National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hot Weather in the West; Heavy Rainfall and Flooding in the Southwest

Hot to extremely hot temperatures are in place much of this week across parts of California and the interior Northwest U.S, with the Pacific Northwest carrying the potential for record-breaking high temperatures. Monsoonal moisture over the Southwest U.S. may lead to heavy rainfall and instances of flash flooding through Wednesday. Read More >

Hazardous Weather Conditions

Current conditions at

Walla Walla Regional Airport (KALW)

Lat: 46.09462°NLon: 118.2858°WElev: 1168.0ft.

Clear

88°F

31°C

Humidity 27%
Wind Speed W 5 MPH
Barometer 30.03 in (1016.93 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 02 Sep 12:05 PM PDT
Extended Forecast for

4 Miles NNW Milton-freewater OR

Extreme Heat Warning until September 4, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning until September 4, 08:00pm

    NOW until 8:00pm Thu

    Extreme Heat Warning

  • This Afternoon

    High: 100 °F

    Haze

  • Tonight

    Tonight: Mostly clear, with a low around 65. North wind around 5 mph becoming southeast in the evening.

    Low: 65 °F

    Mostly Clear

  • Wednesday

    Wednesday: Widespread haze after 2pm. Sunny and hot, with a high near 101. Calm wind becoming northwest around 6 mph in the afternoon.

    High: 101 °F

    Mostly Sunny
    then Haze

  • Wednesday Night

    Wednesday Night: Widespread haze before 8pm. Mostly clear, with a low around 67. Northwest wind 5 to 7 mph becoming southeast after midnight.

    Low: 67 °F

    Haze then
    Mostly Clear

  • Thursday

    Thursday: Mostly sunny and hot, with a high near 99. Southeast wind around 6 mph becoming northwest in the afternoon.

    High: 99 °F

    Hot

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 66.

    Low: 66 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 95.

    High: 95 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 65.

    Low: 65 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Widespread haze. Sunny and hot, with a high near 100. Northwest wind around 6 mph.
Tonight
Mostly clear, with a low around 65. North wind around 5 mph becoming southeast in the evening.
Wednesday
Widespread haze after 2pm. Sunny and hot, with a high near 101. Calm wind becoming northwest around 6 mph in the afternoon.
Wednesday Night
Widespread haze before 8pm. Mostly clear, with a low around 67. Northwest wind 5 to 7 mph becoming southeast after midnight.
Thursday
Mostly sunny and hot, with a high near 99. Southeast wind around 6 mph becoming northwest in the afternoon.
Thursday Night
Partly cloudy, with a low around 66.
Friday
Mostly sunny, with a high near 95.
Friday Night
Mostly cloudy, with a low around 65.
Saturday
A 30 percent chance of showers, mainly before 11am. Partly sunny, with a high near 88.
Saturday Night
A slight chance of showers before 11pm. Mostly cloudy, with a low around 62.
Sunday
A slight chance of showers. Partly sunny, with a high near 87.
Sunday Night
A slight chance of showers. Mostly cloudy, with a low around 60.
Monday
A chance of showers. Partly sunny, with a high near 84.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNW Milton-freewater OR
 45.98°N 118.42°W (Elev. 801 ft)
Last Update:
9:30 am PDT Sep 2, 2025
Forecast Valid:
12pm PDT Sep 2, 2025-6pm PDT Sep 8, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation