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

Critical Fire Weather in the High Plains; Heat Continues in the West

Critical fire weather conditions will persist in the central High Plains through Friday as gusty winds and dry conditions continue. The heat wave across the West and Southwest will continue to intensify through the week, with daily and monthly record highs expected to be broken. 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

11 Miles SSW Mattawa WA

  • Tonight

    Tonight: Cloudy, with a low around 51. Southwest wind around 16 mph, with gusts as high as 23 mph.

    Low: 51 °F

    Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 65. Breezy, with a southwest wind 14 to 23 mph, with gusts as high as 34 mph.

    High: 65 °F

    Mostly Cloudy
    then Partly
    Sunny and
    Breezy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 51. Breezy, with a southwest wind 15 to 23 mph, with gusts as high as 34 mph.

    Low: 51 °F

    Mostly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Friday

    Friday: A 20 percent chance of rain. Partly sunny, with a high near 61. Breezy, with a southwest wind 15 to 25 mph, with gusts as high as 37 mph.

    High: 61 °F

    Slight Chance
    Rain and
    Breezy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 39. Breezy, with a west wind 16 to 26 mph, with gusts as high as 38 mph.

    Low: 39 °F

    Mostly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 49.

    High: 49 °F

    Mostly Sunny

  • Saturday Night

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

    Low: 32 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 49.

    High: 49 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 35.

    Low: 35 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Cloudy, with a low around 51. Southwest wind around 16 mph, with gusts as high as 23 mph.
Thursday
Mostly cloudy, with a high near 65. Breezy, with a southwest wind 14 to 23 mph, with gusts as high as 34 mph.
Thursday Night
Mostly cloudy, with a low around 51. Breezy, with a southwest wind 15 to 23 mph, with gusts as high as 34 mph.
Friday
A 20 percent chance of rain. Partly sunny, with a high near 61. Breezy, with a southwest wind 15 to 25 mph, with gusts as high as 37 mph.
Friday Night
Mostly cloudy, with a low around 39. Breezy, with a west wind 16 to 26 mph, with gusts as high as 38 mph.
Saturday
Mostly sunny, with a high near 49.
Saturday Night
Mostly clear, with a low around 32.
Sunday
Sunny, with a high near 49.
Sunday Night
Mostly cloudy, with a low around 35.
Monday
Partly sunny, with a high near 49.
Monday Night
A chance of snow. Mostly cloudy, with a low around 40.
Tuesday
A chance of rain and snow. Mostly cloudy, with a high near 49.
Tuesday Night
A chance of rain and snow. Mostly cloudy, with a low around 37. Breezy.
Wednesday
A slight chance of rain and snow. Snow level 4400 feet lowering to 3500 feet. Mostly sunny, with a high near 48. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
11 Miles SSW Mattawa WA
 46.59°N 119.98°W (Elev. 3100 ft)
Last Update:
10:15 pm PDT Mar 18, 2026
Forecast Valid:
10pm PDT Mar 18, 2026-6pm PDT Mar 25, 2026
 
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Additional Resources

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Chance of Precipitation