusts 3 mph5 km/h	85%	75%	1
Sat 11a	Cloudy	47°8° (likely 47°8° to 52°11°)	47°8°	0%	1 mph2 km/h from NE, gusts 4 mph6 km/h	74%	77%	2
Sat 12p	Cloudy	50°10° (likely 50°10° to 56°13°)	50°10°	0%	1 mph2 km/h from NE, gusts 4 mph7 km/h	67%	77%	3
Sat 1p	Partly sunny	53°12° (likely 53°12° to 59°15°)	53°12°	0%	2 mph3 km/h from N, gusts 4 mph6 km/h	60%	58%	3
Sat 2p	Partly sunny	56°13° (likely 56°13° to 60°16°)	56°13°	0%	2 mph3 km/h from NE, gusts 4 mph7 km/h	56%	43%	3
Sat 3p	Partly sunny	57°14° (likely 57°14° to 62°17°)	57°14°	0%	3 mph5 km/h from NE, gusts 4 mph7 km/h	52%	51%	2
Sat 4p	Cloudy	57°14° (likely 57°14° to 62°17°)	57°14°	0%	3 mph5 km/h from E, gusts 5 mph8 km/h	49%	80%	2
Sat 5p	Cloudy	58°14° (likely 58°14° to 60°16°)	58°14°	0%	3 mph5 km/h from NE, gusts 6 mph9 km/h	52%	61%	1
Sat 6p	Cloudy	55°13° (likely 54°12° to 56°13°)	55°13°	0%	2 mph3 km/h from NE, gusts 5 mph8 km/h	56%	66%	0
Sat 7p	Cloudy	52°11° (likely 51°11° to 53°12°)	52°11°	0%	2 mph3 km/h from N, gusts 4 mph7 km/h	64%	63%	0
Sat 8p	Partly cloudy	50°10° (likely 48°9° to 51°11°)	50°10°	0%	2 mph3 km/h from N, gusts 3 mph5 km/h	70%	58%	0
Sat 9p	Cloudy	45°7° (likely 45°7° to 49°9°)	45°7°	0%	2 mph3 km/h from NW, gusts 3 mph5 km/h	75%	77%	0
Sat 10p	Cloudy	44°7° (likely 44°7° to 48°9°)	44°7°	0%	2 mph3 km/h from NW, gusts 3 mph5 km/h	78%	79%	0
Sat 11p	Cloudy	42°6° (likely 42°6° to 47°8°)	42°6°	0%	2 mph3 km/h from NW, gusts 4 mph6 km/h	83%	81%	0
Sun 12a	Cloudy	42°6° (likely 42°6° to 46°8°)	42°6°	0%	2 mph3 km/h from NW, gusts 4 mph6 km/h	80%	80%	0
Sun 1a	Cloudy	41°5° (likely 41°5° to 45°7°)	41°5°	0%	2 mph3 km/h from W, gusts 4 mph6 km/h	82%	79%	0
Sun 2a	Cloudy	40°4° (likely 40°4° to 44°7°)	40°4°	0%	2 mph3 km/h from W, gusts 4 mph7 km/h	85%	78%	0
Sun 3a	Cloudy	39°4° (likely 39°4° to 43°6°)	39°4°	0%	2 mph3 km/h from W, gusts 4 mph7 km/h	87%	78%	0
Sun 4a	Cloudy	37°3° (likely 37°3° to 43°6°)	37°3°	0%	2 mph3 km/h from NW, gusts 4 mph7 km/h	89%	79%	0
Sun 5a	Cloudy	37°3° (likely 37°3° to 42°6°)	37°3°	0%	1 mph2 km/h from NW, gusts 5 mph7 km/h	90%	79%	0
Sun 6a	Cloudy	37°3° (likely 37°3° to 41°5°)	37°3°	0%	1 mph2 km/h from NW, gusts 4 mph7 km/h	86%	79%	0
Sun 7a	Cloudy	36°2° (likely 36°2° to 41°5°)	36°2°	0%	1 mph2 km/h from NW, gusts 4 mph6 km/h	87%	79%	0
Sun 8a	Cloudy	36°2° (likely 36°2° to 41°5°)	36°2°	0%	2 mph3 km/h from NW, gusts 4 mph6 km/h	89%	79%	0
Sun 9a	Cloudy	39°4° (likely 39°4° to 44°7°)	39°4°	0%	2 mph3 km/h from NW, gusts 5 mph8 km/h	84%	78%	0
Sun 10a	Cloudy	44°7° (likely 43°6° to 47°8°)	44°7°	0%	2 mph3 km/h from NW, gusts 8 mph13 km/h	78%	71%	1
Sun 11a	Cloudy	47°8° (likely 47°8° to 51°11°)	46°8°	0%	3 mph5 km/h from NW, gusts 9 mph15 km/h	68%	79%	2
Sun 12p	Cloudy	50°10° (likely 50°10° to 54°12°)	49°9°	0%	3 mph5 km/h from NW, gusts 9 mph15 km/h	63%	80%	2
Sun 1p	Cloudy	53°12° (likely 52°11° to 57°14°)	53°12°	0%	3 mph5 km/h from NW, gusts 8 mph13 km/h	57%	81%	3
Sun 2p	Cloudy	55°13° (likely 54°12° to 60°16°)	55°13°	0%	5 mph8 km/h from N, gusts 8 mph13 km/h	55%	82%	3
Sun 3p	Cloudy	55°13° (likely 55°13° to 61°16°)	55°13°	0%	5 mph8 km/h from N, gusts 8 mph12 km/h	52%	81%	2
Sun 4p	Cloudy	57°14° (likely 56°13° to 61°16°)	57°14°	0%	5 mph8 km/h from N, gusts 7 mph12 km/h	52%	82%	1
Sun 5p	Cloudy	55°13° (likely 55°13° to 60°16°)	55°13°	5%	5 mph8 km/h from N, gusts 8 mph13 km/h	55%	84%	1
Sun 6p	Cloudy	55°13° (likely 53°12° to 56°13°)	55°13°	5%	5 mph8 km/h from N, gusts 6 mph9 km/h	58%	84%	0
Sun 7p	Cloudy	52°11° (likely 51°11° to 54°12°)	52°11°	5%	5 mph8 km/h from N, gusts 6 mph9 km/h	64%	84%	0
Sun 8p	Cloudy	48°9° (likely 48°9° to 52°11°)	47°8°	5%	3 mph5 km/h from NW, gusts 5 mph7 km/h	71%	84%	0
Sun 9p	Cloudy	46°8° (likely 46°8° to 51°11°)	45°7°	5%	3 mph5 km/h from NW, gusts 5 mph8 km/h	76%	87%	0
Sun 10p	Cloudy	45°7° (likely 45°7° to 51°11°)	44°7°	5%	3 mph5 km/h from NW, gusts 4 mph7 km/h	79%	87%	0
Sun 11p	Cloudy	44°7° (likely 44°7° to 51°11°)	44°7°	10%	2 mph3 km/h from NW, gusts 5 mph9 km/h	82%	85%	0
Mon 12a	Mostly cloudy	43°6° (likely 43°6° to 50°10°)	43°6°	10%	2 mph3 km/h from NW, gusts 6 mph10 km/h	85%	73%	0
Mon 1a	Mostly cloudy	43°6° (likely 42°6° to 50°10°)	43°6°	10%	2 mph3 km/h from NW, gusts 6 mph9 km/h	86%	67%	0
Mon 2a	Mostly cloudy	42°6° (likely 41°5° to 51°11°)	42°6°	10%	2 mph3 km/h from W, gusts 6 mph10 km/h	88%	57%	0

Days ahead

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

Today, Oct 24. Fog. High 58°14°, low 34°1°. Typical 61°16° / 36°2°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Fog, 35°2°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 58°14°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 50°10°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 37°3°
  Dry
Official NWS forecast
Today: Patchy frost and patchy fog before 11am. Mostly sunny, with a high near 58. Northeast wind around 3 mph.
Tonight: Patchy frost and patchy fog. Partly cloudy, with a low around 34. Northeast wind around 1 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
58°14°–62°17°
Low, likely
34°1°–40°4°
Typical high / low
61°16° / 36°2°
Wind
6 mph9 km/h, gusts 11 mph17 km/h
UV peak
3
Tomorrow, Oct 25. Cloudy. High 57°14°, low 38°3°. Typical 61°16° / 36°2°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 36°2°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 57°14°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 48°9°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 42°6°
  Dry
Official NWS forecast
Day: Areas of frost before 11am. Mostly cloudy, with a high near 57. Northwest wind 1 to 5 mph.
Night: Patchy fog and a slight chance of rain showers after 5am. Mostly cloudy, with a low around 38. Northwest wind around 5 mph. Chance of precipitation is 20%.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
56°13°–61°16°
Low, likely
38°3°–41°5°
Typical high / low
61°16° / 36°2°
Wind
7 mph11 km/h, gusts 14 mph22 km/h
UV peak
3
Monday, Oct 26. Mostly cloudy. High 59°15°, low 38°3°. Typical 60°16° / 36°2°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 44°7°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 59°15°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 51°11°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 47°8°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Patchy fog and a slight chance of rain showers before 11am. Partly sunny, with a high near 59. Chance of precipitation is 20%.
Night: Mostly cloudy, with a low around 38.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
57°14°–62°17°
Low, likely
38°3°–49°9°
Typical high / low
60°16° / 36°2°
Wind
8 mph14 km/h, gusts 18 mph28 km/h
UV peak
3
Tuesday, Oct 27. Mostly cloudy. High 60°16°, low 38°3°. Typical 60°16° / 35°2°. Dry. Forecasts agree. Best day outdoors this week.
1. Morning
  6 AM–noon
  Cloudy, 48°9°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 62°17°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 54°12°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 50°10°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 60.
Night: A slight chance of rain showers after 5am. Mostly cloudy, with a low around 38.
Forecasts agreeIndependent forecasts are close; the range is narrow.
Best day outdoors this week: the one dry, mild day the forecasts agree on (high 60°16°).
High, likely
60°16°–63°17°
Low, likely
38°3°–49°9°
Typical high / low
60°16° / 35°2°
Wind
20 mph32 km/h, gusts 37 mph59 km/h
UV peak
3
Wednesday, Oct 28. Cloudy. High 57°14°, low 35°2°. Typical 59°15° / 35°2°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 48°9°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 59°15°
  Dry
3. Evening
  6 PM–midnight
  Clear, 50°10°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 43°6°
  20% chance
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of rain showers before 11am. Partly sunny, with a high near 57.
Night: A chance of rain showers after 11pm. Mostly cloudy, with a low around 35.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
57°14°–61°16°
Low, likely
35°2°–47°8°
Typical high / low
59°15° / 35°2°
Wind
18 mph29 km/h, gusts 29 mph46 km/h
UV peak
3
Thursday, Oct 29. Mostly cloudy. High 54°12°, low 33°1°. Typical 58°14° / 35°2°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 40°5°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 55°13°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 47°8°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 41°5°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of rain showers before 11am. Partly sunny, with a high near 54.
Night: Partly cloudy, with a low around 33.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
53°12°–57°14°
Low, likely
33°1°–44°7°
Typical high / low
58°14° / 35°2°
Wind
15 mph24 km/h, gusts 22 mph36 km/h
UV peak
3
Friday, Oct 30. Partly sunny. High 53°12°, low 39°4°. Typical 58°14° / 35°2°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 40°5°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 53°12°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 45°7°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 41°5°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 53.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
50°10°–56°13°
Low, likely
36°2°–42°6°
Typical high / low
58°14° / 35°2°
Wind
8 mph12 km/h, gusts 14 mph23 km/h
UV peak
2
Saturday, Oct 31. Cloudy. High 51°11°, low 39°4°. Typical 57°14° / 34°1°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 40°4°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 51°10°
  Dry
3. Evening
  6 PM–midnight
  Clear, 43°6°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 36°2°
  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
43°6°–57°14°
Low, likely
35°2°–41°5°
Typical high / low
57°14° / 34°1°
Wind
8 mph13 km/h, gusts 16 mph25 km/h
UV peak
3
Sunday, Nov 1. Sunny. High 53°12°, low 36°2°. Typical 57°14° / 34°1°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 37°3°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 53°12°
  Dry
3. Evening
  6 PM–midnight
  Clear, 47°8°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 37°3°
  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°–57°14°
Low, likely
34°1°–38°3°
Typical high / low
57°14° / 34°1°
Wind
11 mph18 km/h
UV peak
3
Monday, Nov 2. Sunny. High 51°11°, low 36°2°. Typical 56°13° / 34°1°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 38°3°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 52°11°
  Dry
3. Evening
  6 PM–midnight
  Clear, 42°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
45°7°–56°13°
Low, likely
34°1°–39°4°
Typical high / low
56°13° / 34°1°
Wind
9 mph15 km/h
UV peak
3

10 days15 days30 days

The outlook

Today
Dry, high 58°, low 34°.
Tomorrow
Dry, high 57°, low 38°.
Monday
Dry, high 59°, low 38°.
Rest of week
Mostly dry, highs 51–60°.

Want the meteorologists’ reasoning? Read the NWS forecast discussion (PDT) (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

Yakima River at Kiona

14 mi

Below flood stage

Level: 4.4 ft
Flow: 2,000 cfs

Forecast peak 4.5 ft Thu 11 AM

Reading from Sat 1:30 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 38Typical 123

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 29
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 18 hours are near freezing and damp, when outdoor units defrost more often.

Comfort

Dry air outside (dew point 36°F).

Open the windows?

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

Is this typical?

PASCO TRI CITIES AIRPORT · official normals 1991–2020 · records 1945–2026

Oct 24, today vs a typical year

Today’s expected high is 3°2° colder than typical.

Last 7 days vs normal

On average 2°1° colder than normal (daily mean temperature).

−3°−2°SunOct 18
−2°−1°MonOct 19
+2°+1°TueOct 20
−1°WedOct 21
−5°−3°ThuOct 22
—FriOct 23
—SatOct 24

West Pasco weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Daylight: 10 h 28 min; Losing 3 min 3 s a day; shortest Dec 21, 1 h 51 min less
Golden hour: 5:12–6:13 PM; Morning 7:07–8:08 AM
Blue hour: 6:13–6:25 PM; Morning 6:55–7:07 AM; first light 6:55 AM

Stars tonight? Fair

Mostly clear 3:12–5 AM, but the moon is 96% lit and up.

Moon

Waxing gibbous

96% lit · growing

Today: sets 5:43 AM · rises 4:55 PM
Full moon: Oct 25
New moon: Nov 8

Looking southeast from West Pasco. The highest point on the skyline is about 6,200 ft, 63 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

Freeze Warning