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

Heat the Southwest; Fire Weather in the Central U.S.; Kona Low Impacting Hawaii

A rare March heat wave is ongoing with much above-normal temperatures over the Southwest U.S. through this weekend. Periods of critical fire weather will persist from the central Rockies to the central and southern Plains through the weekend as gusty winds and low relative humidity continue. A Kona low will continue to bring several rounds of moderate to heavy rainfall to Hawaii through Sunday. Read More >

Hazardous Weather Conditions

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

4 Miles W Sunnyside WA

  • Today

    Today: Sunny, with a high near 65. Northwest wind around 8 mph.

    High: 65 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 30. West wind 3 to 8 mph.

    Low: 30 °F

    Mostly Clear

  • Sunday

    Sunday: Increasing clouds, with a high near 58. Calm wind.

    High: 58 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 35. Light and variable wind.

    Low: 35 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 60. Calm wind.

    High: 60 °F

    Partly Sunny

  • Monday Night

    Monday Night: Cloudy, with a low around 42.

    Low: 42 °F

    Cloudy

  • Tuesday

    Tuesday: Rain likely. Mostly cloudy, with a high near 60. Chance of precipitation is 60%.

    High: 60 °F

    Rain Likely

  • Tuesday Night

    Tuesday Night: A 30 percent chance of rain, mainly before 11pm. Mostly cloudy, with a low around 38.

    Low: 38 °F

    Chance Rain

  • Wednesday

    Wednesday: A 20 percent chance of rain. Mostly sunny, with a high near 60.

    High: 60 °F

    Slight Chance
    Rain

Detailed Forecast

Today
Sunny, with a high near 65. Northwest wind around 8 mph.
Tonight
Mostly clear, with a low around 30. West wind 3 to 8 mph.
Sunday
Increasing clouds, with a high near 58. Calm wind.
Sunday Night
Mostly cloudy, with a low around 35. Light and variable wind.
Monday
Partly sunny, with a high near 60. Calm wind.
Monday Night
Cloudy, with a low around 42.
Tuesday
Rain likely. Mostly cloudy, with a high near 60. Chance of precipitation is 60%.
Tuesday Night
A 30 percent chance of rain, mainly before 11pm. Mostly cloudy, with a low around 38.
Wednesday
A 20 percent chance of rain. Mostly sunny, with a high near 60.
Wednesday Night
Mostly clear, with a low around 31.
Thursday
Sunny, with a high near 56.
Thursday Night
Mostly clear, with a low around 32.
Friday
Sunny, with a high near 59.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles W Sunnyside WA
 46.33°N 120.1°W (Elev. 801 ft)
Last Update:
10:15 am PDT Mar 21, 2026
Forecast Valid:
11am PDT Mar 21, 2026-6pm PDT Mar 27, 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