Major Winter Storm in the North-Central U.S.; Severe Weather from the Mid-South to Ohio Valley

A major winter storm will bring a swath of heavy snowfall, strong winds, blizzard conditions and freezing rain to the Northern Plains into the Great Lakes region. A line of storms will be capable of producing widespread damaging winds, tornadoes, and some large hail from the Mid-south to the Ohio Valley and the Southeast. Critical fire weather concerns shift to the southern Rockies and Plains. Read More >

Current conditions at

Sunnyside Municipal Airport (K1S5)

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

Clear

N/A

Humidity 87%
Wind Speed N 0 MPH
Barometer NA
Dewpoint N/A
Visibility 10.00 mi
Last update 10 Mar 07:35 AM PDT
Extended Forecast for

Prosser WA

  • Today

    Today: Partly sunny, with a high near 51. Light east wind.

    High: 51 °F

    Partly Sunny

  • Tonight

    Tonight: A 20 percent chance of rain before 11pm.  Mostly cloudy, with a low around 38. Light southeast wind.

    Low: 38 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 67. Calm wind becoming southwest 5 to 8 mph in the afternoon.

    High: 67 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 49. Southwest wind 7 to 10 mph, with gusts as high as 18 mph.

    Low: 49 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 70. Southwest wind 9 to 14 mph, with gusts as high as 22 mph.

    High: 70 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A 20 percent chance of rain before 11pm.  Mostly cloudy, with a low around 50.

    Low: 50 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 69.

    High: 69 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 50.

    Low: 50 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 72.

    High: 72 °F

    Mostly Cloudy

Detailed Forecast

Today
Partly sunny, with a high near 51. Light east wind.
Tonight
A 20 percent chance of rain before 11pm. Mostly cloudy, with a low around 38. Light southeast wind.
Monday
Mostly cloudy, with a high near 67. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Monday Night
Mostly cloudy, with a low around 49. Southwest wind 7 to 10 mph, with gusts as high as 18 mph.
Tuesday
Mostly cloudy, with a high near 70. Southwest wind 9 to 14 mph, with gusts as high as 22 mph.
Tuesday Night
A 20 percent chance of rain before 11pm. Mostly cloudy, with a low around 50.
Wednesday
Mostly cloudy, with a high near 69.
Wednesday Night
Mostly cloudy, with a low around 50.
Thursday
Mostly cloudy, with a high near 72.
Thursday Night
Mostly cloudy, with a low around 49.
Friday
Partly sunny, with a high near 74.
Friday Night
Mostly cloudy, with a low around 48.
Saturday
Mostly cloudy, with a high near 70.
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ABOUT THIS FORECAST

 
Point Forecast:
Prosser WA
 46.22°N 119.79°W (Elev. 715 ft)
10:27 am PDT Mar 15, 2026
11am PDT Mar 15, 2026-6pm PDT Mar 21, 2026
 
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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