Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

Heavy lake-effect and lake-enhanced snow will persist downwind of the Great Lakes and produce some whiteout conditions that could cause difficult travel conditions. A coastal low will produce moderate to heavy snow over parts of southern and eastern New England into the afternoon. Below average temperatures are expected across the eastern U.S., particularly with chilly morning temperatures. Read More >

Current conditions at

Yakima Air Terminal - McAllister Field (KYKM)

Lat: 46.56402°NLon: 120.53484°WElev: 1043.0ft.

Overcast

30°F

-1°C

Humidity 86%
Wind Speed SSW 3 MPH
Barometer 30.57 in (1035.22 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Last update 19 Jan 05:20 AM PST
Extended Forecast for

11 Miles WSW Mattawa WA

Air Stagnation Advisory January 19, 05:35am until January 20, 04:00pm
Click here for hazard details and duration
Air Stagnation Advisory
  •  
    Air Stagnation Advisory January 19, 05:35am until January 20, 04:00pm

    NOW until 4:00pm Tue

    Air Stagnation Advisory

  • M.L.King Day

    High: 33 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a steady temperature around 28. Southwest wind 3 to 5 mph.

    Low: 28 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 32. North wind 3 to 6 mph.

    High: 32 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 25. Northwest wind 3 to 5 mph.

    Low: 25 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 31. Northeast wind 3 to 5 mph.

    High: 31 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 24.

    Low: 24 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 31.

    High: 31 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 24.

    Low: 24 °F

    Partly Cloudy

Detailed Forecast

M.L.King Day
Mostly sunny, with a high near 33. Southeast wind 3 to 5 mph.
Tonight
Partly cloudy, with a steady temperature around 28. Southwest wind 3 to 5 mph.
Tuesday
Partly sunny, with a high near 32. North wind 3 to 6 mph.
Tuesday Night
Mostly clear, with a low around 25. Northwest wind 3 to 5 mph.
Wednesday
Mostly sunny, with a high near 31. Northeast wind 3 to 5 mph.
Wednesday Night
Partly cloudy, with a low around 24.
Thursday
Partly sunny, with a high near 31.
Thursday Night
Partly cloudy, with a low around 24.
Friday
Mostly sunny, with a high near 32.
Friday Night
Mostly clear, with a low around 24.
Saturday
Mostly sunny, with a high near 31.
Saturday Night
A slight chance of snow. Partly cloudy, with a low around 26.
Sunday
A slight chance of snow. Partly sunny, with a high near 34.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles WSW Mattawa WA
 46.67°N 120.13°W (Elev. 3330 ft)
4:21 am PST Jan 19, 2026
5am PST Jan 19, 2026-6pm PST Jan 25, 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