Heavy Precipitation in the West; Wintry Mix in the North; Fire Weather in the High Plains

Pacific moisture will continue to bring locally heavy coastal/lower elevation rain and heavy mountain snow to the West Coast and portions of the Intermountain West through Monday. A wintry mix will create hazardous travel across the northern Plains and Upper Midwest into early Monday. Dry, gusty winds are resulting in elevated to critical fire weather in the south/central High Plains. Read More >

Current conditions at

Sunnyside Municipal Airport (K1S5)

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

Overcast

38°F

3°C

Humidity 89%
Wind Speed N 0 MPH
Barometer 29.69 in (1005.42 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 05 Jan 12:15 AM PST
Extended Forecast for

11 Miles SE Mattawa WA

  • Overnight

    Overnight: Mostly cloudy, with a low around 33. South wind around 6 mph.

    Low: 33 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 48. West wind around 6 mph.

    High: 48 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 30. Southwest wind around 6 mph.

    Low: 30 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: A 40 percent chance of rain after 10am.  Snow level 1200 feet rising to 2400 feet in the afternoon. Cloudy, with a high near 46. South wind 6 to 10 mph.

    High: 46 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 31. West wind around 11 mph, with gusts as high as 20 mph.

    Low: 31 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 10 percent chance of rain after 4pm.  Snow level 1300 feet rising to 1900 feet in the afternoon. Partly sunny, with a high near 48.

    High: 48 °F

    Mostly Sunny
    then Slight
    Chance Rain

  • Wednesday Night

    Wednesday Night: A 20 percent chance of rain before 10pm.  Partly cloudy, with a low around 31.

    Low: 31 °F

    Slight Chance
    Rain then
    Mostly Clear

  • Thursday

    Thursday: A slight chance of rain and snow before 10am, then a slight chance of rain.  Snow level 1200 feet rising to 1800 feet in the afternoon. Mostly sunny, with a high near 50. Chance of precipitation is 20%.

    High: 50 °F

    Slight Chance
    Rain/Snow
    then Slight
    Chance Rain

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 33. South wind around 6 mph.
Monday
Mostly sunny, with a high near 48. West wind around 6 mph.
Monday Night
Increasing clouds, with a low around 30. Southwest wind around 6 mph.
Tuesday
A 40 percent chance of rain after 10am. Snow level 1200 feet rising to 2400 feet in the afternoon. Cloudy, with a high near 46. South wind 6 to 10 mph.
Tuesday Night
Partly cloudy, with a low around 31. West wind around 11 mph, with gusts as high as 20 mph.
Wednesday
A 10 percent chance of rain after 4pm. Snow level 1300 feet rising to 1900 feet in the afternoon. Partly sunny, with a high near 48.
Wednesday Night
A 20 percent chance of rain before 10pm. Partly cloudy, with a low around 31.
Thursday
A slight chance of rain and snow before 10am, then a slight chance of rain. Snow level 1200 feet rising to 1800 feet in the afternoon. Mostly sunny, with a high near 50. Chance of precipitation is 20%.
Thursday Night
Mostly cloudy, with a low around 34.
Friday
Mostly cloudy, with a high near 51.
Friday Night
Mostly cloudy, with a low around 33.
Saturday
Mostly cloudy, with a high near 49.
Saturday Night
Mostly cloudy, with a low around 34.
Sunday
Mostly cloudy, with a high near 49.
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles SE Mattawa WA
 46.64°N 119.74°W (Elev. 400 ft)
10:20 pm PST Jan 4, 2026
12am PST Jan 5, 2026-6pm PST Jan 11, 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