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

  • Tonight

    Tonight: Increasing clouds, with a low around 43. Light northwest wind.

    Low: 43 °F

    Increasing
    Clouds

  • Friday

    Friday: Mostly cloudy, with a high near 70. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 70 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A 30 percent chance of rain.  Mostly cloudy, with a low around 47. South wind around 5 mph becoming calm  in the evening.

    Low: 47 °F

    Chance Rain

  • Saturday

    Saturday: A chance of rain, mainly between 11am and 2pm, then a chance of showers and thunderstorms after 2pm.  Partly sunny, with a high near 71. Calm wind becoming southwest around 6 mph in the afternoon.  Chance of precipitation is 30%.

    High: 71 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A 20 percent chance of rain before 11pm.  Mostly cloudy, with a low around 45. West wind 3 to 6 mph.

    Low: 45 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Sunday

    Sunday: A 20 percent chance of rain after 11am.  Partly sunny, with a high near 70.

    High: 70 °F

    Slight Chance
    Rain

  • Sunday Night

    Sunday Night: A 20 percent chance of rain before 11pm.  Mostly cloudy, with a low around 44.

    Low: 44 °F

    Slight 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 37.

    Low: 37 °F

    Partly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a low around 43. Light northwest wind.
Friday
Mostly cloudy, with a high near 70. Calm wind becoming northwest around 5 mph in the afternoon.
Friday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 47. South wind around 5 mph becoming calm in the evening.
Saturday
A chance of rain, mainly between 11am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 71. Calm wind becoming southwest around 6 mph in the afternoon. Chance of precipitation is 30%.
Saturday Night
A 20 percent chance of rain before 11pm. Mostly cloudy, with a low around 45. West wind 3 to 6 mph.
Sunday
A 20 percent chance of rain after 11am. Partly sunny, with a high near 70.
Sunday Night
A 20 percent chance of rain before 11pm. Mostly cloudy, with a low around 44.
Monday
Mostly sunny, with a high near 67.
Monday Night
Partly cloudy, with a low around 37.
Tuesday
Partly sunny, with a high near 61.
Tuesday Night
A slight chance of rain. Mostly cloudy, with a low around 39.
Wednesday
A slight chance of rain. Partly sunny, with a high near 59.
Wednesday Night
Partly cloudy, with a low around 34.
Thursday
Mostly sunny, with a high near 59.
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ABOUT THIS FORECAST

 
Point Forecast:
Sunnyside WA
 46.32°N 120°W (Elev. 748 ft)
3:01 pm PDT Apr 9, 2026
8pm PDT Apr 9, 2026-6pm PDT Apr 16, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database