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

Lake effect snow will continue through Friday bringing significant snowfall to areas east to southeast of the Great Lakes. Snow squalls may impact New Year's Eve travel this evening and overnight across parts of the Great Lakes, Ohio Valley, Mid-Atlantic, and Upstate New York. Heavy rain will bring another flash flooding threat for southern California New Year's Eve into New Year's Day. Read More >

Current conditions at

Montague Siskiyou County Airport (KSIY)

Lat: 41.77375° N Lon: 122.46817° W Elev: 2644.0 ft.

Partly Cloudy

38°F

3°C

Humidity 78%
Wind Speed N 0 MPH
Barometer 30.16 in (1021.34 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 31 Dec 10:53 AM PST
Detailed forecast for

Central Siskiyou County

Today
Mostly cloudy. A 10 percent chance of rain this afternoon. Highs in the mid 40s. Southeast winds around 5 mph.
Tonight
Cloudy. Chance of rain in the evening, then rain likely after midnight. Lows in the mid 30s to lower 40s. East winds 5 to 10 mph. Chance of rain 60 percent.
New Years Day
Rain. Highs in the mid 40s to lower 50s. East winds 10 to 15 mph shifting to the southeast late in the afternoon. Chance of rain 90 percent.
Thursday Night
Mostly cloudy with a 30 percent chance of rain. Snow level 7000 feet after midnight. Lows in the lower to mid 40s. South winds 15 to 20 mph.
Friday
Mostly cloudy with a 50 percent chance of rain. Snow level 6500 feet. Highs in the mid 40s to mid 50s. Windy. In the shasta valley, southeast winds 15 to 25 mph increasing to south 25 to 35 mph in the afternoon. Elsewhere, southeast winds 25 to 35 mph decreasing to 20 to 30 mph in the afternoon.
Friday Night
Rain. Lows in the mid 30s to lower 40s.
Saturday
Rain and snow. Highs in the lower 40s to lower 50s.
Saturday Night
Rain and snow likely. Lows in the mid 30s.
Sunday
Rain and snow likely. Highs in the lower to mid 40s.
Sunday Night
Mostly cloudy. Chance of rain and snow. Lows in the lower to mid 30s.
Monday
Mostly cloudy with a chance of rain and snow. Highs in the lower to mid 40s.
Monday Night
Mostly cloudy with a chance of rain and snow. Lows around 30.
Tuesday
Mostly cloudy in the morning then becoming partly cloudy. Highs in the lower to mid 40s.



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859 AM PST Wed Dec 31 2025
 
 

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