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.

Overcast

46°F

8°C

Humidity 52%
Wind Speed SSW 9 MPH
Barometer 30.18 in (1022.01 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 08 Jan 03:55 PM PST
Extended Forecast for

Prosser WA

  • Tonight

    Tonight: Mostly cloudy, with a low around 33. South wind 7 to 11 mph, with gusts as high as 20 mph.

    Low: 33 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 50. South wind around 6 mph.

    High: 50 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 31. Calm wind.

    Low: 31 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 43. Light east wind.

    High: 43 °F

    Mostly Cloudy

  • Saturday Night

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

    Low: 30 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 45.

    High: 45 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: A 20 percent chance of rain. Mostly cloudy, with a low around 34.

    Low: 34 °F

    Slight Chance
    Rain

  • Monday

    Monday: Mostly cloudy, with a high near 52.

    High: 52 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 37.

    Low: 37 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 33. South wind 7 to 11 mph, with gusts as high as 20 mph.
Friday
Mostly sunny, with a high near 50. South wind around 6 mph.
Friday Night
Mostly cloudy, with a low around 31. Calm wind.
Saturday
Mostly cloudy, with a high near 43. Light east wind.
Saturday Night
Mostly cloudy, with a low around 30. Calm wind.
Sunday
Mostly cloudy, with a high near 45.
Sunday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 34.
Monday
Mostly cloudy, with a high near 52.
Monday Night
Mostly cloudy, with a low around 37.
Tuesday
Mostly cloudy, with a high near 51.
Tuesday Night
Partly cloudy, with a low around 33.
Wednesday
Partly sunny, with a high near 49.
Wednesday Night
Partly cloudy, with a low around 32.
Thursday
Mostly sunny, with a high near 48.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Prosser WA
 46.22°N 119.79°W (Elev. 715 ft)
Last Update:
3:50 pm PST Jan 8, 2026
Forecast Valid:
4pm PST Jan 8, 2026-6pm PST Jan 15, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation