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

OROVILLE (OVLW1)

Lat: 48.96311°NLon: 119.49161°WElev: 1450.0ft.

NA

25°F

-4°C

Humidity 81%
Wind Speed NNE 1 MPH
Barometer NA
Dewpoint 20°F (-7°C)
Visibility NA
Last update 30 Dec 01:41 AM PST
Extended Forecast for

24 Miles NNE Mazama 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: 20 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 30. Southwest wind 7 to 9 mph.

    High: 30 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 24. West wind 8 to 10 mph.

    Low: 24 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 32. Southwest wind 6 to 8 mph.

    High: 32 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 19. West wind around 7 mph.

    Low: 19 °F

    Partly Cloudy

  • New Year's Day

    New Year's Day: Mostly cloudy, with a high near 26.

    High: 26 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 18. New snow accumulation of less than a half inch possible.

    Low: 18 °F

    Chance Snow

  • Friday

    Friday: Snow likely, mainly after 10am. Mostly cloudy, with a high near 24. Chance of precipitation is 60%.

    High: 24 °F

    Snow Likely

Detailed Forecast

Overnight
Partly cloudy, with a low around 20. Southwest wind around 9 mph.
Tuesday
Partly sunny, with a high near 30. Southwest wind 7 to 9 mph.
Tuesday Night
Mostly cloudy, with a low around 24. West wind 8 to 10 mph.
Wednesday
Partly sunny, with a high near 32. Southwest wind 6 to 8 mph.
Wednesday Night
Partly cloudy, with a low around 19. West wind around 7 mph.
New Year's Day
Mostly cloudy, with a high near 26.
Thursday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 18. New snow accumulation of less than a half inch possible.
Friday
Snow likely, mainly after 10am. Mostly cloudy, with a high near 24. Chance of precipitation is 60%.
Friday Night
Snow likely. Mostly cloudy, with a low around 20. Chance of precipitation is 70%.
Saturday
Snow likely. Mostly cloudy, with a high near 22. Chance of precipitation is 70%.
Saturday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 14.
Sunday
A 40 percent chance of snow. Mostly cloudy, with a high near 20.
Sunday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 14.
Monday
A 40 percent chance of snow. Mostly cloudy, with a high near 22.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
24 Miles NNE Mazama WA
 48.92°N 120.22°W (Elev. 7562 ft)
Last Update:
1:27 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