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

Dangerous Heat in the East; Critical Fire Weather in the Southwest

Dangerous, record-breaking heat will intensify across most of the central and eastern U.S this week. Heat indices will likely exceed 100 degrees. Heat is likely to continue across the eastern U.S. through the Independence Day holiday weekend. Critical fire weather conditions will continue today and likely Tuesday across portions of the Four Corners and northern High Plains. Read More >

Current conditions at

BLACK DIAMOND (PIBC1)

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

NA

69°F

21°C

Humidity 37%
Wind Speed WSW 4 MPH
Barometer NA
Dewpoint 42°F (6°C)
Visibility NA
Last update 29 Jun 08:28 AM PDT
Extended Forecast for

2 Miles NNW Discovery Bay CA

  • Today

    Today: Sunny, with a high near 90. Northwest wind 5 to 9 mph.

    High: 90 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 58. West wind 5 to 10 mph becoming light southwest after midnight. Winds could gust as high as 18 mph.

    Low: 58 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 90. Light west southwest wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 21 mph.

    High: 90 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 56. West wind 8 to 13 mph becoming light west southwest after midnight. Winds could gust as high as 21 mph.

    Low: 56 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 87. Calm wind becoming west 5 to 7 mph in the afternoon.

    High: 87 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 55.

    Low: 55 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 56.

    Low: 56 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 90. Northwest wind 5 to 9 mph.
Tonight
Mostly clear, with a low around 58. West wind 5 to 10 mph becoming light southwest after midnight. Winds could gust as high as 18 mph.
Tuesday
Sunny, with a high near 90. Light west southwest wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 21 mph.
Tuesday Night
Clear, with a low around 56. West wind 8 to 13 mph becoming light west southwest after midnight. Winds could gust as high as 21 mph.
Wednesday
Sunny, with a high near 87. Calm wind becoming west 5 to 7 mph in the afternoon.
Wednesday Night
Clear, with a low around 55.
Thursday
Sunny, with a high near 86.
Thursday Night
Clear, with a low around 56.
Friday
Sunny, with a high near 89.
Friday Night
Clear, with a low around 58.
Independence Day
Sunny, with a high near 92.
Saturday Night
Mostly clear, with a low around 59.
Sunday
Sunny, with a high near 89.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNW Discovery Bay CA
 37.94°N 121.62°W (Elev. 10 ft)
Last Update:
7:52 am PDT Jun 29, 2026
Forecast Valid:
9am PDT Jun 29, 2026-6pm PDT Jul 5, 2026
 
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