Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

Heavy lake-effect and lake-enhanced snow will persist downwind of the Great Lakes and produce some whiteout conditions that could cause difficult travel conditions. A coastal low will produce moderate to heavy snow over parts of southern and eastern New England into the afternoon. Below average temperatures are expected across the eastern U.S., particularly with chilly morning temperatures. Read More >

Current conditions at

Montague Siskiyou County Airport (KSIY)

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

Clear

27°F

-3°C

Humidity 92%
Wind Speed N 0 MPH
Barometer 30.28 in (1025.4 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 18 Jan 09:50 PM PST
Extended Forecast for

16 Miles NNE Weed CA

  • Tonight

    Tonight: Clear, with a low around 34. Northeast wind around 9 mph.

    Low: 34 °F

    Clear

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 55. Northeast wind 8 to 11 mph.

    High: 55 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 34. East northeast wind around 9 mph.

    Low: 34 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 53. East northeast wind around 5 mph becoming calm  in the morning.

    High: 53 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 34. South southeast wind around 5 mph.

    Low: 34 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 52.

    High: 52 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 35.

    Low: 35 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 52.

    High: 52 °F

    Sunny

  • Thursday Night

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

    Low: 32 °F

    Mostly Clear

Detailed Forecast

Tonight
Clear, with a low around 34. Northeast wind around 9 mph.
M.L.King Day
Sunny, with a high near 55. Northeast wind 8 to 11 mph.
Monday Night
Mostly clear, with a low around 34. East northeast wind around 9 mph.
Tuesday
Mostly sunny, with a high near 53. East northeast wind around 5 mph becoming calm in the morning.
Tuesday Night
Partly cloudy, with a low around 34. South southeast wind around 5 mph.
Wednesday
Partly sunny, with a high near 52.
Wednesday Night
Partly cloudy, with a low around 35.
Thursday
Sunny, with a high near 52.
Thursday Night
Mostly clear, with a low around 32.
Friday
Sunny, with a high near 48.
Friday Night
Partly cloudy, with a low around 32.
Saturday
Mostly sunny, with a high near 47.
Saturday Night
Partly cloudy, with a low around 32.
Sunday
A slight chance of rain and snow. Mostly sunny, with a high near 48.
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ABOUT THIS FORECAST

 
Point Forecast:
16 Miles NNE Weed CA
 41.61°N 122.23°W (Elev. 4816 ft)
9:56 pm PST Jan 18, 2026
10pm PST Jan 18, 2026-6pm PST Jan 25, 2026
 
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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