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

WHITE CLOUD (CISC1)

Lat: 39.31944°NLon: 120.84211°WElev: 4302.0ft.

NA

68°F

20°C

Humidity 47%
Wind Speed SSE 2 MPH
Barometer NA
Dewpoint 47°F (8°C)
Visibility NA
Last update 17 Aug 06:33 PM PDT
Extended Forecast for

15 Miles NNE Grass Valley CA

  • Tonight

    Tonight: Clear, with a low around 57. Calm wind.

    Low: 57 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 82. Calm wind becoming south southwest around 6 mph in the afternoon.

    High: 82 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 59. Calm wind.

    Low: 59 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 85. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 85 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 60. Light and variable wind.

    Low: 60 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 64.

    Low: 64 °F

    Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 96.

    High: 96 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 69.

    Low: 69 °F

    Mostly Clear

Detailed Forecast

Tonight
Clear, with a low around 57. Calm wind.
Monday
Sunny, with a high near 82. Calm wind becoming south southwest around 6 mph in the afternoon.
Monday Night
Clear, with a low around 59. Calm wind.
Tuesday
Sunny, with a high near 85. Calm wind becoming southwest around 5 mph in the afternoon.
Tuesday Night
Clear, with a low around 60. Light and variable wind.
Wednesday
Sunny, with a high near 90.
Wednesday Night
Clear, with a low around 64.
Thursday
Sunny and hot, with a high near 96.
Thursday Night
Mostly clear, with a low around 69.
Friday
Sunny and hot, with a high near 97.
Friday Night
Mostly clear, with a low around 72.
Saturday
Sunny and hot, with a high near 96.
Saturday Night
Clear, with a low around 70.
Sunday
Sunny, with a high near 93.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
15 Miles NNE Grass Valley CA
 39.42°N 120.95°W (Elev. 2746 ft)
Last Update:
5:21 pm PDT Aug 17, 2025
Forecast Valid:
7pm PDT Aug 17, 2025-6pm PDT Aug 24, 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