Lake Effect Snow in the Lower Great Lakes; Unsettled Pattern in the Pacific Northwest

Lake-effect snow will continue downwind of Lakes Erie and Ontario through Friday. Lake Effect Snow Warnings have been issued. In the Western U.S., rain and higher elevation snow will continue over the Great Basin through Friday. A front will move over the Pacific Northwest this afternoon and produce light rain and higher elevation snow over the Cascades through Saturday. Read More >

Current conditions at

Sunnyside Municipal Airport (K1S5)

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

Clear

35°F

2°C

Humidity 87%
Wind Speed N 0 MPH
Barometer 30.29 in (1025.74 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 12 Feb 09:55 AM PST
Extended Forecast for

Prosser WA

Dense Fog Advisory February 12, 10:13am until February 12, 01:00pm
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory February 12, 10:13am until February 12, 01:00pm

    NOW until 1:00pm Thu

    Dense Fog Advisory

  • Today

    High: 48 °F

    Mostly Cloudy

  • Tonight

    Tonight: Cloudy during the early evening, then gradual clearing, with a low around 31. Light southwest wind.

    Low: 31 °F

    Gradual
    Clearing

  • Friday

    Friday: Mostly cloudy, with a high near 49. Southwest wind 3 to 6 mph.

    High: 49 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A 20 percent chance of rain before 10pm.  Mostly cloudy, with a low around 35. Southwest wind around 6 mph.

    Low: 35 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 49. West wind around 6 mph.

    High: 49 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A 50 percent chance of rain, mainly before 4am.  Cloudy, with a low around 36.

    Low: 36 °F

    Chance Rain

  • Sunday

    Sunday: A 20 percent chance of rain before 10am.  Mostly cloudy, with a high near 49.

    High: 49 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy

Detailed Forecast

Today
Mostly cloudy, with a high near 48. South wind 3 to 5 mph.
Tonight
Cloudy during the early evening, then gradual clearing, with a low around 31. Light southwest wind.
Friday
Mostly cloudy, with a high near 49. Southwest wind 3 to 6 mph.
Friday Night
A 20 percent chance of rain before 10pm. Mostly cloudy, with a low around 35. Southwest wind around 6 mph.
Saturday
Mostly cloudy, with a high near 49. West wind around 6 mph.
Saturday Night
A 50 percent chance of rain, mainly before 4am. Cloudy, with a low around 36.
Sunday
A 20 percent chance of rain before 10am. Mostly cloudy, with a high near 49.
Sunday Night
Mostly cloudy, with a low around 33.
Washington's Birthday
A slight chance of rain and snow between 10am and 1pm, then a slight chance of rain after 1pm. Partly sunny, with a high near 47. Chance of precipitation is 20%.
Monday Night
A chance of rain. Mostly cloudy, with a low around 34.
Tuesday
A chance of rain and snow. Mostly cloudy, with a high near 48.
Tuesday Night
A chance of rain and snow. Mostly cloudy, with a low around 35.
Wednesday
A chance of rain and snow. Snow level 1500 feet rising to 2100 feet in the afternoon. Mostly cloudy, with a high near 50.
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ABOUT THIS FORECAST

 
Point Forecast:
Prosser WA
 46.21°N 119.75°W (Elev. 741 ft)
9:46 am PST Feb 12, 2026
10am PST Feb 12, 2026-6pm PST Feb 18, 2026
 
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Additional Resources

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