Heavy Lake Effect Snow Downwind of Lakes Erie and Ontario; Fire Weather Concerns in the Southern Plains and Southeast

A multi-day heavy lake effect snow event is expected downwind of Lakes Erie and Ontario through New Year's Day. There is increasing confidence in snow squalls causing bursts of snow & gusty winds on New Year's Eve. Elevated fire weather conditions will continue today over parts of the Southern Plains and across much of the Southeast U.S. Read More >

Current conditions at

Alturas (KAAT)

Lat: 41.48362°NLon: 120.5615°WElev: 4383.0ft.

Clear

25°F

-4°C

Humidity 85%
Wind Speed E 3 MPH
Barometer 30.34 in (1027.43 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Last update 30 Dec 07:30 AM PST
Extended Forecast for

11 Miles ENE Bieber CA

  • Today

    Today: Sunny, with a high near 48. Southeast wind 7 to 11 mph.

    High: 48 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 28. East southeast wind 7 to 10 mph.

    Low: 28 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 30 percent chance of showers after 4pm.  Snow level 6400 feet rising to 7300 feet in the afternoon. Mostly cloudy, with a high near 50. Southeast wind around 6 mph.

    High: 50 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers likely, mainly between 10pm and 4am, then rain likely after 4am.  Cloudy, with a low around 35. Southeast wind around 6 mph.  Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 35 °F

    Showers
    Likely

  • New Year's Day

    New Year's Day: Rain.  High near 48. South southeast wind 5 to 9 mph.  Chance of precipitation is 90%.

    High: 48 °F

    Rain

  • Thursday Night

    Thursday Night: Rain, mainly before 4am.  Low around 38. Chance of precipitation is 80%.

    Low: 38 °F

    Rain

  • Friday

    Friday: Rain, mainly after 10am.  Snow level 7200 feet. High near 50. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 50 °F

    Rain

  • Friday Night

    Friday Night: Rain before 10pm, then rain, possibly mixed with snow.  Snow level 6500 feet lowering to 5500 feet after midnight . Mostly cloudy, with a low around 32.

    Low: 32 °F

    Rain/Snow

  • Saturday

    Saturday: Rain, possibly mixed with snow.  Snow level 5000 feet. Mostly cloudy, with a high near 44.

    High: 44 °F

    Rain/Snow

Detailed Forecast

Today
Sunny, with a high near 48. Southeast wind 7 to 11 mph.
Tonight
Mostly cloudy, with a low around 28. East southeast wind 7 to 10 mph.
Wednesday
A 30 percent chance of showers after 4pm. Snow level 6400 feet rising to 7300 feet in the afternoon. Mostly cloudy, with a high near 50. Southeast wind around 6 mph.
Wednesday Night
Showers likely, mainly between 10pm and 4am, then rain likely after 4am. Cloudy, with a low around 35. Southeast wind around 6 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
New Year's Day
Rain. High near 48. South southeast wind 5 to 9 mph. Chance of precipitation is 90%.
Thursday Night
Rain, mainly before 4am. Low around 38. Chance of precipitation is 80%.
Friday
Rain, mainly after 10am. Snow level 7200 feet. High near 50. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
Rain before 10pm, then rain, possibly mixed with snow. Snow level 6500 feet lowering to 5500 feet after midnight . Mostly cloudy, with a low around 32.
Saturday
Rain, possibly mixed with snow. Snow level 5000 feet. Mostly cloudy, with a high near 44.
Saturday Night
Rain and snow likely, mainly before 10pm. Snow level 4600 feet. Mostly cloudy, with a low around 28.
Sunday
A chance of rain and snow. Snow level 4200 feet rising to 4800 feet in the afternoon. Mostly cloudy, with a high near 44.
Sunday Night
A chance of rain and snow. Snow level 4600 feet. Mostly cloudy, with a low around 28.
Monday
A chance of rain and snow. Snow level 4500 feet rising to 5100 feet in the afternoon. Mostly cloudy, with a high near 46.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
11 Miles ENE Bieber CA
 41.19°N 120.96°W (Elev. 4199 ft)
4:16 am PST Dec 30, 2025
7am PST Dec 30, 2025-6pm PST Jan 5, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database