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

47°F

8°C

Humidity 55%
Wind Speed N 0 MPH
Barometer 30.27 in (1025.06 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 19 Jan 12:53 PM PST
Extended Forecast for

11 Miles NNW Yreka CA

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 59. Light east wind.

    High: 59 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 28. East wind 3 to 5 mph.

    Low: 28 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 53. Light east southeast wind.

    High: 53 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 28. Calm wind.

    Low: 28 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 53. Light east southeast wind.

    High: 53 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 29.

    Low: 29 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 58.

    High: 58 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 35.

    Low: 35 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 55.

    High: 55 °F

    Sunny

Detailed Forecast

M.L.King Day
Sunny, with a high near 59. Light east wind.
Tonight
Mostly clear, with a low around 28. East wind 3 to 5 mph.
Tuesday
Mostly sunny, with a high near 53. Light east southeast wind.
Tuesday Night
Mostly cloudy, with a low around 28. Calm wind.
Wednesday
Partly sunny, with a high near 53. Light east southeast wind.
Wednesday Night
Mostly cloudy, with a low around 29.
Thursday
Mostly sunny, with a high near 58.
Thursday Night
Mostly clear, with a low around 35.
Friday
Sunny, with a high near 55.
Friday Night
Mostly clear, with a low around 35.
Saturday
Mostly sunny, with a high near 56.
Saturday Night
Mostly cloudy, with a low around 32.
Sunday
Partly sunny, with a high near 56.
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles NNW Yreka CA
 41.86°N 122.75°W (Elev. 2001 ft)
12:41 pm PST Jan 19, 2026
1pm PST Jan 19, 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