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

Hazardous Weather Conditions

Current conditions at

LYONS VALLEY (COWC1)

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

NA

31°F

-1°C

Humidity 99%
Wind Speed ESE 13 MPH
Barometer NA
Dewpoint 31°F (-1°C)
Visibility NA
Wind Chill21°F (-6°C)
Last update 21 Feb 04:01 AM PST
Extended Forecast for

4 Miles SE Hopland CA

Flood Watch February 23, 10:00pm until February 25, 12:00am
Click here for hazard details and duration
Flood Watch

  • Overnight

    Overnight: Rain. Low around 42. South southeast wind around 15 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 42 °F

    Rain

  • Sunday

    Sunday: Rain, mainly before 1pm. High near 54. South southeast wind 8 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 54 °F

    Rain then
    Rain Likely

  • Sunday Night

    Sunday Night: A 40 percent chance of rain, mainly before 1am. Cloudy, with a low around 46. Southeast wind around 6 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 46 °F

    Chance Rain

  • Monday

    Monday: A slight chance of rain before 10am, then rain likely after 4pm. Mostly cloudy, with a high near 62. South southeast wind 5 to 8 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 62 °F

    Slight Chance
    Rain then
    Rain Likely

  • Monday Night

    Monday Night: Rain. Low around 49. South southeast wind around 8 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 49 °F

    Rain

  • Tuesday

    Tuesday: Rain. High near 57. South wind 7 to 9 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

    High: 57 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain. Patchy fog after 4am. Low around 47. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 47 °F

    Rain then
    Rain Likely
    and Patchy
    Fog

  • Wednesday

    Wednesday: A chance of rain. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 64.

    High: 64 °F

    Chance Rain
    and Patchy
    Fog

  • Wednesday Night

    Wednesday Night: A chance of rain, mainly before 10pm. Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 45.

    Low: 45 °F

    Chance Rain
    and Patchy
    Fog

Detailed Forecast

Overnight
Rain. Low around 42. South southeast wind around 15 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Rain, mainly before 1pm. High near 54. South southeast wind 8 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
A 40 percent chance of rain, mainly before 1am. Cloudy, with a low around 46. Southeast wind around 6 mph. New precipitation amounts of less than a tenth of an inch possible.
Monday
A slight chance of rain before 10am, then rain likely after 4pm. Mostly cloudy, with a high near 62. South southeast wind 5 to 8 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Rain. Low around 49. South southeast wind around 8 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Tuesday
Rain. High near 57. South wind 7 to 9 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Tuesday Night
Rain. Patchy fog after 4am. Low around 47. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
A chance of rain. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 64.
Wednesday Night
A chance of rain, mainly before 10pm. Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 45.
Thursday
A slight chance of rain. Patchy fog before 10am. Otherwise, partly sunny, with a high near 68.
Thursday Night
A slight chance of rain. Mostly cloudy, with a low around 46.
Friday
Mostly sunny, with a high near 71.
Friday Night
A slight chance of rain. Mostly cloudy, with a low around 48.
Saturday
A slight chance of rain. Partly sunny, with a high near 70.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SE Hopland CA
 38.94°N 123.06°W (Elev. 597 ft)
Last Update:
1:10 am PST Feb 22, 2026
Forecast Valid:
5am PST Feb 22, 2026-6pm PST Feb 28, 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