Super Typhoon Sinlaku to Impact the Marianas and Guam; Severe Weather Threat from the Central Plains to the Great Lakes

Super Typhoon Sinlaku will bring destructive winds, widespread heavy rain/flooding, and thunderstorms to the Marianas Islands into Wednesday. Tropical Storm conditions are likely over Guam. Severe thunderstorms and heavy rain are likely across the Upper Mississippi Valley and Great Lakes region with potential for large to very large hail, damaging wind, and tornadoes through Tuesday. Read More >

Current conditions at

BLACK DIAMOND (PIBC1)

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

NA

54°F

12°C

Humidity 74%
Wind Speed SW 4 MPH
Barometer NA
Dewpoint 46°F (8°C)
Visibility NA
Last update 13 Apr 12:28 PM PDT
Extended Forecast for

2 Miles NNW Discovery Bay CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 66. Northwest wind 7 to 9 mph.

    High: 66 °F

    Sunny

  • Tonight

    Tonight: 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 69. Light south southwest wind becoming west 5 to 10 mph in the afternoon.

    High: 69 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 46. Southwest wind 5 to 9 mph.

    Low: 46 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 70. Southwest wind 5 to 10 mph.

    High: 70 °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 69.

    High: 69 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 47.

    Low: 47 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 66. Northwest wind 7 to 9 mph.
Tonight
Mostly clear, with a low around 46. West southwest wind 3 to 7 mph.
Tuesday
Sunny, with a high near 69. Light south southwest wind becoming west 5 to 10 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 46. Southwest wind 5 to 9 mph.
Wednesday
Mostly sunny, with a high near 70. Southwest wind 5 to 10 mph.
Wednesday Night
Partly cloudy, with a low around 49.
Thursday
Sunny, with a high near 69.
Thursday Night
Clear, with a low around 47.
Friday
Sunny, with a high near 76.
Friday Night
Partly cloudy, with a low around 47.
Saturday
Mostly sunny, with a high near 78.
Saturday Night
Mostly cloudy, with a low around 49.
Sunday
A slight chance of showers. Partly sunny, with a high near 71.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNW Discovery Bay CA
 37.92°N 121.61°W (Elev. 7 ft)
12:41 pm PDT Apr 13, 2026
12pm PDT Apr 13, 2026-6pm PDT Apr 19, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database