National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heavy Lake Effect Snow; Subfreezing Temperatures in the Eastern U.S.

A multi-day heavy lake effect snow event is expected downwind of Lakes Erie and Ontario through New Year's Day. The Arctic front will continue to bring increasing winds to the Northeast that will remain gusty. Subfreezing overnight low temperatures will be found as far south as the Gulf Coast. Read More >

Hazardous Weather Conditions

Current conditions at

Yakima Air Terminal - McAllister Field (KYKM)

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

Clear

23°F

-5°C

Humidity 85%
Wind Speed W 6 MPH
Barometer 30.56 in (1034.88 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill16°F (-9°C)
Last update 30 Dec 02:35 AM PST
Extended Forecast for

Union Gap WA

Air Stagnation Advisory until January 1, 12:00pm
Click here for hazard details and duration
Air Stagnation Advisory
  •  
    Air Stagnation Advisory until January 1, 12:00pm

    NOW until 12:00pm Thu

    Air Stagnation Advisory

  • Overnight

    Low: 21 °F

    Partly Cloudy

  • Tuesday

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

    High: 40 °F

    Mostly Sunny

  • Tuesday Night

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

    Low: 21 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 37. Calm wind.

    High: 37 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 22. Calm wind.

    Low: 22 °F

    Mostly Cloudy

  • New Year's Day

    New Year's Day: Mostly cloudy, with a high near 36.

    High: 36 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: A chance of rain and snow, mainly before 4am. Mostly cloudy, with a low around 27. Chance of precipitation is 30%.

    Low: 27 °F

    Chance
    Rain/Snow

  • Friday

    Friday: A slight chance of rain and snow before 7am, then a chance of rain. Mostly cloudy, with a high near 39. Chance of precipitation is 30%.

    High: 39 °F

    Chance
    Rain/Snow
    then Chance
    Rain

Detailed Forecast

Overnight
Partly cloudy, with a low around 21. Calm wind.
Tuesday
Mostly sunny, with a high near 40. Calm wind.
Tuesday Night
Partly cloudy, with a low around 21. Calm wind.
Wednesday
Mostly sunny, with a high near 37. Calm wind.
Wednesday Night
Mostly cloudy, with a low around 22. Calm wind.
New Year's Day
Mostly cloudy, with a high near 36.
Thursday Night
A chance of rain and snow, mainly before 4am. Mostly cloudy, with a low around 27. Chance of precipitation is 30%.
Friday
A slight chance of rain and snow before 7am, then a chance of rain. Mostly cloudy, with a high near 39. Chance of precipitation is 30%.
Friday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 29.
Saturday
A chance of rain, mainly before 10am. Partly sunny, with a high near 44.
Saturday Night
A slight chance of rain. Mostly cloudy, with a low around 28.
Sunday
A slight chance of rain. Partly sunny, with a high near 43.
Sunday Night
A slight chance of rain. Mostly cloudy, with a low around 28.
Monday
Mostly cloudy, with a high near 42.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Union Gap WA
 46.56°N 120.47°W (Elev. 997 ft)
Last Update:
2:31 am PST Dec 30, 2025
Forecast Valid:
2am PST Dec 30, 2025-6pm PST Jan 5, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation