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

Heavy Rain and Mountain Snow Lingers in California; Winter Storm Impacting the Great Lakes and Northeast U.S.

An atmospheric river will wind down through today across California with lingering heavy rainfall, heavy mountain snow, and gusty winds. A wintry mix of freezing rain, sleet, and snow will cause hazardous travel conditions for the Great Lakes into the northern Mid-Atlantic and southern New England today through Saturday morning. Areas of tree damage and power outages are possible. Read More >

Current conditions at

Montague Siskiyou County Airport (KSIY)

Lat: 41.77375°NLon: 122.46817°WElev: 2644.0ft.

Overcast

37°F

3°C

Humidity 93%
Wind Speed N 0 MPH
Barometer 30.01 in (1016.26 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 27 Dec 12:20 AM PST
Extended Forecast for

15 Miles ESE Happy Camp CA

  • Overnight

    Overnight: Areas of freezing fog. Mostly cloudy, with a low around 24. Northwest wind around 7 mph.

    Low: 24 °F

    Areas
    Freezing Fog

  • Saturday

    Saturday: Areas of freezing fog before 9am. Mostly sunny, with a high near 29. North wind 3 to 6 mph.

    High: 29 °F

    Areas
    Freezing Fog
    then Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 23. East southeast wind around 5 mph.

    Low: 23 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 33. East southeast wind around 7 mph.

    High: 33 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 27. East southeast wind around 7 mph.

    Low: 27 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 37.

    High: 37 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 30.

    Low: 30 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 41.

    High: 41 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 32.

    Low: 32 °F

    Mostly Clear

Detailed Forecast

Overnight
Areas of freezing fog. Mostly cloudy, with a low around 24. Northwest wind around 7 mph.
Saturday
Areas of freezing fog before 9am. Mostly sunny, with a high near 29. North wind 3 to 6 mph.
Saturday Night
Partly cloudy, with a low around 23. East southeast wind around 5 mph.
Sunday
Mostly sunny, with a high near 33. East southeast wind around 7 mph.
Sunday Night
Partly cloudy, with a low around 27. East southeast wind around 7 mph.
Monday
Sunny, with a high near 37.
Monday Night
Mostly clear, with a low around 30.
Tuesday
Sunny, with a high near 41.
Tuesday Night
Mostly clear, with a low around 32.
Wednesday
Sunny, with a high near 43.
Wednesday Night
Mostly cloudy, with a low around 32.
New Year's Day
Snow showers likely. Partly sunny, with a high near 38.
Thursday Night
Snow showers likely. Mostly cloudy, with a low around 32.
Friday
A chance of snow showers. Mostly cloudy, with a high near 34.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
15 Miles ESE Happy Camp CA
 41.74°N 123.07°W (Elev. 5745 ft)
Last Update:
10:26 pm PST Dec 26, 2025
Forecast Valid:
12am PST Dec 27, 2025-6pm PST Jan 2, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation