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Hawaii and Guam Concerns; Severe Weather for the Plains; Heavy Snow for Sierra-Nevada

Heavy rainfall capable of causing flash flooding will continue to impact Hawaii through Monday. Severe thunderstorms and heavy rain are possible in parts of Texas and the southern Plains and the Upper Great Lakes. Heavy mountain snow continues in California's Sierra Nevada and rain with gusty winds to lower elevations. Super Typhoon Sinlaku will impact the Marianas through midweek. Read More >

Current conditions at

BLACK DIAMOND (PIBC1)

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

NA

46°F

8°C

Humidity 87%
Wind Speed SE 5 MPH
Barometer NA
Dewpoint 42°F (6°C)
Visibility NA
Wind Chill44°F (7°C)
Last update 12 Apr 10:28 PM PDT
Extended Forecast for

2 Miles NNW Discovery Bay CA

  • Tonight

    Tonight: A 20 percent chance of rain before 4am. Patchy fog after 5am. Otherwise, partly cloudy, with a low around 44. Light south wind.

    Low: 44 °F

    Slight Chance
    Rain and
    Patchy Fog

  • Monday

    Monday: Sunny, with a high near 66. Calm wind becoming northwest 5 to 9 mph in the morning.

    High: 66 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 46. West southwest wind 3 to 7 mph.

    Low: 46 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 68. Southwest wind 3 to 8 mph.

    High: 68 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 46. Southwest wind 6 to 10 mph.

    Low: 46 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 69.

    High: 69 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 49.

    Low: 49 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 46.

    Low: 46 °F

    Clear

Detailed Forecast

Tonight
A 20 percent chance of rain before 4am. Patchy fog after 5am. Otherwise, partly cloudy, with a low around 44. Light south wind.
Monday
Sunny, with a high near 66. Calm wind becoming northwest 5 to 9 mph in the morning.
Monday Night
Mostly clear, with a low around 46. West southwest wind 3 to 7 mph.
Tuesday
Sunny, with a high near 68. Southwest wind 3 to 8 mph.
Tuesday Night
Mostly clear, with a low around 46. Southwest wind 6 to 10 mph.
Wednesday
Mostly sunny, with a high near 69.
Wednesday Night
Partly cloudy, with a low around 49.
Thursday
Sunny, with a high near 68.
Thursday Night
Clear, with a low around 46.
Friday
Sunny, with a high near 75.
Friday Night
Mostly clear, with a low around 47.
Saturday
Mostly sunny, with a high near 78.
Saturday Night
Partly cloudy, with a low around 50.
Sunday
Mostly sunny, with a high near 73.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNW Discovery Bay CA
 37.92°N 121.61°W (Elev. 7 ft)
Last Update:
11:27 pm PDT Apr 12, 2026
Forecast Valid:
11pm PDT Apr 12, 2026-6pm PDT Apr 19, 2026
 
Forecast Discussion
 
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Additional Resources

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National Digital Forecast Database

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Chance of Precipitation