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

64°F

18°C

Humidity 49%
Wind Speed S 12 MPH
Barometer NA
Dewpoint 44°F (7°C)
Visibility NA
Last update 17 Aug 08:28 AM PDT
Extended Forecast for

Antioch CA

  • Today

    Today: Sunny, with a high near 78. West southwest wind 13 to 18 mph, with gusts as high as 23 mph.

    High: 78 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 59. West southwest wind 15 to 17 mph, with gusts as high as 26 mph.

    Low: 59 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 82. West wind 8 to 13 mph, with gusts as high as 20 mph.

    High: 82 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 60. West southwest wind 7 to 14 mph, with gusts as high as 22 mph.

    Low: 60 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 84. West wind 7 to 10 mph, with gusts as high as 18 mph.

    High: 84 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 60.

    Low: 60 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 93.

    High: 93 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 65.

    Low: 65 °F

    Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 97.

    High: 97 °F

    Hot

Detailed Forecast

Today
Sunny, with a high near 78. West southwest wind 13 to 18 mph, with gusts as high as 23 mph.
Tonight
Clear, with a low around 59. West southwest wind 15 to 17 mph, with gusts as high as 26 mph.
Monday
Sunny, with a high near 82. West wind 8 to 13 mph, with gusts as high as 20 mph.
Monday Night
Clear, with a low around 60. West southwest wind 7 to 14 mph, with gusts as high as 22 mph.
Tuesday
Sunny, with a high near 84. West wind 7 to 10 mph, with gusts as high as 18 mph.
Tuesday Night
Clear, with a low around 60.
Wednesday
Sunny, with a high near 93.
Wednesday Night
Clear, with a low around 65.
Thursday
Sunny and hot, with a high near 97.
Thursday Night
Clear, with a low around 65.
Friday
Sunny and hot, with a high near 96.
Friday Night
Clear, with a low around 64.
Saturday
Sunny, with a high near 93.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Antioch CA
 38°N 121.81°W (Elev. 36 ft)
Last Update:
2:33 am PDT Aug 17, 2025
Forecast Valid:
9am PDT Aug 17, 2025-6pm PDT Aug 23, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation