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

BLACK DIAMOND (PIBC1)

Lat: 37.95°NLon: 121.88444°WElev: 1600.0ft.

NA

60°F

16°C

Humidity 64%
Wind Speed S 14 MPH
Barometer NA
Dewpoint 48°F (9°C)
Visibility NA
Last update 17 Aug 11:28 PM PDT
Extended Forecast for

4 Miles NNE Bethel Island CA

  • Overnight

    Overnight: Clear, with a low around 58. West southwest wind around 16 mph, with gusts as high as 23 mph.

    Low: 58 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 80. West wind 7 to 11 mph, with gusts as high as 18 mph.

    High: 80 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 57. Southwest wind 7 to 14 mph, with gusts as high as 21 mph.

    Low: 57 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 82. West wind 7 to 10 mph.

    High: 82 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 58. West southwest wind 7 to 14 mph, with gusts as high as 21 mph.

    Low: 58 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 62.

    Low: 62 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 95.

    High: 95 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

Detailed Forecast

Overnight
Clear, with a low around 58. West southwest wind around 16 mph, with gusts as high as 23 mph.
Monday
Sunny, with a high near 80. West wind 7 to 11 mph, with gusts as high as 18 mph.
Monday Night
Clear, with a low around 57. Southwest wind 7 to 14 mph, with gusts as high as 21 mph.
Tuesday
Sunny, with a high near 82. West wind 7 to 10 mph.
Tuesday Night
Clear, with a low around 58. West southwest wind 7 to 14 mph, with gusts as high as 21 mph.
Wednesday
Sunny, with a high near 91.
Wednesday Night
Clear, with a low around 62.
Thursday
Sunny, with a high near 95.
Thursday Night
Mostly clear, with a low around 63.
Friday
Sunny, with a high near 94.
Friday Night
Clear, with a low around 63.
Saturday
Sunny, with a high near 91.
Saturday Night
Clear, with a low around 61.
Sunday
Sunny, with a high near 89.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNE Bethel Island CA
 38.08°N 121.6°W (Elev. -6 ft)
Last Update:
1:26 pm PDT Aug 17, 2025
Forecast Valid:
12am PDT Aug 18, 2025-6pm PDT Aug 24, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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