Freeze Warning
Ends in 1 h 33 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 8:00 AM PDT at KPSC

Kennewick, WA weather

Freeze Warning. 30°−1° and sunny now.

Forecasts agree

Now 30°−1°

Sunny

Wind: Calm; Light through 8 PM
Dew point: 30°−1°; Dry · up to 40°4° by 10 AM (comfortable)
Humidity: 100%; Air 30°−1°, dew point 30°−1° · frost likely
UV tomorrow: 3Moderate; Moderate 12–3 PM · peak 3
Air quality: 31Good; Main pollutant: PM2.5 (fine particles)
Pressure: 30.27 inHg1025 hPa; Steady over the last 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

20°11° cooler than this time yesterday (50°10° then, 30°−1° now)

Good hours for

Fog until 10 AM
Above 50°10° today by noon
High 57°14° today at 4 PM
Below 50°10° tonight after 8 PM

This morningUp to 48°9° by 11 AM · Partly cloudy
This afternoonUp to 57°14° by 4 PM · Partly cloudy
TonightDown to 40°4° by 4 AM · Mostly cloudy
Tomorrow morningUp to 47°8° by 11 AM · Mostly cloudy
Tomorrow afternoonUp to 56°13° by 4 PM · Mostly cloudy
Tomorrow nightDown to 42°6° by 5 AM · rain chance 20% · 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 8a	Fog	37°3° (likely 34°1° to 39°4°)	37°3°	0%	1 mph2 km/h from S, gusts 2 mph4 km/h	92%	21%	0
Sat 9a	Fog	41°5° (likely 38°3° to 43°6°)	41°5°	0%	1 mph2 km/h from S, gusts 2 mph3 km/h	87%	23%	0
Sat 10a	Sunny	45°7° (likely 44°7° to 47°8°)	45°7°	0%	1 mph2 km/h from NE, gusts 2 mph3 km/h	81%	28%	1
Sat 11a	Mostly sunny	48°9° (likely 48°9° to 50°10°)	48°9°	0%	1 mph2 km/h from NE, gusts 4 mph7 km/h	74%	41%	1
Sat 12p	Cloudy	50°10° (likely 50°10° to 53°12°)	50°10°	0%	2 mph3 km/h from NE, gusts 4 mph6 km/h	68%	66%	2
Sat 1p	Partly sunny	54°12° (likely 54°12° to 56°13°)	54°12°	0%	2 mph3 km/h from NE, gusts 4 mph6 km/h	62%	49%	2
Sat 2p	Partly sunny	55°13° (likely 55°13° to 58°14°)	55°13°	0%	3 mph5 km/h from NE, gusts 4 mph7 km/h	58%	50%	2
Sat 3p	Partly sunny	55°13° (likely 55°13° to 59°15°)	55°13°	0%	3 mph5 km/h from NE, gusts 5 mph8 km/h	55%	57%	1
Sat 4p	Partly sunny	57°14° (likely 57°14° to 59°15°)	57°14°	0%	3 mph5 km/h from NE, gusts 4 mph7 km/h	53%	77%	1
Sat 5p	Cloudy	55°13° (likely 55°13° to 58°14°)	55°13°	0%	3 mph5 km/h from NE, gusts 5 mph8 km/h	56%	60%	1
Sat 6p	Cloudy	53°12° (likely 52°11° to 55°13°)	53°12°	0%	2 mph3 km/h from NE, gusts 4 mph6 km/h	60%	67%	0
Sat 7p	Cloudy	51°11° (likely 50°10° to 52°11°)	51°11°	0%	2 mph3 km/h from S, gusts 3 mph4 km/h	66%	58%	0
Sat 8p	Cloudy	47°8° (likely 47°8° to 50°10°)	47°8°	0%	2 mph3 km/h from W, gusts 3 mph4 km/h	68%	59%	0
Sat 9p	Cloudy	46°8° (likely 46°8° to 48°9°)	46°8°	0%	2 mph3 km/h from W, gusts 3 mph4 km/h	70%	78%	0
Sat 10p	Cloudy	46°8° (likely 43°6° to 47°8°)	46°8°	0%	2 mph3 km/h from W, gusts 3 mph4 km/h	70%	80%	0
Sat 11p	Cloudy	45°7° (likely 43°6° to 46°8°)	44°7°	0%	3 mph5 km/h from W, gusts 4 mph6 km/h	71%	82%	0
Sun 12a	Cloudy	44°7° (likely 42°6° to 45°7°)	43°6°	0%	3 mph5 km/h from W, gusts 5 mph7 km/h	71%	80%	0
Sun 1a	Cloudy	44°7° (likely 42°6° to 44°7°)	43°6°	0%	3 mph5 km/h from W, gusts 5 mph8 km/h	71%	80%	0
Sun 2a	Cloudy	43°6° (likely 42°6° to 44°7°)	42°6°	0%	3 mph5 km/h from W, gusts 5 mph8 km/h	72%	80%	0
Sun 3a	Cloudy	42°6° (likely 41°5° to 44°7°)	42°6°	0%	2 mph3 km/h from W, gusts 6 mph9 km/h	73%	80%	0
Sun 4a	Cloudy	40°4° (likely 40°4° to 43°6°)	40°4°	0%	2 mph3 km/h from W, gusts 6 mph9 km/h	75%	79%	0
Sun 5a	Cloudy	40°4° (likely 39°4° to 43°6°)	40°4°	0%	2 mph3 km/h from W, gusts 5 mph8 km/h	77%	78%	0
Sun 6a	Cloudy	39°4° (likely 39°4° to 42°6°)	39°4°	0%	2 mph3 km/h from W, gusts 5 mph8 km/h	77%	78%	0
Sun 7a	Cloudy	38°3° (likely 38°3° to 42°6°)	38°3°	0%	2 mph3 km/h from W, gusts 5 mph8 km/h	80%	78%	0
Sun 8a	Cloudy	39°4° (likely 38°3° to 42°6°)	39°4°	0%	2 mph3 km/h from NW, gusts 4 mph7 km/h	81%	78%	0
Sun 9a	Cloudy	42°6° (likely 40°4° to 45°7°)	42°6°	0%	2 mph3 km/h from NW, gusts 6 mph9 km/h	77%	77%	1
Sun 10a	Mostly cloudy	45°7° (likely 43°6° to 48°9°)	45°7°	0%	2 mph3 km/h from NW, gusts 6 mph10 km/h	73%	70%	1
Sun 11a	Cloudy	47°8° (likely 47°8° to 50°10°)	45°7°	0%	5 mph8 km/h from N, gusts 7 mph12 km/h	67%	78%	2
Sun 12p	Cloudy	50°10° (likely 50°10° to 53°12°)	49°9°	0%	5 mph8 km/h from N, gusts 7 mph12 km/h	63%	79%	3
Sun 1p	Cloudy	53°12° (likely 52°11° to 55°13°)	53°12°	0%	5 mph8 km/h from N, gusts 7 mph11 km/h	58%	82%	3
Sun 2p	Cloudy	54°12° (likely 54°12° to 58°14°)	54°12°	0%	5 mph8 km/h from N, gusts 6 mph10 km/h	56%	83%	3
Sun 3p	Cloudy	54°12° (likely 54°12° to 59°15°)	54°12°	0%	5 mph8 km/h from N, gusts 6 mph10 km/h	55%	84%	2
Sun 4p	Cloudy	56°13° (likely 55°13° to 60°16°)	56°13°	0%	5 mph8 km/h from N, gusts 6 mph10 km/h	55%	83%	1
Sun 5p	Cloudy	54°12° (likely 54°12° to 59°15°)	54°12°	5%	3 mph5 km/h from N, gusts 6 mph10 km/h	58%	84%	1
Sun 6p	Cloudy	53°12° (likely 52°11° to 55°13°)	53°12°	5%	3 mph5 km/h from N, gusts 5 mph8 km/h	62%	86%	0
Sun 7p	Cloudy	50°10° (likely 50°10° to 53°12°)	49°9°	5%	3 mph5 km/h from N, gusts 4 mph7 km/h	65%	85%	0
Sun 8p	Cloudy	48°9° (likely 48°9° to 52°11°)	47°8°	5%	5 mph8 km/h from NW, gusts 6 mph9 km/h	68%	85%	0
Sun 9p	Mostly cloudy	47°8° (likely 47°8° to 51°11°)	45°7°	5%	5 mph8 km/h from NW, gusts 6 mph10 km/h	70%	55%	0
Sun 10p	Mostly cloudy	46°8° (likely 46°8° to 51°11°)	44°7°	5%	5 mph8 km/h from NW, gusts 4 mph7 km/h	70%	71%	0
Sun 11p	Cloudy	46°8° (likely 46°8° to 50°10°)	45°7°	10%	3 mph5 km/h from W, gusts 6 mph10 km/h	71%	86%	0
Mon 12a	Cloudy	46°8° (likely 46°8° to 50°10°)	45°7°	10%	3 mph5 km/h from W, gusts 5 mph8 km/h	72%	84%	0
Mon 1a	Cloudy	45°7° (likely 45°7° to 49°9°)	44°7°	10%	3 mph5 km/h from W, gusts 7 mph12 km/h	73%	82%	0
Mon 2a	Mostly cloudy	45°7° (likely 45°7° to 50°10°)	44°7°	10%	3 mph5 km/h from W, gusts 9 mph15 km/h	75%	69%	0
Mon 3a	Clear	44°7° (likely 44°7° to 49°9°)	43°6°	10%	3 mph5 km/h from W, gusts 10 mph16 km/h	77%	26%	0
Mon 4a	Mostly cloudy	43°6° (likely 43°6° to 49°9°)	42°6°	10%	3 mph5 km/h from W, gusts 8 mph14 km/h	79%	38%	0
Mon 5a	Cloudy	42°6° (likely 40°4° to 49°9°)	40°4°	20%	3 mph5 km/h from W, gusts 8 mph14 km/h	81%	66%	0
Mon 6a	Showers	41°5° (likely 36°2° to 48°9°)	39°4°	20%	3 mph5 km/h from W, gusts 6 mph10 km/h	83%	52%	0
Mon 7a	Showers	41°5° (likely 35°2° to 48°9°)	39°4°	20%	3 mph5 km/h from W, gusts 5 mph8 km/h	84%	65%	0

Days ahead

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

Today, Oct 24. Fog. High 57°14°, low 37°3°. Typical 61°16° / 36°2°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 37°3°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 57°14°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 47°8°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 40°4°
  Dry
Official NWS forecast
Today: Patchy frost and patchy fog before 11am. Mostly sunny. High near 57, with temperatures falling to around 55 in the afternoon. Northeast wind around 3 mph.
Tonight: Mostly cloudy. Low around 37, with temperatures rising to around 40 overnight. West wind around 3 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
57°14°–59°15°
Low, likely
33°1°–38°3°
Typical high / low
61°16° / 36°2°
Wind
9 mph14 km/h
UV peak
3
Tomorrow, Oct 25. Cloudy. High 56°13°, low 40°4°. Typical 61°16° / 36°2°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 39°4°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 56°13°
  Dry
3. Evening
  6 PM–midnight
  Mostly cloudy, 48°9°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 42°6°
  Dry
Official NWS forecast
Day: Mostly cloudy. High near 56, with temperatures falling to around 54 in the afternoon. Northwest wind around 5 mph.
Night: A slight chance of rain showers after 5am. Mostly cloudy, with a low around 40. Northwest wind around 5 mph. Chance of precipitation is 20%.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
55°13°–60°16°
Low, likely
38°3°–42°6°
Typical high / low
61°16° / 36°2°
Wind
7 mph11 km/h, gusts 13 mph22 km/h
UV peak
3
Monday, Oct 26. Mostly cloudy. High 58°14°, low 40°4°. Typical 60°16° / 36°2°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 43°6°
  20% chance · 0.01 in0.4 mm
2. Afternoon
  noon–6 PM
  Cloudy, 59°15°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 51°11°
  Dry
4. Overnight
  midnight–6 AM
  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 58. West wind around 6 mph. Chance of precipitation is 20%.
Night: Partly cloudy, with a low around 40.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
57°14°–61°16°
Low, likely
37°3°–47°8°
Typical high / low
60°16° / 36°2°
Wind
10 mph16 km/h, gusts 19 mph31 km/h
UV peak
3
Tuesday, Oct 27. Mostly cloudy. High 59°15°, low 40°4°. Typical 60°16° / 35°2°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 47°8°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 61°16°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 53°12°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 49°9°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 59.
Night: A slight chance of rain showers after 5am. Mostly cloudy, with a low around 40. Chance of precipitation is 20%.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
59°15°–62°17°
Low, likely
40°4°–48°9°
Typical high / low
60°16° / 35°2°
Wind
21 mph34 km/h, gusts 37 mph59 km/h
UV peak
3
Wednesday, Oct 28. Cloudy. High 56°13°, low 37°3°. Typical 59°15° / 35°2°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Partly sunny, 48°9°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 59°15°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 49°9°
  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 56.
Night: A chance of rain showers after 11pm. Mostly cloudy, with a low around 37.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
56°13°–61°16°
Low, likely
37°3°–47°8°
Typical high / low
59°15° / 35°2°
Wind
16 mph26 km/h, gusts 26 mph42 km/h
UV peak
3
Thursday, Oct 29. Mostly cloudy. High 53°12°, low 35°2°. Typical 58°14° / 35°2°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Partly sunny, 39°4°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 54°12°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 46°8°
  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 showers before 11am. Partly sunny, with a high near 53.
Night: Partly cloudy, with a low around 35.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
52°11°–57°14°
Low, likely
34°1°–44°7°
Typical high / low
58°14° / 35°2°
Wind
11 mph17 km/h, gusts 22 mph35 km/h
UV peak
2
Friday, Oct 30. Partly sunny. High 52°11°, low 34°1°. Typical 58°14° / 35°2°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 40°4°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 53°12°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 44°7°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 39°4°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 52.
Night: Partly cloudy, with a low around 34.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
49°9°–55°13°
Low, likely
34°1°–42°6°
Typical high / low
58°14° / 35°2°
Wind
9 mph15 km/h
UV peak
3
Saturday, Oct 31. Cloudy. High 49°9°, low 37°3°. Typical 57°14° / 34°1°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 38°3°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 49°9°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 42°5°
  Dry
4. Overnight
  midnight–6 AM
  Mostly 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
42°6°–54°12°
Low, likely
34°1°–41°5°
Typical high / low
57°14° / 34°1°
Wind
11 mph18 km/h
UV peak
3
Sunday, Nov 1. Cloudy. High 53°12°, low 38°3°. Typical 57°14° / 34°1°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 39°4°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 54°12°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 49°9°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 38°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.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
48°9°–60°16°
Low, likely
34°1°–43°6°
Typical high / low
57°14° / 34°1°
Wind
9 mph15 km/h, gusts 16 mph26 km/h
UV peak
3
Monday, Nov 2. Cloudy. High 52°11°, low 38°3°. Typical 56°13° / 34°1°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 40°4°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 53°11°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 46°8°
  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°–60°16°
Low, likely
34°1°–41°5°
Typical high / low
56°13° / 34°1°
Wind
9 mph15 km/h
UV peak
3

10 days15 days30 days

The outlook

Today
Dry, high 57°, low 37°.
Tomorrow
Dry, high 56°, low 40°.
Monday
Dry, high 58°, low 40°.
Rest of week
Mostly dry, highs 49–59°.

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

15 mi

Below flood stage

Level: 4.4 ft
Flow: 2,030 cfs

Forecast peak 4.5 ft Thu 11 AM

Reading from Sat 6:30 AM · NWS gauge page

Walla Walla River near Touchet

24 mi

Below flood stage

Level: 3.0 ft
Flow: 75 cfs

Forecast peak 2.8 ft Wed 5 AM

Reading from Sat 7:30 AM · NWS gauge page

Umatilla River at Umatilla

22 mi

Level: 2.9 ft
Flow: 206 cfs

Reading from Sat 7:30 AM · NWS gauge page

For your home

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

Heating this week

About 71% less heating than a typical week.

This week 35Typical 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 6 hours are near freezing and damp, when outdoor units defrost more often.

Comfort

Dry air outside (dew point 30°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?

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

Oct 24, today vs a typical year

Today’s expected high is 4°2° colder than typical.

Last 7 days vs normal

On average 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
+2°+1°FriOct 23
—SatOct 24

Kennewick 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? Poor

Clouds most of the night (about 75% cover).

Moon

Waxing gibbous

97% lit · growing

Today: sets 5:42 AM · rises 4:55 PM
Full moon: Oct 25
New moon: Nov 8

Looking southeast from Kennewick. The highest point on the skyline is about 6,100 ft, 62 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