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

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

47°F

8°C

Humidity 89%
Wind Speed S 10 MPH
Barometer NA
Dewpoint 44°F (7°C)
Visibility NA
Wind Chill42°F (6°C)
Last update 12 Apr 01:28 PM PDT
Extended Forecast for

2 Miles NNW Discovery Bay CA

  • This Afternoon

    This Afternoon: Showers likely and possibly a thunderstorm before 4pm, then a chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 60. Southwest wind around 14 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 60 °F

    Showers
    Likely

  • Tonight

    Tonight: Showers likely, mainly before 3am. Patchy fog after 5am. Otherwise, partly cloudy, with a low around 45. West southwest wind 5 to 8 mph becoming calm in the evening. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 45 °F

    Showers
    Likely and
    Patchy Fog

  • Monday

    Monday: Mostly sunny, with a high near 65. Calm wind becoming northwest 5 to 8 mph in the morning.

    High: 65 °F

    Mostly Sunny

  • Monday Night

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

    Low: 46 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 68. West wind 3 to 7 mph.

    High: 68 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 46.

    Low: 46 °F

    Mostly Clear

  • Wednesday

    Wednesday: Partly sunny, with a high near 69.

    High: 69 °F

    Partly 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

Detailed Forecast

This Afternoon
Showers likely and possibly a thunderstorm before 4pm, then a chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 60. Southwest wind around 14 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers likely, mainly before 3am. Patchy fog after 5am. Otherwise, partly cloudy, with a low around 45. West southwest wind 5 to 8 mph becoming calm in the evening. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Mostly sunny, with a high near 65. Calm wind becoming northwest 5 to 8 mph in the morning.
Monday Night
Mostly clear, with a low around 46. West southwest wind around 7 mph.
Tuesday
Sunny, with a high near 68. West wind 3 to 7 mph.
Tuesday Night
Mostly clear, with a low around 46.
Wednesday
Partly sunny, with a high near 69.
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 75.
Friday Night
Mostly clear, with a low around 46.
Saturday
Sunny, with a high near 78.
Basemap Options
Click map to change the forecast location
Loading map...
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:
1:26 pm PDT Apr 12, 2026
Forecast Valid:
1pm PDT Apr 12, 2026-6pm PDT Apr 18, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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