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

Ken Jernstedt Airfield (K4S2)

Lat: 45.67457°NLon: 121.53493°WElev: 600.0ft.

Clear

30°F

-1°C

Humidity 86%
Wind Speed N 0 MPH
Barometer 30.57 in (1035.22 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Last update 30 Dec 12:15 AM PST
Extended Forecast for

6 Miles S Mosier OR

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: 25 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 32. East wind 3 to 6 mph.

    High: 32 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 25. Calm wind.

    Low: 25 °F

    Mostly Clear

  • Wednesday

    Wednesday: Partly sunny, with a high near 35. Light east wind.

    High: 35 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of rain and snow after 4am. Mostly cloudy, with a low around 28. Calm wind. Chance of precipitation is 10%.

    Low: 28 °F

    Mostly Cloudy
    then Slight
    Chance
    Rain/Snow

  • New Year's Day

    New Year's Day: A slight chance of rain and snow before 10am, then a chance of rain. Mostly cloudy, with a high near 35. Chance of precipitation is 30%.

    High: 35 °F

    Chance
    Rain/Snow
    then Chance
    Rain

  • Thursday Night

    Thursday Night: Rain likely. Mostly cloudy, with a low around 31. Chance of precipitation is 70%.

    Low: 31 °F

    Rain Likely

  • Friday

    Friday: Rain likely. Mostly cloudy, with a high near 40. Chance of precipitation is 70%.

    High: 40 °F

    Rain Likely

Detailed Forecast

Overnight
Partly cloudy, with a low around 25. Calm wind.
Tuesday
Sunny, with a high near 32. East wind 3 to 6 mph.
Tuesday Night
Mostly clear, with a low around 25. Calm wind.
Wednesday
Partly sunny, with a high near 35. Light east wind.
Wednesday Night
A slight chance of rain and snow after 4am. Mostly cloudy, with a low around 28. Calm wind. Chance of precipitation is 10%.
New Year's Day
A slight chance of rain and snow before 10am, then a chance of rain. Mostly cloudy, with a high near 35. Chance of precipitation is 30%.
Thursday Night
Rain likely. Mostly cloudy, with a low around 31. Chance of precipitation is 70%.
Friday
Rain likely. Mostly cloudy, with a high near 40. Chance of precipitation is 70%.
Friday Night
Rain likely. Mostly cloudy, with a low around 33. Chance of precipitation is 60%.
Saturday
Rain likely, mainly before 10am. Mostly cloudy, with a high near 41.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 34.
Sunday
A chance of rain. Partly sunny, with a high near 42.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 34.
Monday
A chance of rain. Mostly cloudy, with a high near 44.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles S Mosier OR
 45.6°N 121.39°W (Elev. 1385 ft)
Last Update:
9:17 pm PST Dec 29, 2025
Forecast Valid:
12am 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