Tracking a Winter Storm; Unusual Early-Season Heat Wave in the Southwest

A major winter storm will organize across the Northern Plains today and then rapidly strengthen as it moves into the Great Lakes on Sunday. Heavy snow and blowing snow are likely to persist over the Great Lakes into Monday night. Dry and gusty winds will produce a critical fire risk across the central/southern Plains. An early heatwave will begin to intensify over the western U.S. into next week. Read More >

Hazardous Weather Conditions

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

5 Miles WNW Alderdale WA

  • Today

    Today: Mostly sunny, with a high near 49. Northwest wind 15 to 21 mph, with gusts as high as 24 mph.

    High: 49 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 30. Northwest wind 12 to 17 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 22 mph.

    Low: 30 °F

    Partly Cloudy

  • Sunday

    Sunday: Increasing clouds, with a high near 49. Calm wind becoming southeast around 6 mph in the afternoon.

    High: 49 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: A 20 percent chance of rain before 11pm.  Cloudy, with a low around 40. South wind around 6 mph becoming light and variable.

    Low: 40 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 64. Southwest wind 7 to 14 mph, with gusts as high as 18 mph.

    High: 64 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 48.

    Low: 48 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of rain after 11am.  Mostly cloudy, with a high near 67.

    High: 67 °F

    Slight Chance
    Rain

  • Tuesday Night

    Tuesday Night: A 20 percent chance of rain before 11pm.  Mostly cloudy, with a low around 51.

    Low: 51 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of rain before 11am.  Mostly cloudy, with a high near 67.

    High: 67 °F

    Slight Chance
    Rain then
    Mostly Cloudy

Detailed Forecast

Today
Mostly sunny, with a high near 49. Northwest wind 15 to 21 mph, with gusts as high as 24 mph.
Tonight
Partly cloudy, with a low around 30. Northwest wind 12 to 17 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 22 mph.
Sunday
Increasing clouds, with a high near 49. Calm wind becoming southeast around 6 mph in the afternoon.
Sunday Night
A 20 percent chance of rain before 11pm. Cloudy, with a low around 40. South wind around 6 mph becoming light and variable.
Monday
Mostly cloudy, with a high near 64. Southwest wind 7 to 14 mph, with gusts as high as 18 mph.
Monday Night
Mostly cloudy, with a low around 48.
Tuesday
A 20 percent chance of rain after 11am. Mostly cloudy, with a high near 67.
Tuesday Night
A 20 percent chance of rain before 11pm. Mostly cloudy, with a low around 51.
Wednesday
A 20 percent chance of rain before 11am. Mostly cloudy, with a high near 67.
Wednesday Night
A slight chance of rain. Mostly cloudy, with a low around 52.
Thursday
A slight chance of rain. Partly sunny, with a high near 71.
Thursday Night
Mostly cloudy, with a low around 51.
Friday
Partly sunny, with a high near 72.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WNW Alderdale WA
 45.91°N 120.02°W (Elev. 902 ft)
10:15 am PDT Mar 14, 2026
10am PDT Mar 14, 2026-6pm PDT Mar 20, 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