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

37°F

3°C

Humidity 82%
Wind Speed N 0 MPH
Barometer 30.11 in (1019.64 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 02 Mar 08:55 AM PST
Extended Forecast for

11 Miles SSW Mattawa WA

  • Today

    Today: Sunny, with a high near 52. West wind around 7 mph becoming southwest in the morning.

    High: 52 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 36. West wind around 7 mph.

    Low: 36 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 51. Southwest wind 7 to 17 mph, with gusts as high as 25 mph.

    High: 51 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A 40 percent chance of rain after 10pm.  Mostly cloudy, with a low around 40. Southwest wind 13 to 17 mph, with gusts as high as 25 mph.

    Low: 40 °F

    Chance Rain

  • Wednesday

    Wednesday: A 50 percent chance of rain.  Mostly cloudy, with a high near 49. Breezy, with a west wind 13 to 23 mph, with gusts as high as 32 mph.  New precipitation amounts of less than a tenth of an inch possible.

    High: 49 °F

    Chance Rain
    and Breezy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 36. Breezy.

    Low: 36 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 48.

    High: 48 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 37.

    Low: 37 °F

    Partly Cloudy

  • Friday

    Friday: A 10 percent chance of rain after 4pm.  Snow level 3700 feet rising to 4700 feet in the afternoon. Partly sunny, with a high near 50.

    High: 50 °F

    Partly Sunny
    then Slight
    Chance Rain

Detailed Forecast

Today
Sunny, with a high near 52. West wind around 7 mph becoming southwest in the morning.
Tonight
Partly cloudy, with a low around 36. West wind around 7 mph.
Tuesday
Mostly cloudy, with a high near 51. Southwest wind 7 to 17 mph, with gusts as high as 25 mph.
Tuesday Night
A 40 percent chance of rain after 10pm. Mostly cloudy, with a low around 40. Southwest wind 13 to 17 mph, with gusts as high as 25 mph.
Wednesday
A 50 percent chance of rain. Mostly cloudy, with a high near 49. Breezy, with a west wind 13 to 23 mph, with gusts as high as 32 mph. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Mostly clear, with a low around 36. Breezy.
Thursday
Mostly sunny, with a high near 48.
Thursday Night
Partly cloudy, with a low around 37.
Friday
A 10 percent chance of rain after 4pm. Snow level 3700 feet rising to 4700 feet in the afternoon. Partly sunny, with a high near 50.
Friday Night
A slight chance of rain before 10pm. Mostly cloudy, with a low around 42.
Saturday
A slight chance of rain. Mostly cloudy, with a high near 55.
Saturday Night
Partly cloudy, with a low around 40.
Sunday
A slight chance of rain and snow. Snow level 3900 feet. Mostly cloudy, with a high near 51. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles SSW Mattawa WA
 46.59°N 119.98°W (Elev. 3100 ft)
8:31 am PST Mar 2, 2026
9am PST Mar 2, 2026-6pm PDT Mar 8, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database