Winter Returns Across the Northern Tier; Record Warmth for the Southwest

A large high pressure system will usher in cold air for this first day of March across the northern Plains, Great Lakes, Northeast and mid-Atlantic. Some wintry precipitation may evolve across the mid-Mississippi Valley, Ohio Valley and mid-Atlantic through Monday. Meanwhile, record warmth will spread across the Southwest, southern Plains through early this week. Read More >

Current conditions at

Sunnyside Municipal Airport (K1S5)

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

Clear

35°F

2°C

Humidity 87%
Wind Speed N 0 MPH
Barometer 30.12 in (1019.98 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Last update 01 Mar 08:15 AM PST
Extended Forecast for

11 Miles SE Mattawa WA

  • Today

    Today: Partly sunny, with a high near 58. Light north wind.

    High: 58 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 36. Light northwest wind.

    Low: 36 °F

    Decreasing
    Clouds

  • Monday

    Monday: Sunny, with a high near 62. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 62 °F

    Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 38. South wind around 5 mph becoming light and variable  after midnight.

    Low: 38 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 62. Light southwest wind increasing to 5 to 9 mph in the morning.

    High: 62 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A 30 percent chance of rain after 10pm.  Cloudy, with a low around 43.

    Low: 43 °F

    Chance Rain

  • Wednesday

    Wednesday: A 50 percent chance of rain, mainly before 4pm.  Mostly cloudy, with a high near 60.

    High: 60 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: A 20 percent chance of rain before 10pm.  Partly cloudy, with a low around 39.

    Low: 39 °F

    Slight Chance
    Rain then
    Partly Cloudy

  • Thursday

    Thursday: A 10 percent chance of rain after 4pm.  Partly sunny, with a high near 57.

    High: 57 °F

    Partly Sunny
    then Slight
    Chance Rain

Detailed Forecast

Today
Partly sunny, with a high near 58. Light north wind.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 36. Light northwest wind.
Monday
Sunny, with a high near 62. Calm wind becoming southeast around 5 mph in the afternoon.
Monday Night
Increasing clouds, with a low around 38. South wind around 5 mph becoming light and variable after midnight.
Tuesday
Mostly cloudy, with a high near 62. Light southwest wind increasing to 5 to 9 mph in the morning.
Tuesday Night
A 30 percent chance of rain after 10pm. Cloudy, with a low around 43.
Wednesday
A 50 percent chance of rain, mainly before 4pm. Mostly cloudy, with a high near 60.
Wednesday Night
A 20 percent chance of rain before 10pm. Partly cloudy, with a low around 39.
Thursday
A 10 percent chance of rain after 4pm. Partly sunny, with a high near 57.
Thursday Night
A slight chance of rain before 10pm. Partly cloudy, with a low around 39.
Friday
Partly sunny, with a high near 59.
Friday Night
A slight chance of rain. Mostly cloudy, with a low around 41.
Saturday
A chance of rain. Mostly cloudy, with a high near 59.
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles SE Mattawa WA
 46.64°N 119.74°W (Elev. 400 ft)
4:21 am PST Mar 1, 2026
8am PST Mar 1, 2026-6pm PST Mar 7, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database