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

11 Miles WSW Mattawa 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: 22 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 30. Northeast wind 3 to 6 mph.

    High: 30 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a steady temperature around 28. North wind around 6 mph becoming southwest in the evening.

    Low: 28 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 31. Northwest wind around 5 mph becoming calm in the morning.

    High: 31 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 25. Light northwest wind.

    Low: 25 °F

    Mostly Cloudy

  • New Year's Day

    New Year's Day: Mostly cloudy, with a high near 29.

    High: 29 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: A chance of rain and snow. Snow level 3900 feet rising to 4400 feet. Mostly cloudy, with a low around 28. Chance of precipitation is 30%.

    Low: 28 °F

    Chance
    Rain/Snow

  • Friday

    Friday: A chance of rain and snow before 10am, then a chance of rain. Mostly cloudy, with a high near 32. Chance of precipitation is 40%.

    High: 32 °F

    Chance
    Rain/Snow
    then Chance
    Rain

Detailed Forecast

Overnight
Partly cloudy, with a low around 22. Northeast wind around 6 mph.
Tuesday
Mostly sunny, with a high near 30. Northeast wind 3 to 6 mph.
Tuesday Night
Partly cloudy, with a steady temperature around 28. North wind around 6 mph becoming southwest in the evening.
Wednesday
Partly sunny, with a high near 31. Northwest wind around 5 mph becoming calm in the morning.
Wednesday Night
Mostly cloudy, with a low around 25. Light northwest wind.
New Year's Day
Mostly cloudy, with a high near 29.
Thursday Night
A chance of rain and snow. Snow level 3900 feet rising to 4400 feet. Mostly cloudy, with a low around 28. Chance of precipitation is 30%.
Friday
A chance of rain and snow before 10am, then a chance of rain. Mostly cloudy, with a high near 32. Chance of precipitation is 40%.
Friday Night
A chance of rain before 1am, then a chance of rain and snow. Mostly cloudy, with a low around 31. Chance of precipitation is 50%.
Saturday
A chance of rain and snow, mainly before 10am. Snow level 3900 feet. Partly sunny, with a high near 36.
Saturday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 30.
Sunday
A slight chance of snow. Partly sunny, with a high near 35.
Sunday Night
A slight chance of snow. Mostly cloudy, with a low around 30.
Monday
A slight chance of snow. Mostly cloudy, with a high near 34.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
11 Miles WSW Mattawa WA
 46.67°N 120.13°W (Elev. 3330 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