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

Sunnyside Municipal Airport (K1S5)

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

Clear

N/A

Humidity 87%
Wind Speed N 0 MPH
Barometer NA
Dewpoint N/A
Visibility 10.00 mi
Last update 10 Mar 07:35 AM PDT
Extended Forecast for

Sunnyside WA

  • Today

    Today: A 10 percent chance of rain after 5pm. Increasing clouds, with a high near 70. Northeast wind 3 to 5 mph.

    High: 70 °F

    Slight Chance
    Rain

  • Tonight

    Tonight: A 40 percent chance of rain, mainly after 2am. Mostly cloudy, with a low around 46. South wind around 5 mph becoming calm in the evening.

    Low: 46 °F

    Chance Rain

  • Saturday

    Saturday: A 50 percent chance of rain, mainly after 11am. Partly sunny, with a high near 70. Calm wind becoming west 5 to 7 mph in the afternoon.

    High: 70 °F

    Chance Rain

  • Saturday Night

    Saturday Night: A 20 percent chance of rain before 11pm. Partly cloudy, with a low around 42. West wind 3 to 7 mph.

    Low: 42 °F

    Slight Chance
    Rain then
    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of rain after 11am. Partly sunny, with a high near 69. Calm wind becoming west around 5 mph in the afternoon.

    High: 69 °F

    Slight Chance
    Rain

  • Sunday Night

    Sunday Night: A 30 percent chance of rain before 11pm. Mostly cloudy, with a low around 43.

    Low: 43 °F

    Chance Rain
    then Partly
    Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 67.

    High: 67 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 60.

    High: 60 °F

    Partly Sunny

Detailed Forecast

Today
A 10 percent chance of rain after 5pm. Increasing clouds, with a high near 70. Northeast wind 3 to 5 mph.
Tonight
A 40 percent chance of rain, mainly after 2am. Mostly cloudy, with a low around 46. South wind around 5 mph becoming calm in the evening.
Saturday
A 50 percent chance of rain, mainly after 11am. Partly sunny, with a high near 70. Calm wind becoming west 5 to 7 mph in the afternoon.
Saturday Night
A 20 percent chance of rain before 11pm. Partly cloudy, with a low around 42. West wind 3 to 7 mph.
Sunday
A 20 percent chance of rain after 11am. Partly sunny, with a high near 69. Calm wind becoming west around 5 mph in the afternoon.
Sunday Night
A 30 percent chance of rain before 11pm. Mostly cloudy, with a low around 43.
Monday
Mostly sunny, with a high near 67.
Monday Night
Partly cloudy, with a low around 38.
Tuesday
Partly sunny, with a high near 60.
Tuesday Night
A slight chance of rain. Mostly cloudy, with a low around 39.
Wednesday
Mostly sunny, with a high near 58.
Wednesday Night
Partly cloudy, with a low around 33.
Thursday
Mostly sunny, with a high near 60.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sunnyside WA
 46.32°N 120°W (Elev. 748 ft)
Last Update:
10:12 am PDT Apr 10, 2026
Forecast Valid:
11am PDT Apr 10, 2026-6pm PDT Apr 16, 2026
 
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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