Severe Thunderstorm, Flooding, and Winter Weather Threats on Tuesday

Scattered severe thunderstorms are forecast Tuesday from the southern Plains into the southern Great Lakes vicinity. Thunderstorms may also produce heavy to excessive rain that could pose a flooding threat from central Texas into southern Oklahoma and northern Missouri into southern Michigan. A heavy wintry mix is forecast for the Great Lakes into northern Maine. Read More >

Current conditions at

Sunnyside Municipal Airport (K1S5)

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

Clear

30°F

-1°C

Humidity 81%
Wind Speed N 0 MPH
Barometer 30.02 in (1016.59 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 09 Mar 11:15 PM PDT
Extended Forecast for

Prosser WA

  • Tonight

    Tonight: Partly cloudy, with a low around 29. Southwest wind 7 to 9 mph.

    Low: 29 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 50. West wind 7 to 14 mph, with gusts as high as 21 mph.

    High: 50 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of rain, mainly between 8pm and 11pm.  Mostly cloudy, with a low around 35. Southwest wind 11 to 15 mph, with gusts as high as 22 mph.

    Low: 35 °F

    Chance Rain

  • Wednesday

    Wednesday: A 30 percent chance of rain, mainly after 11am.  Mostly cloudy, with a high near 57. Southwest wind 10 to 18 mph, with gusts as high as 28 mph.

    High: 57 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: A 50 percent chance of rain.  Mostly cloudy, with a low around 46. Southwest wind 18 to 21 mph, with gusts as high as 30 mph.  New precipitation amounts of less than a tenth of an inch possible.

    Low: 46 °F

    Chance Rain

  • Thursday

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

    High: 60 °F

    Rain Likely

  • Thursday Night

    Thursday Night: Rain likely, mainly before 11pm.  Mostly cloudy, with a low around 47. Chance of precipitation is 60%.

    Low: 47 °F

    Rain Likely

  • Friday

    Friday: A 50 percent chance of rain.  Mostly cloudy, with a high near 62.

    High: 62 °F

    Chance Rain

  • Friday Night

    Friday Night: Rain likely.  Mostly cloudy, with a low around 42. Chance of precipitation is 60%.

    Low: 42 °F

    Rain Likely

Detailed Forecast

Tonight
Partly cloudy, with a low around 29. Southwest wind 7 to 9 mph.
Tuesday
Mostly sunny, with a high near 50. West wind 7 to 14 mph, with gusts as high as 21 mph.
Tuesday Night
A 30 percent chance of rain, mainly between 8pm and 11pm. Mostly cloudy, with a low around 35. Southwest wind 11 to 15 mph, with gusts as high as 22 mph.
Wednesday
A 30 percent chance of rain, mainly after 11am. Mostly cloudy, with a high near 57. Southwest wind 10 to 18 mph, with gusts as high as 28 mph.
Wednesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 46. Southwest wind 18 to 21 mph, with gusts as high as 30 mph. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Rain likely. Mostly cloudy, with a high near 60. Chance of precipitation is 60%.
Thursday Night
Rain likely, mainly before 11pm. Mostly cloudy, with a low around 47. Chance of precipitation is 60%.
Friday
A 50 percent chance of rain. Mostly cloudy, with a high near 62.
Friday Night
Rain likely. Mostly cloudy, with a low around 42. Chance of precipitation is 60%.
Saturday
A chance of rain before 11am. Mostly sunny, with a high near 58.
Saturday Night
A slight chance of rain. Mostly cloudy, with a low around 39.
Sunday
A chance of rain and snow. Cloudy, with a high near 57.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 43.
Monday
A chance of rain. Mostly cloudy, with a high near 63.
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ABOUT THIS FORECAST

 
Point Forecast:
Prosser WA
 46.21°N 119.75°W (Elev. 741 ft)
10:37 pm PDT Mar 9, 2026
11pm PDT Mar 9, 2026-6pm PDT Mar 16, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database