Tracking Winter Weather and Frigid Temperatures Through This Weekend

A clipper storm will move across the Great Lakes through this weekend with periods of light snow, gusty winds, and lake effect snow bands which could make for hazardous travel at times. A frigid airmass will spread eastward behind this storm into the Midwest and Eastern U.S. through the weekend. Read More >

Current conditions at

Sunnyside Municipal Airport (K1S5)

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

Overcast

35°F

2°C

Humidity 88%
Wind Speed N 0 MPH
Barometer 30.59 in (1035.9 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 16 Jan 07:15 PM PST
Extended Forecast for

Prosser WA

Air Stagnation Advisory January 16, 07:25pm until January 20, 04:00pm
Click here for hazard details and duration
Air Stagnation Advisory
  •  
    Air Stagnation Advisory January 16, 07:25pm until January 20, 04:00pm

    NOW until 4:00pm Tue

    Air Stagnation Advisory

  • Tonight

    Low: 28 °F

    Patchy
    Freezing Fog

  • Saturday

    Saturday: Patchy freezing fog. Cloudy, with a high near 40. Calm wind.

    High: 40 °F

    Patchy
    Freezing Fog

  • Saturday Night

    Saturday Night: Patchy freezing fog. Cloudy, with a low around 27. Calm wind.

    Low: 27 °F

    Patchy
    Freezing Fog

  • Sunday

    Sunday: Patchy freezing fog before 10am. Cloudy, then gradually becoming mostly sunny, with a high near 40. Calm wind.

    High: 40 °F

    Patchy
    Freezing Fog
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 25. Calm wind.

    Low: 25 °F

    Partly Cloudy

  • M.L.King Day

    M.L.King Day: Mostly sunny, with a high near 39.

    High: 39 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 24.

    Low: 24 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 39.

    High: 39 °F

    Partly Sunny

Detailed Forecast

Tonight
Patchy freezing fog. Cloudy, with a low around 28. Calm wind.
Saturday
Patchy freezing fog. Cloudy, with a high near 40. Calm wind.
Saturday Night
Patchy freezing fog. Cloudy, with a low around 27. Calm wind.
Sunday
Patchy freezing fog before 10am. Cloudy, then gradually becoming mostly sunny, with a high near 40. Calm wind.
Sunday Night
Partly cloudy, with a low around 25. Calm wind.
M.L.King Day
Mostly sunny, with a high near 39.
Monday Night
Partly cloudy, with a low around 24.
Tuesday
Partly sunny, with a high near 39.
Tuesday Night
Mostly cloudy, with a low around 24.
Wednesday
Partly sunny, with a high near 39.
Wednesday Night
Partly cloudy, with a low around 24.
Thursday
Partly sunny, with a high near 40.
Thursday Night
Partly cloudy, with a low around 24.
Friday
Mostly sunny, with a high near 42.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Prosser WA
 46.22°N 119.79°W (Elev. 715 ft)
4:55 pm PST Jan 16, 2026
7pm PST Jan 16, 2026-6pm PST Jan 23, 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