Winter Storm in the Central Appalachians through the Northeast; Heavy Snow in the Great Basin and Rockies

A winter storm will impact the central Appalachians to the Northeast through the night. Accumulating snow is expected for interior New England and the northern Mid-Atlantic. Scattered showers and occasional thunderstorms will persist across Florida and the Southeast coast. Locally heavy mountain snow is expected in the Great Basin and Rockies over the next couple of days. 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 S 4 MPH
Barometer 30.24 in (1024.04 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill22°F (-6°C)
Last update 03 Dec 12:20 AM PST
Extended Forecast for

Etna CA

  • Overnight

    Overnight: Areas of fog.  Otherwise, partly cloudy, with a low around 27. Calm wind.

    Low: 27 °F

    Areas Fog

  • Wednesday

    Wednesday: Areas of fog before 11am.  Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 48. Calm wind.

    High: 48 °F

    Areas Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 31. Calm wind.

    Low: 31 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 54. Calm wind.

    High: 54 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Patchy fog after 11pm.  Otherwise, partly cloudy, with a low around 36. Calm wind.

    Low: 36 °F

    Patchy Fog

  • Friday

    Friday: A 10 percent chance of showers after 4pm.  Patchy fog before noon.  Otherwise, mostly sunny, with a high near 57.

    High: 57 °F

    Patchy Fog
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: A 30 percent chance of showers, mainly after 10pm.  Patchy fog before 10pm.  Otherwise, mostly cloudy, with a low around 41.

    Low: 41 °F

    Chance
    Showers and
    Patchy Fog

  • Saturday

    Saturday: A chance of showers.  Mostly cloudy, with a high near 56.

    High: 56 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers before 10pm, then a slight chance of showers after 4am.  Mostly cloudy, with a low around 38.

    Low: 38 °F

    Chance
    Showers

Detailed Forecast

Overnight
Areas of fog. Otherwise, partly cloudy, with a low around 27. Calm wind.
Wednesday
Areas of fog before 11am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 48. Calm wind.
Wednesday Night
Partly cloudy, with a low around 31. Calm wind.
Thursday
Mostly sunny, with a high near 54. Calm wind.
Thursday Night
Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 36. Calm wind.
Friday
A 10 percent chance of showers after 4pm. Patchy fog before noon. Otherwise, mostly sunny, with a high near 57.
Friday Night
A 30 percent chance of showers, mainly after 10pm. Patchy fog before 10pm. Otherwise, mostly cloudy, with a low around 41.
Saturday
A chance of showers. Mostly cloudy, with a high near 56.
Saturday Night
A chance of showers before 10pm, then a slight chance of showers after 4am. Mostly cloudy, with a low around 38.
Sunday
A chance of showers, mainly between 10am and 4pm. Patchy fog before noon. Otherwise, partly sunny, with a high near 55.
Sunday Night
A slight chance of showers. Patchy fog. Otherwise, partly cloudy, with a low around 36.
Monday
Patchy fog. Otherwise, mostly sunny, with a high near 57.
Monday Night
Partly cloudy, with a low around 39.
Tuesday
A slight chance of showers. Patchy fog. Otherwise, mostly sunny, with a high near 59.
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ABOUT THIS FORECAST

 
Point Forecast:
Etna CA
 41.46°N 122.9°W (Elev. 3061 ft)
10:31 pm PST Dec 2, 2025
12am PST Dec 3, 2025-6pm PST Dec 9, 2025
 
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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