National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Snow Squalls May Impact New Year's Eve Travel from the Great Lakes to the Northeast; Heavy Rain Returns to California

An Alberta clipper will bring lake effect snow downwind of the Great Lakes, with the highest snow totals downwind of Lakes Erie and Ontario. Snow squalls may impact New Year's Eve travel during the evening and overnight hours across parts of the Great Lakes, Ohio Valley, and Northeast. Heavy rain will bring a flash flooding threat for southern California on New Year's Eve into New Year's Day. Read More >

Hazardous Weather Conditions

Current conditions at

OROVILLE (OVLW1)

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

NA

35°F

2°C

Humidity 58%
Wind Speed WSW 3 MPH
Barometer NA
Dewpoint 22°F (-6°C)
Visibility NA
Last update 30 Dec 04:41 PM PST
Extended Forecast for

30 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

  • This Afternoon

    High: 27 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 25. Southwest wind around 10 mph.

    Low: 25 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 33. Southwest wind 6 to 9 mph.

    High: 33 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 20. Southwest wind around 9 mph.

    Low: 20 °F

    Partly Cloudy

  • New Year's Day

    New Year's Day: Partly sunny, with a high near 28. West wind 6 to 9 mph.

    High: 28 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of snow after 10pm. Mostly cloudy, with a low around 20. Little or no snow accumulation expected.

    Low: 20 °F

    Chance Snow

  • Friday

    Friday: A 40 percent chance of snow. Mostly cloudy, with a high near 26. New snow accumulation of less than a half inch possible.

    High: 26 °F

    Chance Snow

  • Friday Night

    Friday Night: Snow. Low around 20. Chance of precipitation is 80%.

    Low: 20 °F

    Snow

Detailed Forecast

This Afternoon
Partly sunny, with a steady temperature around 27. Southwest wind around 8 mph.
Tonight
Mostly cloudy, with a low around 25. Southwest wind around 10 mph.
Wednesday
Partly sunny, with a high near 33. Southwest wind 6 to 9 mph.
Wednesday Night
Partly cloudy, with a low around 20. Southwest wind around 9 mph.
New Year's Day
Partly sunny, with a high near 28. West wind 6 to 9 mph.
Thursday Night
A 30 percent chance of snow after 10pm. Mostly cloudy, with a low around 20. Little or no snow accumulation expected.
Friday
A 40 percent chance of snow. Mostly cloudy, with a high near 26. New snow accumulation of less than a half inch possible.
Friday Night
Snow. Low around 20. Chance of precipitation is 80%.
Saturday
Snow. High near 23. Chance of precipitation is 80%.
Saturday Night
Snow likely. Mostly cloudy, with a low around 18. Chance of precipitation is 70%.
Sunday
A 50 percent chance of snow. Mostly cloudy, with a high near 21.
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.
Monday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 14.
Tuesday
A 30 percent chance of snow. Partly sunny, with a high near 24.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
30 Miles NNE Mazama WA
 48.99°N 120.14°W (Elev. 7201 ft)
Last Update:
3:27 pm PST Dec 30, 2025
Forecast Valid:
5pm PST Dec 30, 2025-6pm PST Jan 6, 2026
 
Forecast Discussion
 
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Additional Resources

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National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation