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.

Partly Cloudy

45°F

7°C

Humidity 45%
Wind Speed SW 16 MPH
Barometer 29.99 in (1015.58 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 09 Mar 06:55 PM PDT
Extended Forecast for

Prosser WA

  • Tonight

    Tonight: Partly cloudy, with a low around 29. Southwest wind 6 to 13 mph, with gusts as high as 22 mph.

    Low: 29 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 50. West wind 5 to 13 mph, with gusts as high as 20 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 8 to 11 mph, with gusts as high as 21 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 7 to 17 mph, with gusts as high as 26 mph.

    High: 57 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: Rain likely, mainly before 11pm.  Mostly cloudy, with a low around 46. Southwest wind 14 to 17 mph, with gusts as high as 28 mph.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 46 °F

    Rain Likely

  • 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 6 to 13 mph, with gusts as high as 22 mph.
Tuesday
Mostly sunny, with a high near 50. West wind 5 to 13 mph, with gusts as high as 20 mph.
Tuesday Night
A 30 percent chance of rain, mainly between 8pm and 11pm. Mostly cloudy, with a low around 35. Southwest wind 8 to 11 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 7 to 17 mph, with gusts as high as 26 mph.
Wednesday Night
Rain likely, mainly before 11pm. Mostly cloudy, with a low around 46. Southwest wind 14 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. 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 57.
Saturday Night
A slight chance of rain. Mostly cloudy, with a low around 38.
Sunday
A chance of rain and snow. Cloudy, with a high near 56.
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
 46.22°N 119.79°W (Elev. 715 ft)
5:22 pm PDT Mar 9, 2026
7pm PDT Mar 9, 2026-6pm PDT Mar 16, 2026
 
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Additional Resources

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Hourly Weather Forecast

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