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

A Couple of Fast Moving Storms Affecting Areas Along and East of the Rockies

A couple of storm systems will impact travel conditions through the first half of this weekend. Heavy snow from the mountains of the West will move into the upper Midwest and upper Great Lakes through tonight. Record warmth and Gulf moisture along and east of the Mississippi River will fuel severe thunderstorms, heavy rainfall, fog for the Tennessee Valley and deep South on Friday into Saturday. Read More >

Current conditions at

Sunnyside Municipal Airport (K1S5)

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

Clear

29°F

-2°C

Humidity 88%
Wind Speed N 0 MPH
Barometer 29.92 in (1013.21 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 08 Jan 04:15 AM PST
Extended Forecast for

Prosser WA

  • Today

    Today: Mostly sunny, with a high near 46. Southwest wind 9 to 14 mph, with gusts as high as 22 mph.

    High: 46 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 34. Southwest wind 6 to 8 mph.

    Low: 34 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 49. Southwest wind around 6 mph.

    High: 49 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 30. Calm wind.

    Low: 30 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 42. Calm wind.

    High: 42 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 30.

    Low: 30 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 45.

    High: 45 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: A 10 percent chance of rain after 4am. Mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Monday

    Monday: A 20 percent chance of rain before 10am. Mostly cloudy, with a high near 52.

    High: 52 °F

    Slight Chance
    Rain then
    Mostly Cloudy

Detailed Forecast

Today
Mostly sunny, with a high near 46. Southwest wind 9 to 14 mph, with gusts as high as 22 mph.
Tonight
Mostly cloudy, with a low around 34. Southwest wind 6 to 8 mph.
Friday
Partly sunny, with a high near 49. Southwest wind around 6 mph.
Friday Night
Mostly cloudy, with a low around 30. Calm wind.
Saturday
Mostly cloudy, with a high near 42. Calm wind.
Saturday Night
Mostly cloudy, with a low around 30.
Sunday
Mostly cloudy, with a high near 45.
Sunday Night
A 10 percent chance of rain after 4am. Mostly cloudy, with a low around 33.
Monday
A 20 percent chance of rain before 10am. Mostly cloudy, with a high near 52.
Monday Night
Mostly cloudy, with a low around 37.
Tuesday
Partly sunny, with a high near 51.
Tuesday Night
Mostly cloudy, with a low around 34.
Wednesday
Mostly sunny, with a high near 49.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Prosser WA
 46.22°N 119.79°W (Elev. 715 ft)
Last Update:
3:15 am PST Jan 8, 2026
Forecast Valid:
4am PST Jan 8, 2026-6pm PST Jan 14, 2026
 
Forecast Discussion
 
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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

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation