National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heavy Rainfall Threat Continues in the Southwest on Monday; Record Warmth in the Plains and Midwest

Remnant moisture from Tropical Storm Rachel will persist over portions of the Great Basin and Southwest on Monday, bringing a potential heavy to excessive rainfall risk. Well above average and potentially record breaking temperatures will develop across the Plains and Midwest early this week, spreading into the Lower Mississippi Valley and Southeast midweek. Read More >

Hazardous Weather Conditions

Current conditions at

LYONS VALLEY (COWC1)

Lat: 39.12583°NLon: 123.07333°WElev: 3355.0ft.

NA

52°F

11°C

Humidity 25%
Wind Speed NE 7 MPH
Barometer NA
Dewpoint 17°F (-8°C)
Visibility NA
Last update 12 Oct 12:01 AM PDT
Extended Forecast for

4 Miles ENE Calpella CA

Frost Advisory October 12, 01:00am until October 12, 09:00am
Click here for hazard details and duration
Frost Advisory

  • Overnight

    Overnight: Mostly clear, with a low around 43. Calm wind.

    Low: 43 °F

    Mostly Clear

  • Columbus Day

    Columbus Day: Sunny, with a high near 73. Calm wind becoming west 5 to 7 mph in the afternoon.

    High: 73 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 42. West wind around 6 mph becoming calm in the evening.

    Low: 42 °F

    Mostly Clear

  • Tuesday

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

    High: 77 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 48. West wind 5 to 7 mph becoming calm in the evening.

    Low: 48 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 86. Light and variable wind.

    High: 86 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 51.

    Low: 51 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 92.

    High: 92 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 52.

    Low: 52 °F

    Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 43. Calm wind.
Columbus Day
Sunny, with a high near 73. Calm wind becoming west 5 to 7 mph in the afternoon.
Monday Night
Mostly clear, with a low around 42. West wind around 6 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 77. Calm wind becoming west around 6 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 48. West wind 5 to 7 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 86. Light and variable wind.
Wednesday Night
Clear, with a low around 51.
Thursday
Sunny, with a high near 92.
Thursday Night
Clear, with a low around 52.
Friday
Sunny, with a high near 92.
Friday Night
Clear, with a low around 54.
Saturday
Sunny, with a high near 89.
Saturday Night
Mostly clear, with a low around 51.
Sunday
Sunny, with a high near 82.
Basemap Options
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ENE Calpella CA
 39.24°N 123.12°W (Elev. 997 ft)
Last Update:
11:57 pm PDT Oct 11, 2026
Forecast Valid:
12am PDT Oct 12, 2026-6pm PDT Oct 18, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation