Lingering Winter Weather in Interior New England; Snow Squalls Developing Downwind of the Lower Great Lakes

A wintry mix will continue in interior New England through tonight as a coastal storm quickly passes to the east. Heavy snow is expected in northern Maine, with a coating of ice expected for much of interior New England. Behind this storm system, lake effect snow and snow squalls will develop from the Ohio Valley to interior New England through Monday. Read More >

Current conditions at

Sunnyside Municipal Airport (K1S5)

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

Partly Cloudy

38°F

3°C

Humidity 89%
Wind Speed N 0 MPH
Barometer 30.43 in (1030.48 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 11 Jan 11:35 AM PST
Extended Forecast for

15 Miles ESE Mattawa WA

  • Today

    Today: Mostly cloudy, with a high near 44. Light northeast wind.

    High: 44 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 35. Southeast wind around 5 mph.

    Low: 35 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 54. Southeast wind 5 to 7 mph.

    High: 54 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 36. Southwest wind 3 to 5 mph.

    Low: 36 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 50. Calm wind.

    High: 50 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Areas of fog after 10pm.  Otherwise, partly cloudy, with a low around 33.

    Low: 33 °F

    Areas Fog

  • Wednesday

    Wednesday: Areas of fog before 10am.  Otherwise, mostly sunny, with a high near 48.

    High: 48 °F

    Areas Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Areas of fog after 10pm.  Otherwise, partly cloudy, with a low around 31.

    Low: 31 °F

    Areas Fog

  • Thursday

    Thursday: Areas of fog before 10am.  Otherwise, mostly sunny, with a high near 46.

    High: 46 °F

    Areas Fog
    then Mostly
    Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 44. Light northeast wind.
Tonight
Mostly cloudy, with a low around 35. Southeast wind around 5 mph.
Monday
Partly sunny, with a high near 54. Southeast wind 5 to 7 mph.
Monday Night
Mostly cloudy, with a low around 36. Southwest wind 3 to 5 mph.
Tuesday
Mostly cloudy, with a high near 50. Calm wind.
Tuesday Night
Areas of fog after 10pm. Otherwise, partly cloudy, with a low around 33.
Wednesday
Areas of fog before 10am. Otherwise, mostly sunny, with a high near 48.
Wednesday Night
Areas of fog after 10pm. Otherwise, partly cloudy, with a low around 31.
Thursday
Areas of fog before 10am. Otherwise, mostly sunny, with a high near 46.
Thursday Night
Areas of fog after 10pm. Otherwise, mostly clear, with a low around 29.
Friday
Areas of fog. Otherwise, mostly sunny, with a high near 44.
Friday Night
Areas of fog. Otherwise, partly cloudy, with a low around 28.
Saturday
Areas of fog. Otherwise, mostly sunny, with a high near 42.
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ABOUT THIS FORECAST

 
Point Forecast:
15 Miles ESE Mattawa WA
 46.63°N 119.62°W (Elev. 505 ft)
11:47 am PST Jan 11, 2026
11am PST Jan 11, 2026-6pm PST Jan 17, 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