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Critical Fire Weather Conditions in the Plains; Increasing Severe Weather Chances for the Plains and Upper Midwest

A strengthening storm system will bring impactful weather to the much of Central U.S. over the next couple of days, including heavy snow in the northern Rockies, Critical fire weather conditions for portions of the Plains, and increasing severe weather chances from the central/southern Plains to the Upper Midwest. Read More >

Hazardous Weather Conditions

Current conditions at

LYONS VALLEY (COWC1)

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

NA

45°F

7°C

Humidity 70%
Wind Speed NNW 12 MPH
Barometer NA
Dewpoint 36°F (2°C)
Visibility NA
Wind Chill39°F (4°C)
Last update 23 Apr 03:01 AM PDT
Extended Forecast for

5 Miles SE Hopland CA

Frost Advisory until April 23, 08:00am
Click here for hazard details and duration
Frost Advisory
  •  
    Frost Advisory until April 23, 08:00am

    NOW until 8:00am Thu

    Frost Advisory

  • Overnight

    Low: 38 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 71. Northwest wind 6 to 10 mph.

    High: 71 °F

    Sunny

  • Thursday Night

    Thursday Night: Patchy fog after 2am. Otherwise, partly cloudy, with a low around 44. Northwest wind 8 to 13 mph becoming light north in the evening.

    Low: 44 °F

    Partly Cloudy
    then Patchy
    Fog

  • Friday

    Friday: Patchy fog before 11am. Otherwise, partly sunny, with a high near 70. Calm wind becoming south southwest around 6 mph in the afternoon.

    High: 70 °F

    Patchy Fog
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Patchy fog after 2am. Otherwise, partly cloudy, with a low around 46. Southwest wind around 6 mph becoming calm in the evening.

    Low: 46 °F

    Partly Cloudy
    then Patchy
    Fog

  • Saturday

    Saturday: Patchy fog before 11am. Otherwise, partly sunny, with a high near 64. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 64 °F

    Patchy Fog
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 45.

    Low: 45 °F

    Mostly Cloudy

  • Sunday

    Sunday: A slight chance of showers before 11am. Mostly sunny, with a high near 63.

    High: 63 °F

    Slight Chance
    Showers then
    Mostly Sunny

Detailed Forecast

Overnight
Mostly clear, with a low around 38. North northeast wind around 7 mph.
Thursday
Sunny, with a high near 71. Northwest wind 6 to 10 mph.
Thursday Night
Patchy fog after 2am. Otherwise, partly cloudy, with a low around 44. Northwest wind 8 to 13 mph becoming light north in the evening.
Friday
Patchy fog before 11am. Otherwise, partly sunny, with a high near 70. Calm wind becoming south southwest around 6 mph in the afternoon.
Friday Night
Patchy fog after 2am. Otherwise, partly cloudy, with a low around 46. Southwest wind around 6 mph becoming calm in the evening.
Saturday
Patchy fog before 11am. Otherwise, partly sunny, with a high near 64. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Saturday Night
Mostly cloudy, with a low around 45.
Sunday
A slight chance of showers before 11am. Mostly sunny, with a high near 63.
Sunday Night
Patchy fog after 2am. Otherwise, partly cloudy, with a low around 42.
Monday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 66.
Monday Night
Patchy fog. Otherwise, partly cloudy, with a low around 44.
Tuesday
Patchy fog. Otherwise, mostly sunny, with a high near 70.
Tuesday Night
Partly cloudy, with a low around 45.
Wednesday
Mostly sunny, with a high near 70.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SE Hopland CA
 38.91°N 123.06°W (Elev. 889 ft)
Last Update:
2:10 am PDT Apr 23, 2026
Forecast Valid:
3am PDT Apr 23, 2026-6pm PDT Apr 29, 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