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

DW5434 Heppner (D5434)

Lat: 45.24967°NLon: 119.73117°WElev: 2600.0ft.

NA

24°F

-4°C

Humidity 90%
Wind Speed SSW 5 MPH
Barometer 30.67 in (1038.61 mb)
Dewpoint 21°F (-6°C)
Visibility NA
Wind Chill18°F (-8°C)
Last update 29 Dec 07:46 PM PST
Extended Forecast for

Heppner 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

  • Tonight

    Low: 24 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 36. Light northwest wind.

    High: 36 °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 40. Calm wind.

    High: 40 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 30 percent chance of snow after 4am. Mostly cloudy, with a low around 28. Calm wind.

    Low: 28 °F

    Mostly Cloudy
    then Chance
    Snow

  • New Year's Day

    New Year's Day: A chance of rain and snow before 10am, then a chance of rain. Mostly cloudy, with a high near 40. Chance of precipitation is 30%.

    High: 40 °F

    Chance
    Rain/Snow
    then Chance
    Rain

  • Thursday Night

    Thursday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 32.

    Low: 32 °F

    Chance Rain

  • Friday

    Friday: A 40 percent chance of rain. Mostly cloudy, with a high near 48.

    High: 48 °F

    Chance Rain

Detailed Forecast

Tonight
Partly cloudy, with a low around 24. Calm wind.
Tuesday
Sunny, with a high near 36. Light northwest wind.
Tuesday Night
Mostly clear, with a low around 25. Calm wind.
Wednesday
Partly sunny, with a high near 40. Calm wind.
Wednesday Night
A 30 percent chance of snow after 4am. Mostly cloudy, with a low around 28. Calm wind.
New Year's Day
A chance of rain and snow before 10am, then a chance of rain. Mostly cloudy, with a high near 40. Chance of precipitation is 30%.
Thursday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 32.
Friday
A 40 percent chance of rain. Mostly cloudy, with a high near 48.
Friday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 34.
Saturday
A chance of rain, mainly before 10am. Mostly cloudy, with a high near 48.
Saturday Night
A chance of rain and snow. Mostly cloudy, with a low around 34.
Sunday
A chance of rain and snow. Partly sunny, with a high near 48.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 35.
Monday
A chance of rain. Partly sunny, with a high near 48.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Heppner OR
 45.34°N 119.56°W (Elev. 2129 ft)
Last Update:
7:53 pm PST Dec 29, 2025
Forecast Valid:
8pm PST Dec 29, 2025-6pm PST Jan 5, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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