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

Heavy Snow in the Sierra Nevada; Heavy Rainfall in Texas Sunday

Heavy snow is expected in the Sierra Nevada mountain ranges into Saturday causing hazardous travel conditions. Winter Storm Warnings have been issued. Thunderstorms and moderate to heavy rainfall are expected across portions of eastern Texas into Louisiana on Sunday. Read More >

Current conditions at

LYONS VALLEY (COWC1)

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

NA

47°F

8°C

Humidity 100%
Wind Speed SE 7 MPH
Barometer NA
Dewpoint 47°F (8°C)
Visibility NA
Wind Chill44°F (7°C)
Last update 14 Nov 11:01 AM PST
Extended Forecast for

10 Miles NNW Lakeport CA

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 57. South southeast wind 5 to 7 mph.

    High: 57 °F

    Mostly Cloudy

  • Tonight

    Tonight: A 40 percent chance of showers after 1am. Cloudy, with a low around 42. Breezy, with a southeast wind 9 to 17 mph. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 42 °F

    Cloudy then
    Chance
    Showers and
    Breezy

  • Sunday

    Sunday: Showers, mainly before 4pm. High near 55. Breezy, with a southeast wind 11 to 16 mph becoming west 5 to 10 mph in the afternoon. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 55 °F

    Showers and
    Breezy

  • Sunday Night

    Sunday Night: A 40 percent chance of showers before 10pm. Patchy frost after 4am. Otherwise, cloudy during the early evening, then gradual clearing, with a low around 36. West northwest wind around 6 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 36 °F

    Chance
    Showers then
    Patchy Frost

  • Monday

    Monday: A 20 percent chance of showers after 10am. Patchy frost before 10am. Otherwise, mostly sunny, with a high near 55. West northwest wind 3 to 7 mph.

    High: 55 °F

    Slight Chance
    Showers

  • Monday Night

    Monday Night: Mostly clear, with a low around 30. North wind around 7 mph.

    Low: 30 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 54.

    High: 54 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Rain, mainly after 10pm. Mostly cloudy, with a low around 37. Breezy.

    Low: 37 °F

    Rain and
    Breezy

  • Wednesday

    Wednesday: Rain. Cloudy, with a high near 50.

    High: 50 °F

    Rain

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 57. South southeast wind 5 to 7 mph.
Tonight
A 40 percent chance of showers after 1am. Cloudy, with a low around 42. Breezy, with a southeast wind 9 to 17 mph. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
Showers, mainly before 4pm. High near 55. Breezy, with a southeast wind 11 to 16 mph becoming west 5 to 10 mph in the afternoon. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
A 40 percent chance of showers before 10pm. Patchy frost after 4am. Otherwise, cloudy during the early evening, then gradual clearing, with a low around 36. West northwest wind around 6 mph. New precipitation amounts of less than a tenth of an inch possible.
Monday
A 20 percent chance of showers after 10am. Patchy frost before 10am. Otherwise, mostly sunny, with a high near 55. West northwest wind 3 to 7 mph.
Monday Night
Mostly clear, with a low around 30. North wind around 7 mph.
Tuesday
Sunny, with a high near 54.
Tuesday Night
Rain, mainly after 10pm. Mostly cloudy, with a low around 37. Breezy.
Wednesday
Rain. Cloudy, with a high near 50.
Wednesday Night
Rain likely, mainly before 10pm. Mostly cloudy, with a low around 33.
Thursday
A chance of rain. Partly sunny, with a high near 51.
Thursday Night
Partly cloudy, with a low around 29.
Friday
Patchy fog. Otherwise, sunny, with a high near 56.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
10 Miles NNW Lakeport CA
 39.17°N 122.98°W (Elev. 1998 ft)
Last Update:
9:42 am PST Nov 14, 2026
Forecast Valid:
12pm PST Nov 14, 2026-6pm PST Nov 20, 2026
 
Forecast Discussion
 
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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation