Dangerous Fire Conditions in the Southern High Plains; Severe Weather in the Central Plains and Upper Midwest; Late-Season Mountain Snow

Dry and windy conditions will produce dangerous fire weather conditions across the southern High Plains into the Southwest. Severe storms, including very large hail, strong tornadoes, and winds, are expected in the central Plains into the Upper Midwest. Heavy late-season snow and record cold temperatures are expected in the northern to central Rockies. Heat is spreading across the eastern U.S.. Read More >

Current conditions at

Montague Siskiyou County Airport (KSIY)

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

Clear

63°F

17°C

Humidity 27%
Wind Speed N 21 MPH
Barometer 30.07 in (1018.29 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 17 May 05:20 PM PDT
Extended Forecast for

Etna CA

  • Tonight

    Tonight: Mostly clear, with a low around 35. North wind 15 to 20 mph becoming light and variable  after midnight. Winds could gust as high as 34 mph.

    Low: 35 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 71. Calm wind becoming north northeast 5 to 9 mph in the morning.

    High: 71 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 40. North wind 5 to 10 mph becoming light northeast  in the evening. Winds could gust as high as 20 mph.

    Low: 40 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 77. Calm wind becoming north around 6 mph in the afternoon.

    High: 77 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 46. North wind 5 to 8 mph becoming calm  in the evening.

    Low: 46 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 49.

    Low: 49 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 50.

    Low: 50 °F

    Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 35. North wind 15 to 20 mph becoming light and variable after midnight. Winds could gust as high as 34 mph.
Monday
Sunny, with a high near 71. Calm wind becoming north northeast 5 to 9 mph in the morning.
Monday Night
Mostly clear, with a low around 40. North wind 5 to 10 mph becoming light northeast in the evening. Winds could gust as high as 20 mph.
Tuesday
Sunny, with a high near 77. Calm wind becoming north around 6 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 46. North wind 5 to 8 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 82.
Wednesday Night
Clear, with a low around 49.
Thursday
Sunny, with a high near 86.
Thursday Night
Clear, with a low around 50.
Friday
Sunny, with a high near 86.
Friday Night
Mostly clear, with a low around 51.
Saturday
Sunny, with a high near 85.
Saturday Night
Mostly clear, with a low around 50.
Sunday
Sunny, with a high near 84.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Etna CA
 41.46°N 122.9°W (Elev. 3061 ft)
4:40 pm PDT May 17, 2026
5pm PDT May 17, 2026-6pm PDT May 24, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database