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

Excessive Rainfall Possible This Weekend; October Heat Wave in California

A slow moving front will be the focus area for heavy to excessive rainfall and a threat for flash/urban flooding across the northern Gulf Coast and Southeast U.S. through this weekend. Abnormally hot, potentially record-breaking, temperatures will impact southern California and stretch north toward the Bay Area and Central Valley into next week. Read More >

Current conditions at

Sunnyside Municipal Airport (K1S5)

Lat: 46.3271°NLon: 119.9704°WElev: 768.0ft.

Clear

57°F

14°C

Humidity 70%
Wind Speed N 0 MPH
Barometer 30.06 in (1017.95 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Last update 02 Oct 09:35 AM PDT
Extended Forecast for

Grandview WA

  • Today

    Today: Sunny, with a high near 80. Calm wind.

    High: 80 °F

    Sunny

  • Tonight

    Tonight: Patchy fog after 2am. Otherwise, mostly clear, with a low around 48. Calm wind.

    Low: 48 °F

    Partly Cloudy
    then Patchy
    Fog

  • Saturday

    Saturday: Sunny, with a high near 79. Calm wind.

    High: 79 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 48. Calm wind.

    Low: 48 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 81. Calm wind.

    High: 81 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 49.

    Low: 49 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 47.

    Low: 47 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 80. Calm wind.
Tonight
Patchy fog after 2am. Otherwise, mostly clear, with a low around 48. Calm wind.
Saturday
Sunny, with a high near 79. Calm wind.
Saturday Night
Clear, with a low around 48. Calm wind.
Sunday
Sunny, with a high near 81. Calm wind.
Sunday Night
Partly cloudy, with a low around 49.
Monday
Sunny, with a high near 84.
Monday Night
Partly cloudy, with a low around 47.
Tuesday
Sunny, with a high near 77.
Tuesday Night
Mostly clear, with a low around 46.
Wednesday
Sunny, with a high near 78.
Wednesday Night
Mostly clear, with a low around 46.
Thursday
Sunny, with a high near 79.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grandview WA
 46.25°N 119.89°W (Elev. 827 ft)
Last Update:
6:36 am PDT Oct 2, 2026
Forecast Valid:
9am PDT Oct 2, 2026-6pm PDT Oct 8, 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