Arctic Front Brings Winter Weather and Colder Temperatures to the Eastern U.S.

A series of cold fronts will bring heavy lake effect snow to the northern Great Lakes. The fronts will merge over the Ohio Valley and bring colder temperatures east of the Mississippi River later today into the end of the week. Additionally, wintry weather will develop over the Ohio Valley, Appalachians, and Northeast as rain switches over to snow tonight into Thursday morning. Read More >

Current conditions at

Sunnyside Municipal Airport (K1S5)

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

Fog

33°F

1°C

Humidity 98%
Wind Speed N 0 MPH
Barometer 30.54 in (1034.2 mb)
Dewpoint 33°F (1°C)
Visibility -0.25 mi
Last update 14 Jan 10:35 AM PST
Extended Forecast for

11 Miles SSW Mattawa WA

Air Stagnation Advisory January 14, 10:58am until January 16, 10:00am
Dense Fog Advisory January 14, 10:58am until January 14, 12:00pm
Click here for hazard details and duration
Air Stagnation Advisory
Dense Fog Advisory
  •  
    Air Stagnation Advisory January 14, 10:58am until January 16, 10:00am
    Dense Fog Advisory January 14, 10:58am until January 14, 12:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Today

    High: 48 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 33. Northwest wind around 6 mph.

    Low: 33 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 40. Northeast wind around 6 mph.

    High: 40 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 30. North wind around 6 mph.

    Low: 30 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 36. North wind around 7 mph.

    High: 36 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 28.

    Low: 28 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 35.

    High: 35 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 27.

    Low: 27 °F

    Partly Cloudy

Detailed Forecast

Today
Sunny, with a high near 48. Light southwest wind.
Tonight
Partly cloudy, with a low around 33. Northwest wind around 6 mph.
Thursday
Mostly sunny, with a high near 40. Northeast wind around 6 mph.
Thursday Night
Mostly clear, with a low around 30. North wind around 6 mph.
Friday
Mostly sunny, with a high near 36. North wind around 7 mph.
Friday Night
Mostly clear, with a low around 28.
Saturday
Mostly sunny, with a high near 35.
Saturday Night
Partly cloudy, with a low around 27.
Sunday
Mostly sunny, with a high near 35.
Sunday Night
Mostly clear, with a low around 26.
M.L.King Day
Mostly sunny, with a high near 34.
Monday Night
Mostly cloudy, with a low around 27.
Tuesday
Partly sunny, with a high near 33.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles SSW Mattawa WA
 46.59°N 119.98°W (Elev. 3100 ft)
9:15 am PST Jan 14, 2026
10am PST Jan 14, 2026-6pm PST Jan 20, 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