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.

Clear

46°F

8°C

Humidity 44%
Wind Speed N 0 MPH
Barometer 29.68 in (1005.08 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 18 Feb 01:55 PM PST
Extended Forecast for

Prosser WA

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 45. South wind around 9 mph.

    High: 45 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 28. South wind around 6 mph becoming light and variable  in the evening.

    Low: 28 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 10 percent chance of rain after 4pm.  Snow level rising to 1100 feet in the afternoon. Mostly cloudy, with a high near 41. North wind 6 to 8 mph.

    High: 41 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Thursday Night

    Thursday Night: A slight chance of rain and snow before 10pm, then a slight chance of snow.  Mostly cloudy, with a low around 27. Northwest wind 3 to 6 mph.  Chance of precipitation is 20%.

    Low: 27 °F

    Slight Chance
    Rain/Snow
    then Slight
    Chance Snow

  • Friday

    Friday: Partly sunny, with a high near 44. Southwest wind 3 to 7 mph.

    High: 44 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 28.

    Low: 28 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 46.

    High: 46 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A slight chance of rain before 4am, then a chance of rain and snow.  Mostly cloudy, with a low around 31. Chance of precipitation is 30%.

    Low: 31 °F

    Slight Chance
    Rain then
    Chance
    Rain/Snow

  • Sunday

    Sunday: A chance of rain and snow before 10am, then a chance of rain.  Snow level 1400 feet rising to 2600 feet in the afternoon. Mostly cloudy, with a high near 49. Chance of precipitation is 40%.

    High: 49 °F

    Chance
    Rain/Snow
    then Chance
    Rain

Detailed Forecast

This Afternoon
Partly sunny, with a high near 45. South wind around 9 mph.
Tonight
Mostly cloudy, with a low around 28. South wind around 6 mph becoming light and variable in the evening.
Thursday
A 10 percent chance of rain after 4pm. Snow level rising to 1100 feet in the afternoon. Mostly cloudy, with a high near 41. North wind 6 to 8 mph.
Thursday Night
A slight chance of rain and snow before 10pm, then a slight chance of snow. Mostly cloudy, with a low around 27. Northwest wind 3 to 6 mph. Chance of precipitation is 20%.
Friday
Partly sunny, with a high near 44. Southwest wind 3 to 7 mph.
Friday Night
Partly cloudy, with a low around 28.
Saturday
Partly sunny, with a high near 46.
Saturday Night
A slight chance of rain before 4am, then a chance of rain and snow. Mostly cloudy, with a low around 31. Chance of precipitation is 30%.
Sunday
A chance of rain and snow before 10am, then a chance of rain. Snow level 1400 feet rising to 2600 feet in the afternoon. Mostly cloudy, with a high near 49. Chance of precipitation is 40%.
Sunday Night
Rain likely, mainly after 10pm. Mostly cloudy, with a low around 34.
Monday
Rain likely. Mostly cloudy, with a high near 51.
Monday Night
A chance of rain. Mostly cloudy, with a low around 34.
Tuesday
A chance of rain. Mostly cloudy, with a high near 51.
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ABOUT THIS FORECAST

 
Point Forecast:
Prosser WA
 46.2°N 119.78°W (Elev. 646 ft)
1:30 pm PST Feb 18, 2026
2pm PST Feb 18, 2026-6pm PST Feb 24, 2026
 
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Additional Resources

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