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

Areas of Dangerous Heat and Heavy Rain with Possible Flooding into this Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend with heat advisories in effect. Heavy to excessive rainfall occurring at times through Sunday could bring areas of flooding to parts of the upper Midwest, central Great Lakes, southern New England and Virginia/North Carolina tidewater region. Read More >

Current conditions at

Walla Walla Regional Airport (KALW)

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

Clear

57°F

14°C

Humidity 71%
Wind Speed ESE 3 MPH
Barometer 30.03 in (1016.93 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 17 Sep 08:00 PM PDT
Extended Forecast for

Walla Walla WA

  • Tonight

    Tonight: A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 55. Southeast wind 3 to 6 mph. Chance of precipitation is 30%.

    Low: 55 °F

    Chance
    Showers

  • Friday

    Friday: Partly sunny, then gradually becoming sunny, with a high near 80. Southwest wind 5 to 7 mph becoming calm in the afternoon.

    High: 80 °F

    Becoming
    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 54. Light and variable wind.

    Low: 54 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 82. Light and variable wind.

    High: 82 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 54. Light and variable wind.

    Low: 54 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

Detailed Forecast

Tonight
A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 55. Southeast wind 3 to 6 mph. Chance of precipitation is 30%.
Friday
Partly sunny, then gradually becoming sunny, with a high near 80. Southwest wind 5 to 7 mph becoming calm in the afternoon.
Friday Night
Mostly clear, with a low around 54. Light and variable wind.
Saturday
Sunny, with a high near 82. Light and variable wind.
Saturday Night
Mostly clear, with a low around 54. Light and variable wind.
Sunday
Sunny, with a high near 86.
Sunday Night
Mostly clear, with a low around 56.
Monday
Sunny, with a high near 85.
Monday Night
Partly cloudy, with a low around 56.
Tuesday
Mostly sunny, with a high near 78.
Tuesday Night
Partly cloudy, with a low around 52.
Wednesday
Sunny, with a high near 76.
Wednesday Night
Partly cloudy, with a low around 52.
Thursday
Mostly sunny, with a high near 79.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Walla Walla WA
 46.06°N 118.35°W (Elev. 928 ft)
Last Update:
4:06 pm PDT Sep 17, 2026
Forecast Valid:
8pm PDT Sep 17, 2026-6pm PDT Sep 24, 2026
 
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