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

Tri-Cities Airport (KPSC)

Lat: 46.26955°NLon: 119.11813°WElev: 397.0ft.

Clear

25°F

-4°C

Humidity 92%
Wind Speed NNW 3 MPH
Barometer 30.6 in (1036.24 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Last update 30 Dec 02:55 AM PST
Extended Forecast for

3 Miles SSW Wallula 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: 29 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 39. North wind 3 to 5 mph.

    High: 39 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 29. Calm wind.

    Low: 29 °F

    Mostly Clear

  • Wednesday

    Wednesday: Partly sunny, with a high near 34. Light northwest wind.

    High: 34 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 28. Calm wind.

    Low: 28 °F

    Mostly Cloudy

  • New Year's Day

    New Year's Day: A slight chance of rain and snow before 1pm, then a slight chance of rain. Cloudy, with a high near 35. Chance of precipitation is 20%.

    High: 35 °F

    Slight Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: A 50 percent chance of rain. Cloudy, with a low around 33.

    Low: 33 °F

    Chance Rain

  • Friday

    Friday: A 40 percent chance of rain. Mostly cloudy, with a high near 40.

    High: 40 °F

    Chance Rain

Detailed Forecast

Overnight
Mostly cloudy, with a low around 29. Calm wind.
Tuesday
Mostly sunny, with a high near 39. North wind 3 to 5 mph.
Tuesday Night
Mostly clear, with a low around 29. Calm wind.
Wednesday
Partly sunny, with a high near 34. Light northwest wind.
Wednesday Night
Mostly cloudy, with a low around 28. Calm wind.
New Year's Day
A slight chance of rain and snow before 1pm, then a slight chance of rain. Cloudy, with a high near 35. Chance of precipitation is 20%.
Thursday Night
A 50 percent chance of rain. Cloudy, with a low around 33.
Friday
A 40 percent chance of rain. Mostly cloudy, with a high near 40.
Friday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 38.
Saturday
A chance of rain, mainly after 4pm. Mostly cloudy, with a high near 48.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 38.
Sunday
Partly sunny, with a high near 46.
Sunday Night
A slight chance of rain. Mostly cloudy, with a low around 37.
Monday
A slight chance of rain. Mostly cloudy, with a high near 45.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Wallula WA
 46.05°N 118.93°W (Elev. 479 ft)
Last Update:
3:15 am PST Dec 30, 2025
Forecast Valid:
3am 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