Winter Weather in the Eastern U.S.; Heavy Rains Begin Across the Southern Plains into the Ohio Valley

A wintry mix may impact travel across portions of the Mid-Atlantic through the morning and the Northeast U.S. through Tuesday. Heavy rain and thunderstorms may cause a flooding threat across the Southern Plains into the Ohio Valley beginning Tuesday. Fire weather concerns will continue across portions of the central and southern High Plains through Wednesday. Read More >

Current conditions at

Sunnyside Municipal Airport (K1S5)

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

Clear

41°F

5°C

Humidity 84%
Wind Speed N 0 MPH
Barometer 30.07 in (1018.29 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 02 Mar 09:55 PM PST
Extended Forecast for

11 Miles SE Mattawa WA

  • Tonight

    Tonight: Partly cloudy, with a low around 35. Light north wind.

    Low: 35 °F

    Partly Cloudy

  • Tuesday

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

    High: 62 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A 20 percent chance of rain after 10pm.  Cloudy, with a low around 45. Southwest wind 7 to 9 mph.

    Low: 45 °F

    Slight Chance
    Rain

  • Wednesday

    Wednesday: A 50 percent chance of rain.  Mostly cloudy, with a high near 61. West wind 6 to 13 mph, with gusts as high as 21 mph.  New precipitation amounts of less than a tenth of an inch possible.

    High: 61 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 40. West wind 11 to 13 mph, with gusts as high as 22 mph.

    Low: 40 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 59.

    High: 59 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 60.

    High: 60 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 43.

    Low: 43 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 35. Light north wind.
Tuesday
Mostly cloudy, with a high near 62. Light and variable wind becoming southwest 5 to 9 mph in the morning.
Tuesday Night
A 20 percent chance of rain after 10pm. Cloudy, with a low around 45. Southwest wind 7 to 9 mph.
Wednesday
A 50 percent chance of rain. Mostly cloudy, with a high near 61. West wind 6 to 13 mph, with gusts as high as 21 mph. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Partly cloudy, with a low around 40. West wind 11 to 13 mph, with gusts as high as 22 mph.
Thursday
Mostly sunny, with a high near 59.
Thursday Night
Partly cloudy, with a low around 38.
Friday
Partly sunny, with a high near 60.
Friday Night
Mostly cloudy, with a low around 43.
Saturday
Mostly cloudy, with a high near 64.
Saturday Night
Mostly cloudy, with a low around 45.
Sunday
A slight chance of rain. Mostly cloudy, with a high near 63.
Sunday Night
A slight chance of rain. Mostly cloudy, with a low around 41.
Monday
A slight chance of rain. Mostly sunny, with a high near 56.
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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 Mar 2, 2026
10pm PST Mar 2, 2026-6pm PDT Mar 9, 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