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

Areas of Extreme Heat and Excessive Rainfall Potential

Dangerous and extreme heat will remain across portions of the central U.S. this week, persisting across the mid to lower Mississippi Valley, Gulf Coast, southern Plains and portions of Texas. A heat wave over the Southwest U.S. will peak this weekend. Heavy to excessive rainfall may produce flash flooding from the Delmarva Peninsula north into the Hudson Valley today and tonight. Read More >

Current conditions at

BLACK DIAMOND (PIBC1)

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

NA

79°F

26°C

Humidity 40%
Wind Speed S 13 MPH
Barometer NA
Dewpoint 53°F (12°C)
Visibility NA
Heat Index79°F (26°C)
Last update 28 Jul 01:28 PM PDT
Extended Forecast for

3 Miles NW Discovery Bay CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 94. West wind around 10 mph, with gusts as high as 18 mph.

    High: 94 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 59. West southwest wind 5 to 9 mph becoming light southwest after midnight.

    Low: 59 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 94. Light northwest wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 94 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 60. West southwest wind 5 to 9 mph becoming light after midnight.

    Low: 60 °F

    Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 96. Light west southwest wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 96 °F

    Hot

  • Thursday Night

    Thursday Night: Clear, with a low around 60.

    Low: 60 °F

    Clear

  • Friday

    Friday: Sunny and hot, with a high near 99.

    High: 99 °F

    Hot

  • Friday Night

    Friday Night: Clear, with a low around 62.

    Low: 62 °F

    Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 102.

    High: 102 °F

    Hot

Detailed Forecast

This Afternoon
Sunny, with a high near 94. West wind around 10 mph, with gusts as high as 18 mph.
Tonight
Clear, with a low around 59. West southwest wind 5 to 9 mph becoming light southwest after midnight.
Wednesday
Sunny, with a high near 94. Light northwest wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 18 mph.
Wednesday Night
Clear, with a low around 60. West southwest wind 5 to 9 mph becoming light after midnight.
Thursday
Sunny and hot, with a high near 96. Light west southwest wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 18 mph.
Thursday Night
Clear, with a low around 60.
Friday
Sunny and hot, with a high near 99.
Friday Night
Clear, with a low around 62.
Saturday
Sunny and hot, with a high near 102.
Saturday Night
Clear, with a low around 62.
Sunday
Sunny and hot, with a high near 101.
Sunday Night
Clear, with a low around 62.
Monday
Sunny and hot, with a high near 101.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NW Discovery Bay CA
 37.94°N 121.62°W (Elev. 10 ft)
Last Update:
1:26 pm PDT Jul 28, 2026
Forecast Valid:
2pm PDT Jul 28, 2026-6pm PDT Aug 3, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation