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

Extreme Heat and Severe Thunderstorms Today

Extreme heat continues today from the central Plains to the lower Mississippi River Valley, over southeast Montana, and from southern California into the Southwest Deserts. Extreme Heat Warnings remain in effect. Severe thunderstorms capable of strong to severe wind gusts and large hail are possible across the Great Lakes into the Ohio Valley today into tonight. Read More >

Current conditions at

BLACK DIAMOND (PIBC1)

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

NA

75°F

24°C

Humidity 42%
Wind Speed S 18 MPH
Barometer NA
Dewpoint 50°F (10°C)
Visibility NA
Last update 27 Jul 01:28 PM PDT
Extended Forecast for

4 Miles SW Discovery Bay CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 90. West southwest wind 11 to 13 mph, with gusts as high as 22 mph.

    High: 90 °F

    Sunny

  • Tonight

    Tonight: Clear. West southwest wind 8 to 11 mph, with gusts as high as 21 mph.

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 92. West southwest wind 7 to 11 mph, with gusts as high as 21 mph.

    High: 92 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 61. West southwest wind 5 to 11 mph, with gusts as high as 21 mph.

    Low: 61 °F

    Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 96. West wind 3 to 7 mph.

    High: 96 °F

    Hot

  • Wednesday Night

    Wednesday Night: Clear, with a low around 62.

    Low: 62 °F

    Clear

  • Thursday

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

    High: 96 °F

    Hot

  • Thursday Night

    Thursday Night: Clear, with a low around 61.

    Low: 61 °F

    Clear

  • Friday

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

    High: 102 °F

    Hot

Detailed Forecast

This Afternoon
Sunny, with a high near 90. West southwest wind 11 to 13 mph, with gusts as high as 22 mph.
Tonight
Clear. West southwest wind 8 to 11 mph, with gusts as high as 21 mph.
Tuesday
Sunny, with a high near 92. West southwest wind 7 to 11 mph, with gusts as high as 21 mph.
Tuesday Night
Clear, with a low around 61. West southwest wind 5 to 11 mph, with gusts as high as 21 mph.
Wednesday
Sunny and hot, with a high near 96. West wind 3 to 7 mph.
Wednesday Night
Clear, with a low around 62.
Thursday
Sunny and hot, with a high near 96.
Thursday Night
Clear, with a low around 61.
Friday
Sunny and hot, with a high near 102.
Friday Night
Clear, with a low around 64.
Saturday
Sunny and hot, with a high near 102.
Saturday Night
Clear, with a low around 65.
Sunday
Sunny and hot, with a high near 102.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SW Discovery Bay CA
 37.87°N 121.63°W (Elev. 16 ft)
Last Update:
1:25 pm PDT Jul 27, 2026
Forecast Valid:
2pm PDT Jul 27, 2026-6pm PDT Aug 2, 2026
 
Forecast Discussion
 
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Additional Resources

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