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 SW 4 MPH
Barometer 30.56 in (1034.88 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill26°F (-3°C)
Last update 18 Jan 09:30 PM PST
Extended Forecast for

Union Gap WA

Air Stagnation Advisory January 18, 09:45pm until January 20, 04:00pm
Click here for hazard details and duration
Air Stagnation Advisory
  •  
    Air Stagnation Advisory January 18, 09:45pm until January 20, 04:00pm

    NOW until 4:00pm Tue

    Air Stagnation Advisory

  • Tonight

    Low: 26 °F

    Cloudy

  • M.L.King Day

    M.L.King Day: Cloudy, then gradually becoming mostly sunny, with a high near 39. Calm wind.

    High: 39 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 23. Calm wind.

    Low: 23 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 40. Calm wind.

    High: 40 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 21. Calm wind.

    Low: 21 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 39.

    High: 39 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 23.

    Low: 23 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 40.

    High: 40 °F

    Partly Sunny

Detailed Forecast

Tonight
Cloudy, with a steady temperature around 26. Calm wind.
M.L.King Day
Cloudy, then gradually becoming mostly sunny, with a high near 39. Calm wind.
Monday Night
Mostly cloudy, with a low around 23. Calm wind.
Tuesday
Partly sunny, with a high near 40. Calm wind.
Tuesday Night
Partly cloudy, with a low around 21. Calm wind.
Wednesday
Partly sunny, with a high near 39.
Wednesday Night
Mostly cloudy, with a low around 23.
Thursday
Partly sunny, with a high near 40.
Thursday Night
Partly cloudy, with a low around 24.
Friday
A slight chance of rain and snow after 4pm. Snow level 1900 feet. Partly sunny, with a high near 41.
Friday Night
A slight chance of rain and snow. Snow level 2100 feet. Mostly cloudy, with a low around 25.
Saturday
A slight chance of rain and snow. Snow level 1800 feet. Partly sunny, with a high near 40.
Saturday Night
A slight chance of rain and snow. Snow level 2000 feet. Mostly cloudy, with a low around 23.
Sunday
A slight chance of rain and snow. Snow level 2100 feet. Partly sunny, with a high near 41.
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ABOUT THIS FORECAST

 
Point Forecast:
Union Gap WA
 46.54°N 120.47°W (Elev. 997 ft)
9:15 pm PST Jan 18, 2026
9pm PST Jan 18, 2026-6pm PST Jan 25, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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