Frigid Airmass to Bring Significantly Colder Temperatures; Heavy Lake-effect Snow; Fire Concerns Across the Central Gulf Coast

A frigid cold airmass will bring significantly colder weather across the eastern two thirds of the country early this week. Temperatures will tie or break many records across the Southeast through tonight. Moderate to heavy lake effect snow will continue downwind of the Great Lakes. Gusty winds and dry conditions will support an elevated fire weather threat across the Central Gulf Coast. Read More >

Current conditions at

LYONS VALLEY (COWC1)

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

NA

65°F

18°C

Humidity 31%
Wind Speed NNE 1 MPH
Barometer NA
Dewpoint 33°F (1°C)
Visibility NA
Last update 10 Nov 06:01 AM PST
Extended Forecast for

5 Miles SW Lakeport CA

  • Today

    Today: Partly sunny, with a high near 72. Light and variable wind.

    High: 72 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 59. Calm wind.

    Low: 59 °F

    Mostly Cloudy

  • Veterans Day

    Veterans Day: Mostly cloudy, with a high near 68. Calm wind becoming south southwest 5 to 7 mph in the afternoon.

    High: 68 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 50. South southeast wind 5 to 7 mph.

    Low: 50 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Rain, mainly after 10am.  High near 54. South southeast wind 9 to 15 mph, with gusts as high as 24 mph.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 54 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain before 10pm, then showers and possibly a thunderstorm after 10pm. Some of the storms could produce heavy rainfall.  Low around 43. Windy, with a southwest wind 20 to 24 mph, with gusts as high as 39 mph.  Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    Low: 43 °F

    Heavy Rain
    and Windy

  • Thursday

    Thursday: Rain, mainly before 4pm.  High near 46. Breezy.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 46 °F

    Rain and
    Breezy

  • Thursday Night

    Thursday Night: Rain likely, mainly after 10pm.  Mostly cloudy, with a low around 41.

    Low: 41 °F

    Rain Likely

  • Friday

    Friday: A chance of rain.  Partly sunny, with a high near 46.

    High: 46 °F

    Chance Rain

Detailed Forecast

Today
Partly sunny, with a high near 72. Light and variable wind.
Tonight
Mostly cloudy, with a low around 59. Calm wind.
Veterans Day
Mostly cloudy, with a high near 68. Calm wind becoming south southwest 5 to 7 mph in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 50. South southeast wind 5 to 7 mph.
Wednesday
Rain, mainly after 10am. High near 54. South southeast wind 9 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Rain before 10pm, then showers and possibly a thunderstorm after 10pm. Some of the storms could produce heavy rainfall. Low around 43. Windy, with a southwest wind 20 to 24 mph, with gusts as high as 39 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Thursday
Rain, mainly before 4pm. High near 46. Breezy. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
Rain likely, mainly after 10pm. Mostly cloudy, with a low around 41.
Friday
A chance of rain. Partly sunny, with a high near 46.
Friday Night
A chance of rain, mainly before 10pm. Mostly cloudy, with a low around 44.
Saturday
A slight chance of rain. Partly sunny, with a high near 51.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 47.
Sunday
Rain likely. Mostly cloudy, with a high near 48.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SW Lakeport CA
 38.99°N 122.99°W (Elev. 2595 ft)
1:10 am PST Nov 10, 2025
6am PST Nov 10, 2025-6pm PST Nov 16, 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