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

Heat Persists Across the Central and Western U.S.; Fire Weather Concerns in the Rockies and High Plains

Record-breaking heat expected in the Central and Western U.S. for the next several days. Gusty winds and low relative humidity will create elevated to critical fire weather conditions over portions of the Rockies and High Plains Wednesday and Thursday. Rain and mountain snow are possible across the Pacific Northwest into the Rockies through Wednesday. 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

Prosser WA

  • Overnight

    Overnight: Partly cloudy, with a low around 41. West wind around 11 mph, with gusts as high as 18 mph.

    Low: 41 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 59. West wind 9 to 14 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 28 mph.

    High: 59 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 30. Southwest wind 8 to 18 mph, with gusts as high as 28 mph.

    Low: 30 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 55. Southwest wind around 7 mph.

    High: 55 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 32. South wind around 5 mph becoming north after midnight.

    Low: 32 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 60.

    High: 60 °F

    Mostly Sunny

  • Friday Night

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

    Low: 38 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 68.

    High: 68 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 41.

    Low: 41 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 41. West wind around 11 mph, with gusts as high as 18 mph.
Wednesday
Mostly sunny, with a high near 59. West wind 9 to 14 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 28 mph.
Wednesday Night
Partly cloudy, with a low around 30. Southwest wind 8 to 18 mph, with gusts as high as 28 mph.
Thursday
Sunny, with a high near 55. Southwest wind around 7 mph.
Thursday Night
Mostly clear, with a low around 32. South wind around 5 mph becoming north after midnight.
Friday
Mostly sunny, with a high near 60.
Friday Night
Partly cloudy, with a low around 38.
Saturday
Partly sunny, with a high near 68.
Saturday Night
Mostly cloudy, with a low around 41.
Sunday
Partly sunny, with a high near 68.
Sunday Night
Mostly cloudy, with a low around 42.
Monday
A slight chance of rain. Partly sunny, with a high near 60.
Monday Night
A chance of rain. Mostly cloudy, with a low around 37.
Tuesday
A chance of rain. Partly sunny, with a high near 57.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Prosser WA
 46.21°N 119.75°W (Elev. 741 ft)
Last Update:
2:30 am PDT Mar 25, 2026
Forecast Valid:
2am PDT Mar 25, 2026-6pm PDT Mar 31, 2026
 
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Additional Resources

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