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

Atmospheric River to Begin to Impact the Northwest U.S.; Gusty Winds in the Northeast U.S.

A strong atmospheric river moving into northern California later Tuesday will bring a threat for moderate to heavy rainfall and flooding, gusty to high winds, and mountain snows for parts of the Northwest U.S. through at least Wednesday. Gusty winds and isolated rain and snow showers will continue in the Northeast U.S. Tuesday behind a cold front. Read More >

Hazardous Weather Conditions

Current conditions at

LYONS VALLEY (COWC1)

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

NA

49°F

9°C

Humidity 98%
Wind Speed WSW 13 MPH
Barometer NA
Dewpoint 48°F (9°C)
Visibility NA
Wind Chill44°F (7°C)
Last update 03 Nov 09:01 PM PST
Extended Forecast for

2 Miles N Hopland CA

Flood Watch November 5, 12:00am until November 5, 10:00am
Wind Advisory November 4, 07:00pm until November 5, 12:00pm
Click here for hazard details and duration
Flood Watch
Wind Advisory

  • Tonight

    Tonight: Rain likely, mainly after 10pm. Cloudy, with a low around 51. Light south southeast wind becoming east southeast 5 to 9 mph in the evening. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 51 °F

    Rain Likely

  • Tuesday

    Tuesday: Rain likely, mainly before 10am. Cloudy, with a high near 65. Breezy, with a south southeast wind 14 to 18 mph, with gusts as high as 31 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 65 °F

    Breezy. Rain
    Likely then
    Chance Rain

  • Tuesday Night

    Tuesday Night: Rain, mainly after 10pm. The rain could be heavy at times. Low around 51. Windy, with a south southeast wind 22 to 29 mph, with gusts as high as 49 mph. Chance of precipitation is 90%. New precipitation amounts between 1 and 2 inches possible.

    Low: 51 °F

    Heavy Rain
    and Windy

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. High near 62. South southwest wind around 14 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 62 °F

    Showers

  • Wednesday Night

    Wednesday Night: A 50 percent chance of rain. Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 48. Southwest wind 5 to 7 mph becoming calm in the evening. New precipitation amounts of less than a tenth of an inch possible.

    Low: 48 °F

    Chance Rain
    and Patchy
    Fog

  • Thursday

    Thursday: Areas of fog before 10am. Otherwise, mostly sunny, with a high near 68. Light and variable wind.

    High: 68 °F

    Areas Fog
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of rain, mainly after 4am. Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 47.

    Low: 47 °F

    Chance Rain
    and Patchy
    Fog

  • Friday

    Friday: A chance of rain, mainly before 10am. Areas of fog before 10am. Otherwise, mostly cloudy, with a high near 67.

    High: 67 °F

    Chance Rain
    and Areas Fog

  • Friday Night

    Friday Night: Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 47.

    Low: 47 °F

    Patchy Fog

Detailed Forecast

Tonight
Rain likely, mainly after 10pm. Cloudy, with a low around 51. Light south southeast wind becoming east southeast 5 to 9 mph in the evening. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
Rain likely, mainly before 10am. Cloudy, with a high near 65. Breezy, with a south southeast wind 14 to 18 mph, with gusts as high as 31 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
Rain, mainly after 10pm. The rain could be heavy at times. Low around 51. Windy, with a south southeast wind 22 to 29 mph, with gusts as high as 49 mph. Chance of precipitation is 90%. New precipitation amounts between 1 and 2 inches possible.
Wednesday
Showers and possibly a thunderstorm. High near 62. South southwest wind around 14 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday Night
A 50 percent chance of rain. Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 48. Southwest wind 5 to 7 mph becoming calm in the evening. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Areas of fog before 10am. Otherwise, mostly sunny, with a high near 68. Light and variable wind.
Thursday Night
A 30 percent chance of rain, mainly after 4am. Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 47.
Friday
A chance of rain, mainly before 10am. Areas of fog before 10am. Otherwise, mostly cloudy, with a high near 67.
Friday Night
Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 47.
Saturday
Patchy fog before 10am. Otherwise, partly sunny, with a high near 74.
Saturday Night
A slight chance of rain. Mostly cloudy, with a low around 48.
Sunday
A chance of rain. Mostly cloudy, with a high near 70.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 49.
Monday
A chance of rain. Partly sunny, with a high near 71.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles N Hopland CA
 39°N 123.11°W (Elev. 489 ft)
Last Update:
1:20 pm PST Nov 3, 2025
Forecast Valid:
9pm PST Nov 3, 2025-6pm PST Nov 10, 2025
 
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Additional Resources

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Chance of Precipitation