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

Rain Providing Some Relief to Drought-Stricken Southern U.S.

A storm tracking across the southern U.S. will continue to bring areas of heavy thunderstorms with risks for severe weather and excessive rainfall from Texas to Florida through this weekend. While much of this rainfall will be beneficial to the drought, excessive rainfall may bring areas of flash and urban flooding. Read More >

Current conditions at

BLACK DIAMOND (PIBC1)

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

NA

66°F

19°C

Humidity 26%
Wind Speed SE 7 MPH
Barometer NA
Dewpoint 30°F (-1°C)
Visibility NA
Last update 02 May 01:28 AM PDT
Extended Forecast for

4 Miles SW Discovery Bay CA

  • Overnight

    Overnight: Mostly cloudy, with a low around 54. West southwest wind around 5 mph.

    Low: 54 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 75. West southwest wind 5 to 10 mph.

    High: 75 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 53. West wind 6 to 9 mph.

    Low: 53 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 74. West wind 5 to 10 mph, with gusts as high as 18 mph.

    High: 74 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 53. West wind 6 to 13 mph, with gusts as high as 22 mph.

    Low: 53 °F

    Partly Cloudy

  • Monday

    Monday: A 20 percent chance of rain before 11am. Mostly cloudy, with a high near 68.

    High: 68 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Monday Night

    Monday Night: A 30 percent chance of rain, mainly after 11pm. Mostly cloudy, with a low around 54.

    Low: 54 °F

    Chance Rain

  • Tuesday

    Tuesday: Partly sunny, with a high near 70.

    High: 70 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 54. West southwest wind around 5 mph.
Saturday
Partly sunny, with a high near 75. West southwest wind 5 to 10 mph.
Saturday Night
Mostly cloudy, with a low around 53. West wind 6 to 9 mph.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 74. West wind 5 to 10 mph, with gusts as high as 18 mph.
Sunday Night
Partly cloudy, with a low around 53. West wind 6 to 13 mph, with gusts as high as 22 mph.
Monday
A 20 percent chance of rain before 11am. Mostly cloudy, with a high near 68.
Monday Night
A 30 percent chance of rain, mainly after 11pm. Mostly cloudy, with a low around 54.
Tuesday
Partly sunny, with a high near 70.
Tuesday Night
Partly cloudy, with a low around 52.
Wednesday
Sunny, with a high near 80.
Wednesday Night
Clear, with a low around 54.
Thursday
Sunny, with a high near 86.
Thursday Night
Mostly clear, with a low around 54.
Friday
Sunny, with a high near 87.
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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:
2:02 am PDT May 2, 2026
Forecast Valid:
2am PDT May 2, 2026-6pm PDT May 8, 2026
 
Forecast Discussion
 
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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