Major Winter Storm to Impact the Mid-Atlantic and Northeast; Inclement Weather in the Pacific Northwest

A major winter storm is expected to bring heavy snow, strong winds, and coastal flooding across the Mid-Atlantic and Northeast that may cause impossible travel conditions and power outages. Blizzard conditions are possible along coastal areas from the DelMarVa Peninsula through southeastern New England. Wet weather and strong winds return to the Pacific Northwest and north-central California. Read More >

Current conditions at

Sunnyside Municipal Airport (K1S5)

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

snow

42°F

6°C

Humidity 85%
Wind Speed N 0 MPH
Barometer 30.09 in (1018.96 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Last update 22 Feb 07:55 PM PST
Extended Forecast for

11 Miles SSW Mattawa WA

  • Tonight

    Tonight: Rain likely, mainly after 4am.  Mostly cloudy, with a low around 35. South wind 9 to 11 mph.  Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 35 °F

    Rain Likely

  • Monday

    Monday: Rain likely before 1pm, then rain likely, possibly mixed with snow.  Cloudy, with a high near 42. West wind around 13 mph, with gusts as high as 21 mph.  Chance of precipitation is 70%. Little or no snow accumulation expected.

    High: 42 °F

    Rain Likely
    then
    Rain/Snow
    Likely

  • Monday Night

    Monday Night: Rain and snow likely.  Snow level 3800 feet. Cloudy, with a low around 34. West wind around 9 mph.  Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 34 °F

    Rain/Snow
    Likely

  • Tuesday

    Tuesday: Rain and snow likely, mainly before 10am.  Snow level 3600 feet. Mostly cloudy, with a high near 40. Northwest wind around 8 mph.  Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 40 °F

    Rain/Snow
    Likely

  • Tuesday Night

    Tuesday Night: A chance of rain and snow before 10pm.  Partly cloudy, with a low around 30. West wind 14 to 17 mph, with gusts as high as 24 mph.  Chance of precipitation is 30%.

    Low: 30 °F

    Chance
    Rain/Snow
    then Partly
    Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 44. Breezy.

    High: 44 °F

    Sunny then
    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 31.

    Low: 31 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 45. Breezy.

    High: 45 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 33. Breezy.

    Low: 33 °F

    Partly Cloudy
    and Breezy
    then Partly
    Cloudy

Detailed Forecast

Tonight
Rain likely, mainly after 4am. Mostly cloudy, with a low around 35. South wind 9 to 11 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Rain likely before 1pm, then rain likely, possibly mixed with snow. Cloudy, with a high near 42. West wind around 13 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Monday Night
Rain and snow likely. Snow level 3800 feet. Cloudy, with a low around 34. West wind around 9 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Tuesday
Rain and snow likely, mainly before 10am. Snow level 3600 feet. Mostly cloudy, with a high near 40. Northwest wind around 8 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Tuesday Night
A chance of rain and snow before 10pm. Partly cloudy, with a low around 30. West wind 14 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.
Wednesday
Sunny, with a high near 44. Breezy.
Wednesday Night
Mostly clear, with a low around 31.
Thursday
Mostly sunny, with a high near 45. Breezy.
Thursday Night
Partly cloudy, with a low around 33. Breezy.
Friday
Mostly sunny, with a high near 45.
Friday Night
Partly cloudy, with a low around 29.
Saturday
Mostly sunny, with a high near 41.
Saturday Night
Mostly clear, with a low around 29.
Sunday
Sunny, with a high near 42.
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles SSW Mattawa WA
 46.59°N 119.98°W (Elev. 3100 ft)
3:20 pm PST Feb 22, 2026
8pm PST Feb 22, 2026-6pm PST Mar 1, 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