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

Heavy Rain in the Southern U.S.; Active Weather Continues in Alaska

A storm system will bring heavy rainfall, thunderstorms, and flooding threats to portions of the Southern Plains today, the Lower Mississippi Valley Saturday, and the Southeast into the Mid-Atlantic on Sunday. Another Bering system will impact the Alaskan West Coast and Central Interior through the weekend bringing moderate to heavy snow, high winds, and/or some blizzard conditions. Read More >

Current conditions at

Sunnyside Municipal Airport (K1S5)

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

Partly Cloudy

45°F

7°C

Humidity 75%
Wind Speed N 0 MPH
Barometer 30.0 in (1015.92 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 13 Feb 02:15 PM PST
Extended Forecast for

Prosser WA

  • This Afternoon

    This Afternoon: A 30 percent chance of rain after 4pm. Cloudy, with a high near 47. South wind around 5 mph.

    High: 47 °F

    Chance Rain

  • Tonight

    Tonight: A 30 percent chance of rain, mainly before 10pm. Cloudy, with a low around 37. South wind around 5 mph.

    Low: 37 °F

    Chance Rain

  • Saturday

    Saturday: A 20 percent chance of rain after 10am. Cloudy, with a high near 49. South wind around 6 mph becoming west in the afternoon.

    High: 49 °F

    Slight Chance
    Rain

  • Saturday Night

    Saturday Night: A chance of rain before 1am, then a chance of rain and snow. Cloudy, with a low around 37. Light and variable wind. Chance of precipitation is 50%. Little or no snow accumulation expected.

    Low: 37 °F

    Chance Rain
    then Chance
    Rain/Snow

  • Sunday

    Sunday: A 20 percent chance of rain before 10am. Mostly cloudy, with a high near 49. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 49 °F

    Slight Chance
    Rain then
    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

  • Washington's Birthday

    Washington's Birthday: Rain likely. Mostly cloudy, with a high near 45. Chance of precipitation is 60%.

    High: 45 °F

    Rain Likely

  • Monday Night

    Monday Night: Rain likely. Mostly cloudy, with a low around 34. Chance of precipitation is 60%.

    Low: 34 °F

    Rain Likely

  • Tuesday

    Tuesday: A 40 percent chance of rain. Partly sunny, with a high near 46.

    High: 46 °F

    Chance Rain

Detailed Forecast

This Afternoon
A 30 percent chance of rain after 4pm. Cloudy, with a high near 47. South wind around 5 mph.
Tonight
A 30 percent chance of rain, mainly before 10pm. Cloudy, with a low around 37. South wind around 5 mph.
Saturday
A 20 percent chance of rain after 10am. Cloudy, with a high near 49. South wind around 6 mph becoming west in the afternoon.
Saturday Night
A chance of rain before 1am, then a chance of rain and snow. Cloudy, with a low around 37. Light and variable wind. Chance of precipitation is 50%. Little or no snow accumulation expected.
Sunday
A 20 percent chance of rain before 10am. Mostly cloudy, with a high near 49. Calm wind becoming northeast around 5 mph in the afternoon.
Sunday Night
Mostly cloudy, with a low around 34.
Washington's Birthday
Rain likely. Mostly cloudy, with a high near 45. Chance of precipitation is 60%.
Monday Night
Rain likely. Mostly cloudy, with a low around 34. Chance of precipitation is 60%.
Tuesday
A 40 percent chance of rain. Partly sunny, with a high near 46.
Tuesday Night
A chance of rain before 1am, then a slight chance of rain and snow. Mostly cloudy, with a low around 31.
Wednesday
A slight chance of rain and snow. Snow level 1300 feet rising to 1800 feet in the afternoon. Partly sunny, with a high near 45.
Wednesday Night
A slight chance of rain and snow. Snow level 1900 feet lowering to 1400 feet after midnight . Mostly cloudy, with a low around 30.
Thursday
A chance of rain and snow. Snow level 1100 feet rising to 1700 feet in the afternoon. Partly sunny, with a high near 46.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Prosser WA
 46.2°N 119.78°W (Elev. 646 ft)
Last Update:
1:30 pm PST Feb 13, 2026
Forecast Valid:
2pm PST Feb 13, 2026-6pm PST Feb 19, 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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation