National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

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

32°F

0°C

Humidity 88%
Wind Speed N 0 MPH
Barometer 30.12 in (1019.98 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Last update 28 Feb 05:55 AM PST
Extended Forecast for

11 Miles SE Mattawa WA

  • Today

    Today: Partly sunny, with a high near 56. North wind 3 to 5 mph.

    High: 56 °F

    Partly Sunny

  • 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 57. North wind 3 to 5 mph.

    High: 57 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 35. Light west wind.

    Low: 35 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 61. Light and variable wind becoming south around 5 mph in the afternoon.

    High: 61 °F

    Sunny

  • Monday Night

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

    Low: 37 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 60.

    High: 60 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A 30 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 59.

    High: 59 °F

    Chance Rain

Detailed Forecast

Today
Partly sunny, with a high near 56. North wind 3 to 5 mph.
Tonight
Mostly cloudy, with a low around 35. Northwest wind 3 to 5 mph.
Sunday
Partly sunny, with a high near 57. North wind 3 to 5 mph.
Sunday Night
Mostly clear, with a low around 35. Light west wind.
Monday
Sunny, with a high near 61. Light and variable wind becoming south around 5 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 37.
Tuesday
Mostly cloudy, with a high near 60.
Tuesday Night
A 30 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 59.
Wednesday Night
A slight chance of rain before 10pm. Partly cloudy, with a low around 39.
Thursday
Mostly sunny, with a high near 58.
Thursday Night
Mostly clear, with a low around 38.
Friday
Partly sunny, with a high near 59.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
11 Miles SE Mattawa WA
 46.64°N 119.74°W (Elev. 400 ft)
Last Update:
4:21 am PST Feb 28, 2026
Forecast Valid:
6am PST Feb 28, 2026-6pm PST Mar 6, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation