Fire Weather Concerns; Record Warmth Spreads

The Plains to the mid-Mississippi Valley continue with warm and dry conditions. Any fires that initiate could spread quickly. The warm temperatures will expand across the Southern Plains into the Southwest where numerous records are expected through the weekend. Meanwhile, a cold front will move southward across the northern Plains and Great Lakes region where some snow will develop this weekend. Read More >

Current conditions at

Sunnyside Municipal Airport (K1S5)

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

Clear

33°F

1°C

Humidity 92%
Wind Speed N 0 MPH
Barometer 30.09 in (1018.96 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Last update 28 Feb 11:15 PM PST
Extended Forecast for

11 Miles SE Mattawa WA

  • Tonight

    Tonight: Mostly cloudy, with a low around 35. Northwest wind 3 to 5 mph.

    Low: 35 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 58. Light northwest wind.

    High: 58 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: 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 61. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 61 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 37. South wind around 5 mph becoming light and variable  after midnight.

    Low: 37 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 10 percent chance of rain after 4pm.  Mostly cloudy, with a high near 61.

    High: 61 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Tuesday Night

    Tuesday Night: A 40 percent chance of rain, mainly after 10pm.  Mostly cloudy, with a low around 43.

    Low: 43 °F

    Chance Rain

  • Wednesday

    Wednesday: A 50 percent chance of rain, mainly before 4pm.  Partly sunny, 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
    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 35. Northwest wind 3 to 5 mph.
Sunday
Partly sunny, with a high near 58. Light northwest wind.
Sunday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 36. Light northwest wind.
Monday
Sunny, with a high near 61. Calm wind becoming southeast around 5 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 37. South wind around 5 mph becoming light and variable after midnight.
Tuesday
A 10 percent chance of rain after 4pm. Mostly cloudy, with a high near 61.
Tuesday Night
A 40 percent chance of rain, mainly after 10pm. Mostly cloudy, with a low around 43.
Wednesday
A 50 percent chance of rain, mainly before 4pm. Partly sunny, with a high near 60.
Wednesday Night
A 20 percent chance of rain before 10pm. Partly cloudy, with a low around 39.
Thursday
A slight chance of rain after 10am. Partly sunny, with a high near 57.
Thursday Night
A slight chance of rain. Mostly cloudy, with a low around 38.
Friday
Mostly cloudy, with a high near 60.
Friday Night
A chance of rain. Mostly cloudy, with a low around 41.
Saturday
A chance of rain. Mostly cloudy, with a high near 61.
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles SE Mattawa WA
 46.64°N 119.74°W (Elev. 400 ft)
9:15 pm PST Feb 28, 2026
11pm PST Feb 28, 2026-6pm PST Mar 7, 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