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Significant Severe Weather in the Upper Midwest; Blizzard Conditions in the Cascades; Heavy Rain and Thunderstorms in Hawaii

Significant severe thunderstorms, including the risk for strong to intense tornadoes, are expected across the Upper Midwest this afternoon and evening. An atmospheric river will bring blizzard conditions to the northern Cascades. A powerful Kona storm is expected to impact Hawaii today into Saturday, bringing heavy rainfall and strong winds. Read More >

Hazardous Weather Conditions

Current conditions at

Sunnyside Municipal Airport (K1S5)

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

Clear

23°F

-5°C

Humidity 87%
Wind Speed N 0 MPH
Barometer 30.11 in (1019.64 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Last update 10 Mar 07:35 AM PDT
Extended Forecast for

Prosser WA

High Wind Watch March 11, 05:00pm until March 12, 11:00am
Click here for hazard details and duration
High Wind Watch

  • This Afternoon

    This Afternoon: A 30 percent chance of rain after 5pm. Snow level 1000 feet rising to 1700 feet. Mostly sunny, with a high near 50. Southwest wind around 9 mph.

    High: 50 °F

    Chance Rain

  • Tonight

    Tonight: A 30 percent chance of rain, mainly before 8pm. Mostly cloudy, with a low around 36. Southwest wind 10 to 14 mph, with gusts as high as 21 mph.

    Low: 36 °F

    Chance Rain

  • Wednesday

    Wednesday: A 30 percent chance of rain, mainly after 11am. Mostly cloudy, with a high near 57. Southwest wind 9 to 14 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 34 mph.

    High: 57 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 46. Breezy, with a southwest wind 22 to 24 mph, with gusts as high as 45 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 46 °F

    Chance Rain
    and Breezy

  • Thursday

    Thursday: Rain likely. Mostly cloudy, with a high near 59. Breezy, with a west wind 18 to 22 mph, with gusts as high as 31 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 59 °F

    Rain Likely
    and Breezy

  • Thursday Night

    Thursday Night: Rain likely. Mostly cloudy, with a low around 47. Chance of precipitation is 70%.

    Low: 47 °F

    Rain Likely

  • Friday

    Friday: Rain likely. Mostly cloudy, with a high near 60. Chance of precipitation is 60%.

    High: 60 °F

    Rain Likely

  • Friday Night

    Friday Night: Rain likely, mainly before 11pm. Mostly cloudy, with a low around 36. Chance of precipitation is 70%.

    Low: 36 °F

    Rain Likely
    then Chance
    Rain

  • Saturday

    Saturday: Mostly sunny, with a high near 56.

    High: 56 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A 30 percent chance of rain after 5pm. Snow level 1000 feet rising to 1700 feet. Mostly sunny, with a high near 50. Southwest wind around 9 mph.
Tonight
A 30 percent chance of rain, mainly before 8pm. Mostly cloudy, with a low around 36. Southwest wind 10 to 14 mph, with gusts as high as 21 mph.
Wednesday
A 30 percent chance of rain, mainly after 11am. Mostly cloudy, with a high near 57. Southwest wind 9 to 14 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 34 mph.
Wednesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 46. Breezy, with a southwest wind 22 to 24 mph, with gusts as high as 45 mph. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Rain likely. Mostly cloudy, with a high near 59. Breezy, with a west wind 18 to 22 mph, with gusts as high as 31 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Rain likely. Mostly cloudy, with a low around 47. Chance of precipitation is 70%.
Friday
Rain likely. Mostly cloudy, with a high near 60. Chance of precipitation is 60%.
Friday Night
Rain likely, mainly before 11pm. Mostly cloudy, with a low around 36. Chance of precipitation is 70%.
Saturday
Mostly sunny, with a high near 56.
Saturday Night
Mostly cloudy, with a low around 34.
Sunday
A slight chance of rain and snow. Snow level 1200 feet rising to 2400 feet in the afternoon. Mostly cloudy, with a high near 54.
Sunday Night
A slight chance of rain. Mostly cloudy, with a low around 40.
Monday
A slight chance of rain. Mostly cloudy, with a high near 66.
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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:
1:07 pm PDT Mar 10, 2026
Forecast Valid:
1pm PDT Mar 10, 2026-6pm PDT Mar 16, 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