Freeze Warning
Starts in 6 h 40 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 3:55 PM PDT at KPSC

Pasco, WA weather

Freeze Warning. 66°19° and sunny now.

Mostly agree

Now 66°19°

Sunny

Wind: 7 mph11 km/h; From the northwest. Up to 8 mph13 km/h through 4 AM
Dew point: 27°−3°; Dry · up to 37°3° by 5 PM (comfortable)
UV tomorrow: 3Moderate; Moderate 12–4 PM · peak 3
Air quality: 8Good; Main pollutant: PM10 (dust)
Pressure: 30.2 inHg1023 hPa; Rising slowly · +0.02 inHg+0.6 hPa in 3 h

None rain now, through the next 2 hours.

From forecast models

Next 48 hours

Good hours for

Below 50°10° tonight after 8 PM
Fog tonight 5–6 AM
Below freezing tomorrow 7–9 AM (low 30°−1°)
Fog tomorrow 7–11 AM
Above 40°4° tomorrow by 10 AM

This afternoonNear 62°17° · Clear
TonightDown to 33°1° by 5 AM · Clear
Tomorrow morningUp to 47°8° by 11 AM · Partly cloudy · freezing, low 30°−1°
Tomorrow afternoonUp to 58°14° by 4 PM · Mostly cloudy
Tomorrow nightDown to 33°1° by 5 AM · Mostly cloudy
Sunday morningUp to 47°8° by 11 AM · Mostly cloudy
Sunday afternoonUp to 56°13° by 3 PM · 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
Fri 4p	Sunny	63°17° (likely 62°17° to 65°18°)	63°17°	0%	9 mph14 km/h from W, gusts 12 mph19 km/h	33%	0%	1
Fri 5p	Sunny	61°16° (likely 60°16° to 62°17°)	61°16°	0%	8 mph13 km/h from SW, gusts 12 mph20 km/h	40%	0%	1
Fri 6p	Clear	58°14° (likely 56°13° to 58°14°)	58°14°	0%	8 mph13 km/h from S, gusts 11 mph17 km/h	47%	0%	0
Fri 7p	Clear	54°12° (likely 53°12° to 54°12°)	54°12°	0%	8 mph13 km/h from S, gusts 10 mph16 km/h	61%	0%	0
Fri 8p	Clear	48°9° (likely 48°9° to 52°11°)	44°7°	0%	8 mph13 km/h from S, gusts 7 mph11 km/h	78%	0%	0
Fri 9p	Clear	46°8° (likely 46°8° to 50°10°)	43°6°	0%	6 mph10 km/h from SE, gusts 7 mph11 km/h	85%	0%	0
Fri 10p	Clear	43°6° (likely 43°6° to 48°9°)	40°4°	0%	5 mph8 km/h from E, gusts 5 mph9 km/h	92%	0%	0
Fri 11p	Clear	41°5° (likely 41°5° to 47°8°)	38°3°	0%	5 mph8 km/h from SE, gusts 4 mph7 km/h	100%	0%	0
Sat 12a	Clear	40°4° (likely 40°4° to 46°8°)	37°3°	0%	3 mph5 km/h from W, gusts 4 mph7 km/h	100%	0%	0
Sat 1a	Clear	39°4° (likely 39°4° to 45°7°)	39°4°	0%	2 mph3 km/h from S, gusts 4 mph6 km/h	100%	0%	0
Sat 2a	Clear	37°3° (likely 37°3° to 44°7°)	37°3°	0%	0 mph0 km/h, gusts 4 mph7 km/h	100%	0%	0
Sat 3a	Clear	36°2° (likely 36°2° to 43°6°)	36°2°	0%	0 mph0 km/h, gusts 4 mph7 km/h	100%	0%	0
Sat 4a	Clear	35°2° (likely 35°2° to 42°6°)	35°2°	0%	0 mph0 km/h, gusts 4 mph6 km/h	100%	5%	0
Sat 5a	Fog	33°1° (likely 33°1° to 41°5°)	33°1°	0%	0 mph0 km/h, gusts 4 mph6 km/h	100%	44%	0
Sat 6a	Clear	33°1° (likely 33°1° to 41°5°)	33°1°	0%	0 mph0 km/h, gusts 3 mph5 km/h	99%	20%	0
Sat 7a	Fog	32°0° (likely 32°0° to 41°5°)	32°0°	0%	0 mph0 km/h, gusts 3 mph5 km/h	100%	53%	0
Sat 8a	Fog	30°−1° (likely 30°−1° to 40°4°)	30°−1°	0%	0 mph0 km/h, gusts 4 mph6 km/h	100%	67%	0
Sat 9a	Fog	36°2° (likely 36°2° to 44°7°)	36°2°	0%	0 mph0 km/h, gusts 3 mph5 km/h	94%	70%	1
Sat 10a	Fog	43°6° (likely 43°6° to 48°9°)	43°6°	0%	0 mph0 km/h, gusts 2 mph4 km/h	82%	57%	1
Sat 11a	Mostly sunny	47°8° (likely 47°8° to 52°11°)	47°8°	0%	0 mph0 km/h, gusts 2 mph3 km/h	70%	65%	2
Sat 12p	Mostly sunny	50°10° (likely 50°10° to 56°13°)	50°10°	0%	0 mph0 km/h, gusts 3 mph5 km/h	63%	64%	3
Sat 1p	Partly sunny	54°12° (likely 54°12° to 59°15°)	54°12°	0%	0 mph0 km/h, gusts 3 mph5 km/h	58%	47%	3
Sat 2p	Mostly sunny	56°13° (likely 56°13° to 61°16°)	56°13°	0%	1 mph2 km/h from N, gusts 3 mph5 km/h	52%	48%	3
Sat 3p	Mostly sunny	56°13° (likely 56°13° to 63°17°)	56°13°	0%	2 mph3 km/h from NE, gusts 4 mph7 km/h	48%	44%	3
Sat 4p	Cloudy	58°14° (likely 58°14° to 63°17°)	58°14°	0%	2 mph3 km/h from NE, gusts 5 mph8 km/h	46%	77%	2
Sat 5p	Cloudy	56°13° (likely 56°13° to 61°16°)	56°13°	0%	2 mph3 km/h from N, gusts 5 mph9 km/h	50%	81%	1
Sat 6p	Cloudy	54°12° (likely 54°12° to 55°13°)	54°12°	0%	2 mph3 km/h from N, gusts 5 mph8 km/h	56%	80%	0
Sat 7p	Cloudy	51°11° (likely 51°11° to 52°11°)	51°11°	0%	2 mph3 km/h from N, gusts 5 mph8 km/h	67%	65%	0
Sat 8p	Cloudy	46°8° (likely 46°8° to 49°9°)	46°8°	0%	2 mph3 km/h from NW, gusts 4 mph7 km/h	80%	60%	0
Sat 9p	Cloudy	44°7° (likely 44°7° to 48°9°)	44°7°	0%	2 mph3 km/h from NW, gusts 4 mph6 km/h	85%	79%	0
Sat 10p	Cloudy	42°6° (likely 42°6° to 47°8°)	42°6°	0%	2 mph3 km/h from NW, gusts 4 mph6 km/h	89%	80%	0
Sat 11p	Cloudy	40°4° (likely 40°4° to 46°8°)	40°4°	0%	2 mph3 km/h from NW, gusts 3 mph5 km/h	93%	81%	0
Sun 12a	Cloudy	40°4° (likely 40°4° to 45°7°)	40°4°	0%	2 mph3 km/h from NW, gusts 3 mph5 km/h	92%	77%	0
Sun 1a	Cloudy	39°4° (likely 39°4° to 44°7°)	39°4°	0%	2 mph3 km/h from NW, gusts 3 mph5 km/h	93%	79%	0
Sun 2a	Cloudy	37°3° (likely 37°3° to 44°7°)	37°3°	0%	1 mph2 km/h from N, gusts 4 mph6 km/h	93%	79%	0
Sun 3a	Cloudy	36°2° (likely 36°2° to 43°6°)	36°2°	0%	1 mph2 km/h from N, gusts 4 mph6 km/h	93%	71%	0
Sun 4a	Cloudy	34°1° (likely 34°1° to 42°6°)	34°1°	0%	1 mph2 km/h from N, gusts 4 mph6 km/h	95%	79%	0
Sun 5a	Cloudy	33°1° (likely 33°1° to 41°5°)	33°1°	0%	0 mph0 km/h, gusts 5 mph8 km/h	96%	81%	0
Sun 6a	Cloudy	33°1° (likely 33°1° to 41°5°)	33°1°	0%	0 mph0 km/h, gusts 5 mph7 km/h	92%	78%	0
Sun 7a	Cloudy	33°1° (likely 33°1° to 41°5°)	33°1°	0%	0 mph0 km/h, gusts 4 mph7 km/h	94%	78%	0
Sun 8a	Cloudy	33°1° (likely 33°1° to 41°5°)	33°1°	0%	0 mph0 km/h, gusts 5 mph7 km/h	97%	83%	0
Sun 9a	Cloudy	36°2° (likely 36°2° to 44°7°)	36°2°	0%	0 mph0 km/h, gusts 4 mph6 km/h	90%	75%	0
Sun 10a	Fog	42°6° (likely 41°5° to 48°9°)	42°6°	0%	0 mph0 km/h, gusts 6 mph10 km/h	78%	70%	1
Sun 11a	Partly sunny	47°8° (likely 45°7° to 53°12°)	46°8°	5%	3 mph5 km/h from NW, gusts 7 mph12 km/h	66%	74%	2
Sun 12p	Partly sunny	50°10° (likely 46°8° to 57°14°)	49°9°	5%	3 mph5 km/h from NW, gusts 9 mph14 km/h	59%	69%	3
Sun 1p	Cloudy	53°12° (likely 50°10° to 59°15°)	53°12°	5%	3 mph5 km/h from NW, gusts 9 mph15 km/h	54%	78%	3
Sun 2p	Cloudy	55°13° (likely 53°12° to 61°16°)	55°13°	5%	6 mph10 km/h from N, gusts 10 mph16 km/h	52%	79%	3
Sun 3p	Partly sunny	56°13° (likely 55°13° to 62°17°)	56°13°	5%	6 mph10 km/h from N, gusts 9 mph15 km/h	50%	71%	2

Days ahead

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

Today, Oct 23. Cloudy. High 63°17°, low 28°−2°. Typical 62°17° / 36°2°. Dry. Mostly agree.
1. Afternoon
  noon–6 PM
  Sunny, 63°17°
  Dry
2. Evening
  6 PM–midnight
  Clear, 48°9°
  Dry
3. Overnight
  midnight–6 AM
  Clear, 33°1°
  Dry
Official NWS forecast
Today: Sunny. High near 63, with temperatures falling to around 61 in the afternoon. West wind around 9 mph.
Tonight: Widespread frost and patchy fog after 2am. Mostly clear. Low around 28, with temperatures rising to around 33 overnight. Southeast wind 0 to 8 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
62°17°–65°18°
Low, likely
28°−2°–47°8°
Typical high / low
62°17° / 36°2°
Wind
10 mph17 km/h, gusts 20 mph33 km/h
UV peak
3
Tomorrow, Oct 24. Fog. High 58°14°, low 28°−2°. Typical 61°16° / 36°2°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Fog, 30°−1°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 58°14°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 46°8°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 33°1°
  Dry
Official NWS forecast
Day: Widespread frost and patchy fog before 11am. Mostly sunny. High near 58, with temperatures falling to around 56 in the afternoon. Northeast wind around 2 mph.
Night: Patchy fog between 2am and 5am, then widespread frost and patchy fog. Mostly cloudy, with a low around 28. North wind around 2 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
58°14°–63°17°
Low, likely
28°−2°–40°4°
Typical high / low
61°16° / 36°2°
Wind
5 mph9 km/h
UV peak
3
Sunday, Oct 25. Cloudy. High 57°14°, low 31°−1°. Typical 61°16° / 36°2°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 33°1°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 59°15°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 50°10°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 45°7°
  Dry
Official NWS forecast
Day: Widespread frost and patchy fog before 11am. Partly sunny, with a high near 57. North wind 0 to 6 mph.
Night: Patchy fog and a slight chance of rain showers after 11pm. Mostly cloudy, with a low around 31. Chance of precipitation is 20%.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
56°13°–61°16°
Low, likely
31°−1°–41°5°
Typical high / low
61°16° / 36°2°
Wind
9 mph14 km/h, gusts 15 mph24 km/h
UV peak
3
Monday, Oct 26. Mostly cloudy. High 59°15°, low 32°0°. Typical 60°16° / 36°2°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 45°7°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 58°14°
  Dry
3. Evening
  6 PM–midnight
  Clear, 50°10°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 46°8°
  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 59. Chance of precipitation is 20%.
Night: Partly cloudy, with a low around 32.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
54°12°–62°17°
Low, likely
32°0°–48°9°
Typical high / low
60°16° / 36°2°
Wind
11 mph18 km/h
UV peak
3
Tuesday, Oct 27. Cloudy. High 60°16°, low 31°−1°. Typical 60°16° / 35°2°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 46°8°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 61°16°
  Dry
3. Evening
  6 PM–midnight
  Clear, 53°12°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 48°9°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 60.
Night: Partly cloudy, with a low around 31.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
59°15°–63°17°
Low, likely
31°−1°–48°9°
Typical high / low
60°16° / 35°2°
Wind
19 mph31 km/h, gusts 26 mph41 km/h
UV peak
3
Wednesday, Oct 28. Partly sunny. High 58°14°, low 28°−2°. Typical 59°15° / 35°2°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 47°8°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 57°14°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 50°10°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 45°7°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 58.
Night: Partly cloudy, with a low around 28.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
53°12°–61°16°
Low, likely
28°−2°–46°8°
Typical high / low
59°15° / 35°2°
Wind
21 mph34 km/h
UV peak
3
Thursday, Oct 29. Partly sunny. High 55°13°, low 28°−2°. Typical 58°14° / 35°2°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Partly sunny, 44°7°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 55°13°
  Dry
3. Evening
  6 PM–midnight
  Clear, 47°8°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 39°4°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 55.
Night: Partly cloudy, with a low around 28.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
53°12°–58°14°
Low, likely
28°−2°–45°7°
Typical high / low
58°14° / 35°2°
Wind
15 mph24 km/h, gusts 21 mph33 km/h
UV peak
3
Friday, Oct 30. Cloudy. High 52°11°, low 39°4°. Typical 58°14° / 35°2°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 40°4°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 51°11°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 45°7°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 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.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
50°10°–54°12°
Low, likely
37°3°–41°5°
Typical high / low
58°14° / 35°2°
Wind
6 mph10 km/h, gusts 12 mph19 km/h
UV peak
3
Saturday, Oct 31. Cloudy. High 51°11°, low 35°2°. Typical 57°14° / 34°1°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 35°2°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 50°10°
  Dry
3. Evening
  6 PM–midnight
  Clear, 43°6°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 35°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
46°8°–54°12°
Low, likely
29°−2°–37°3°
Typical high / low
57°14° / 34°1°
Wind
11 mph17 km/h
UV peak
3
Sunday, Nov 1. Partly sunny. High 52°11°, low 36°2°. Typical 57°14° / 34°1°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Mostly sunny, 36°2°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 51°11°
  Dry
3. Evening
  6 PM–midnight
  Clear, 43°6°
  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
44°7°–56°13°
Low, likely
27°−3°–39°4°
Typical high / low
57°14° / 34°1°
Wind
8 mph13 km/h
UV peak
3

10 days15 days30 days

The outlook

Today
Dry, high 63°, low 28°.
Tomorrow
Dry, high 58°, low 28°, cooling off.
Sunday
Dry, high 57°, low 31°.
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

17 mi

Below flood stage

Level: 4.5 ft
Flow: 2,080 cfs

Forecast peak 4.5 ft Thu 11 AM

Reading from Fri 2:30 PM · NWS gauge page

Walla Walla River near Touchet

25 mi

Below flood stage

Level: 2.8 ft
Flow: 60 cfs

Forecast peak 3.0 ft Fri 5 PM

Reading from Fri 2:30 PM · NWS gauge page

For your home

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

Heating this week

About 65% less heating than a typical week.

This week 42Typical 120

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 31
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 23 hours are near freezing and damp, when outdoor units defrost more often.

Comfort

Dry air outside (dew point 27°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 23, today vs a typical year

Today’s expected high is about typical for the date.

Last 7 days vs normal

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

+5°+3°SatOct 17
−3°−2°SunOct 18
−2°−1°MonOct 19
+2°+1°TueOct 20
−1°WedOct 21
−5°−3°ThuOct 22
—FriOct 23

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

Sun & moon

Sun

Daylight: 10 h 31 min; Losing 3 min 3 s a day; shortest Dec 21, 1 h 54 min less
Golden hour: 5:13–6:14 PM; Morning 7:06–8:07 AM
Blue hour: 6:14–6:26 PM; Morning 6:54–7:06 AM; first light 6:54 AM

Stars tonight? Fair

Clear 6:26 PM–5 AM, but the moon is 96% lit and up.

Moon

Waxing gibbous

94% lit · growing

Today: sets 4:28 AM · rises 4:36 PM
Full moon: Oct 25
New moon: Nov 8

Looking west from Pasco. The highest point on the skyline is about 6,700 ft, 6 mi away.Skyline from USGS elevation data, heights drawn up to 4× taller. Sky, sun and moon as they are now.

1 active weather alert

Freeze Warning