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

Heavy Rain and Flooding Concerns in Hawaii; Severe Weather in the Plains

A storm system is expected to bring strong winds, widespread heavy rainfall, and flooding concerns to the Hawaiian Islands through the weekend. Strong to severe thunderstorms are forecast from the Southern Plains to the Mid-Missouri Valley this afternoon and evening. Large hail and strong winds are the primary threats. Read More >

Current conditions at

BLACK DIAMOND (PIBC1)

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

NA

69°F

21°C

Humidity 55%
Wind Speed S 15 MPH
Barometer NA
Dewpoint 52°F (11°C)
Visibility NA
Last update 09 Apr 03:28 PM PDT
Extended Forecast for

2 Miles NW Brentwood CA

  • This Afternoon

    This Afternoon: A 10 percent chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 76. West wind around 9 mph.

    High: 76 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A slight chance of showers before 11pm, then a chance of showers after 3am. Mostly cloudy, with a low around 55. West wind 5 to 8 mph becoming calm after midnight. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 55 °F

    Chance
    Showers

  • Friday

    Friday: Showers and thunderstorms before 3pm, then showers likely and possibly a thunderstorm between 3pm and 4pm, then a chance of showers and thunderstorms after 4pm. High near 68. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 68 °F

    Showers

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 54. Southwest wind 5 to 8 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 54 °F

    Showers
    Likely

  • Saturday

    Saturday: A chance of showers, then showers and possibly a thunderstorm after 11am. High near 65. South southeast wind 6 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 65 °F

    Showers

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm. Low around 49. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 49 °F

    Showers

  • Sunday

    Sunday: Showers, with thunderstorms also possible after 11am. High near 59. Chance of precipitation is 90%.

    High: 59 °F

    Showers

  • Sunday Night

    Sunday Night: A chance of rain before 11pm. Mostly cloudy, with a low around 47.

    Low: 47 °F

    Chance Rain
    then Partly
    Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 66.

    High: 66 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A 10 percent chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 76. West wind around 9 mph.
Tonight
A slight chance of showers before 11pm, then a chance of showers after 3am. Mostly cloudy, with a low around 55. West wind 5 to 8 mph becoming calm after midnight. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Showers and thunderstorms before 3pm, then showers likely and possibly a thunderstorm between 3pm and 4pm, then a chance of showers and thunderstorms after 4pm. High near 68. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 54. Southwest wind 5 to 8 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
A chance of showers, then showers and possibly a thunderstorm after 11am. High near 65. South southeast wind 6 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers and possibly a thunderstorm. Low around 49. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
Showers, with thunderstorms also possible after 11am. High near 59. Chance of precipitation is 90%.
Sunday Night
A chance of rain before 11pm. Mostly cloudy, with a low around 47.
Monday
Mostly sunny, with a high near 66.
Monday Night
Mostly clear, with a low around 47.
Tuesday
Sunny, with a high near 69.
Tuesday Night
Mostly clear, with a low around 47.
Wednesday
Sunny, with a high near 73.
Wednesday Night
Partly cloudy, with a low around 51.
Thursday
Mostly sunny, with a high near 73.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NW Brentwood CA
 37.95°N 121.71°W (Elev. 82 ft)
Last Update:
1:26 pm PDT Apr 9, 2026
Forecast Valid:
4pm PDT Apr 9, 2026-6pm PDT Apr 16, 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