Critical Fire Weather in the High Plains and Midwest; Heavy Snow in the Western Mountains and Northern Plains

Gusty winds and low relative humidity will bring critical fire weather to the central/southern High Plains and portions of the Midwest. Two Pacific storms will continue to bring heavy mountain snow and gusty winds to the western U.S. through Thursday. A swath of wintry weather, including heavy snow and a wintry mix, is expected from the Northern Plains to New England. Read More >

Current conditions at

Sunnyside Municipal Airport (K1S5)

Lat: 46.3271°NLon: 119.9704°WElev: 768.0ft.

Partly Cloudy

25°F

-4°C

Humidity 93%
Wind Speed N 0 MPH
Barometer 29.63 in (1003.39 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Last update 18 Feb 07:15 AM PST
Extended Forecast for

11 Miles SSW Mattawa WA

  • Today

    Today: A 10 percent chance of snow showers after 4pm.  Mostly sunny, with a high near 36. Southwest wind 11 to 14 mph, with gusts as high as 21 mph.

    High: 36 °F

    Mostly Sunny
    then Slight
    Chance Snow
    Showers

  • Tonight

    Tonight: A 20 percent chance of snow showers before 10pm.  Mostly cloudy, with a low around 24. West wind around 9 mph becoming north after midnight.

    Low: 24 °F

    Slight Chance
    Snow Showers
    then Mostly
    Cloudy

  • Thursday

    Thursday: A 20 percent chance of snow showers before 10am.  Mostly cloudy, with a high near 31. North wind around 14 mph, with gusts as high as 22 mph.

    High: 31 °F

    Slight Chance
    Snow Showers
    then Mostly
    Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 25. Northwest wind around 8 mph.

    Low: 25 °F

    Decreasing
    Clouds

  • Friday

    Friday: Mostly sunny, with a high near 34. Southwest wind 6 to 9 mph.

    High: 34 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 26.

    Low: 26 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 35.

    High: 35 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A 30 percent chance of snow.  Mostly cloudy, with a low around 29.

    Low: 29 °F

    Chance Snow

  • Sunday

    Sunday: A 40 percent chance of snow.  Mostly cloudy, with a high near 38.

    High: 38 °F

    Chance Snow

Detailed Forecast

Today
A 10 percent chance of snow showers after 4pm. Mostly sunny, with a high near 36. Southwest wind 11 to 14 mph, with gusts as high as 21 mph.
Tonight
A 20 percent chance of snow showers before 10pm. Mostly cloudy, with a low around 24. West wind around 9 mph becoming north after midnight.
Thursday
A 20 percent chance of snow showers before 10am. Mostly cloudy, with a high near 31. North wind around 14 mph, with gusts as high as 22 mph.
Thursday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 25. Northwest wind around 8 mph.
Friday
Mostly sunny, with a high near 34. Southwest wind 6 to 9 mph.
Friday Night
Mostly cloudy, with a low around 26.
Saturday
Mostly cloudy, with a high near 35.
Saturday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 29.
Sunday
A 40 percent chance of snow. Mostly cloudy, with a high near 38.
Sunday Night
Snow likely. Mostly cloudy, with a low around 32.
Monday
Rain and snow likely. Mostly cloudy, with a high near 40.
Monday Night
A chance of rain and snow. Mostly cloudy, with a low around 31.
Tuesday
A chance of snow. Partly sunny, with a high near 41.
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles SSW Mattawa WA
 46.59°N 119.98°W (Elev. 3100 ft)
4:21 am PST Feb 18, 2026
7am PST Feb 18, 2026-6pm PST Feb 24, 2026
 
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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