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

Erin Strengthens to a Hurricane; Heavy Rainfall Possible in Puerto Rico and the Virgin Islands, the Upper Midwest, South Texas

Hurricane Erin may bring isolated flash and urban flooding, landslides or mudslides, and possible tropical storm conditions to Puerto Rico and the U.S. Virgin Islands this weekend. Scattered thunderstorms and heavy rainfall may bring areas of flooding this weekend over the Upper Midwest. A tropical disturbance will bring locally heavy rain and mainly urban flash flooding to far southern Texas. Read More >

Current conditions at

HELL HOLE (HLLC1)

Lat: 39.06971°NLon: 120.41989°WElev: 5240.0ft.

NA

61°F

16°C

Humidity 55%
Wind Speed N 1 MPH
Barometer NA
Dewpoint 45°F (7°C)
Visibility NA
Last update 15 Aug 11:09 PM PDT
Extended Forecast for

Donner Summit CA

  • Overnight

    Overnight: Mostly clear, with a low around 47. Calm wind.

    Low: 47 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 70. Calm wind becoming southwest 5 to 9 mph in the morning. Winds could gust as high as 22 mph.

    High: 70 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 44. Southwest wind around 6 mph becoming calm after midnight.

    Low: 44 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 67. Calm wind becoming southwest 5 to 8 mph in the morning. Winds could gust as high as 21 mph.

    High: 67 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 45. Southwest wind 3 to 8 mph. Winds could gust as high as 21 mph.

    Low: 45 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 69.

    High: 69 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 45.

    Low: 45 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 72.

    High: 72 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 46.

    Low: 46 °F

    Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 47. Calm wind.
Saturday
Sunny, with a high near 70. Calm wind becoming southwest 5 to 9 mph in the morning. Winds could gust as high as 22 mph.
Saturday Night
Mostly clear, with a low around 44. Southwest wind around 6 mph becoming calm after midnight.
Sunday
Sunny, with a high near 67. Calm wind becoming southwest 5 to 8 mph in the morning. Winds could gust as high as 21 mph.
Sunday Night
Clear, with a low around 45. Southwest wind 3 to 8 mph. Winds could gust as high as 21 mph.
Monday
Sunny, with a high near 69.
Monday Night
Clear, with a low around 45.
Tuesday
Sunny, with a high near 72.
Tuesday Night
Clear, with a low around 46.
Wednesday
Sunny, with a high near 77.
Wednesday Night
Mostly clear, with a low around 51.
Thursday
Sunny, with a high near 80.
Thursday Night
Mostly clear, with a low around 54.
Friday
Sunny, with a high near 81.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Donner Summit CA
 39.33°N 120.37°W (Elev. 6965 ft)
Last Update:
12:21 am PDT Aug 16, 2025
Forecast Valid:
2am PDT Aug 16, 2025-6pm PDT Aug 22, 2025
 
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