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 >

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

2 Miles ENE Sunnyside WA

  • Today

    Today: Areas of frost before 11am. Otherwise, increasing clouds, with a high near 58. Light and variable wind.

    High: 58 °F

    Areas Frost
    then
    Increasing
    Clouds

  • Tonight

    Tonight: Mostly cloudy, with a low around 37. Light and variable wind.

    Low: 37 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 62. Calm wind.

    High: 62 °F

    Partly Sunny

  • Monday Night

    Monday Night: Cloudy, with a low around 45. Light and variable wind.

    Low: 45 °F

    Cloudy

  • Tuesday

    Tuesday: Rain likely, mainly after 11am. Mostly cloudy, with a high near 61. Light southwest wind becoming south 6 to 11 mph in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 61 °F

    Rain Likely

  • Tuesday Night

    Tuesday Night: A 30 percent chance of rain before 11pm. Mostly cloudy, with a low around 40.

    Low: 40 °F

    Chance Rain
    then Partly
    Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of rain after 11am. Sunny, with a high near 59.

    High: 59 °F

    Slight Chance
    Rain

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 32.

    Low: 32 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 57.

    High: 57 °F

    Sunny

Detailed Forecast

Today
Areas of frost before 11am. Otherwise, increasing clouds, with a high near 58. Light and variable wind.
Tonight
Mostly cloudy, with a low around 37. Light and variable wind.
Monday
Partly sunny, with a high near 62. Calm wind.
Monday Night
Cloudy, with a low around 45. Light and variable wind.
Tuesday
Rain likely, mainly after 11am. Mostly cloudy, with a high near 61. Light southwest wind becoming south 6 to 11 mph in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
A 30 percent chance of rain before 11pm. Mostly cloudy, with a low around 40.
Wednesday
A 20 percent chance of rain after 11am. Sunny, with a high near 59.
Wednesday Night
Mostly clear, with a low around 32.
Thursday
Sunny, with a high near 57.
Thursday Night
Mostly clear, with a low around 33.
Friday
Sunny, with a high near 60.
Friday Night
Partly cloudy, with a low around 36.
Saturday
Mostly sunny, with a high near 64.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ENE Sunnyside WA
 46.33°N 119.97°W (Elev. 758 ft)
Last Update:
4:20 am PDT Mar 22, 2026
Forecast Valid:
6am PDT Mar 22, 2026-6pm PDT Mar 28, 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