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

Watching Hurricane Erin; Heavy Rainfall Threat for Upper Midwest; Heatrisk for Mississippi Valley

Hurricane Erin continues to track westward with its outer bands bringing heavy rainfall and gusty winds for Puerto Rico and US Virgin Islands. Life-threatening surf and rip currents are occurring and will spread across the Atlantic coasts this week. Meanwhile, heavy rainfall and possible flooding are in the forecast for upper Midwest through Monday. Heatrisk continues for the Mississippi Valley. Read More >

Current conditions at

LYONS VALLEY (COWC1)

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

NA

73°F

23°C

Humidity 47%
Wind Speed W 13 MPH
Barometer NA
Dewpoint 52°F (11°C)
Visibility NA
Last update 17 Aug 04:01 PM PDT
Extended Forecast for

3 Miles ENE Hopland CA

  • Tonight

    Tonight: Mostly clear, with a low around 50. West northwest wind 10 to 15 mph becoming light and variable in the evening. Winds could gust as high as 21 mph.

    Low: 50 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 83. Light and variable wind becoming west 6 to 11 mph in the morning.

    High: 83 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 51. West northwest wind 8 to 13 mph becoming light and variable in the evening. Winds could gust as high as 18 mph.

    Low: 51 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 88. Light and variable wind becoming west 6 to 11 mph in the afternoon.

    High: 88 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 55. Breezy, with a west wind 12 to 17 mph becoming light north northwest in the evening. Winds could gust as high as 24 mph.

    Low: 55 °F

    Clear and
    Breezy then
    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 94. Calm wind becoming west 5 to 8 mph in the afternoon.

    High: 94 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 59.

    Low: 59 °F

    Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 99.

    High: 99 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 50. West northwest wind 10 to 15 mph becoming light and variable in the evening. Winds could gust as high as 21 mph.
Monday
Sunny, with a high near 83. Light and variable wind becoming west 6 to 11 mph in the morning.
Monday Night
Clear, with a low around 51. West northwest wind 8 to 13 mph becoming light and variable in the evening. Winds could gust as high as 18 mph.
Tuesday
Sunny, with a high near 88. Light and variable wind becoming west 6 to 11 mph in the afternoon.
Tuesday Night
Clear, with a low around 55. Breezy, with a west wind 12 to 17 mph becoming light north northwest in the evening. Winds could gust as high as 24 mph.
Wednesday
Sunny, with a high near 94. Calm wind becoming west 5 to 8 mph in the afternoon.
Wednesday Night
Clear, with a low around 59.
Thursday
Sunny and hot, with a high near 99.
Thursday Night
Mostly clear, with a low around 61.
Friday
Sunny and hot, with a high near 100.
Friday Night
Mostly clear, with a low around 61.
Saturday
Sunny, with a high near 98.
Saturday Night
Mostly clear, with a low around 60.
Sunday
Sunny, with a high near 97.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ENE Hopland CA
 38.98°N 123.05°W (Elev. 1129 ft)
Last Update:
11:35 am PDT Aug 17, 2025
Forecast Valid:
4pm PDT Aug 17, 2025-6pm PDT Aug 24, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation