Heavy Rain and Flooding Concerns in Hawaii; Severe Weather this Weekend in the Plains; Pacific Storm in the West

A storm system near the Hawaiian Islands is expected to bring periods of heavy rainfall, strong winds, and isolated strong to severe thunderstorms through Friday. Several rounds of severe thunderstorms are forecast to impact parts of the Great Plains into the Midwest this weekend into next week. Moderate to heavy rainfall and high elevation snow is expected this weekend over California and Oregon. Read More >

Current conditions at

BLACK DIAMOND (PIBC1)

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

NA

51°F

11°C

Humidity 100%
Wind Speed S 12 MPH
Barometer NA
Dewpoint 51°F (11°C)
Visibility NA
Last update 10 Apr 12:28 AM PDT
Extended Forecast for

2 Miles NW Brentwood CA

  • Overnight

    Overnight: A 30 percent chance of rain, mainly after 4am.  Mostly cloudy, with a low around 54. West southwest wind around 5 mph becoming calm.  New precipitation amounts of less than a tenth of an inch possible.

    Low: 54 °F

    Chance Rain

  • Friday

    Friday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after noon.  High near 70. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.  Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 70 °F

    Showers

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before 10pm, then a chance of showers and thunderstorms between 10pm and 11pm, then a chance of rain after 11pm.  Mostly cloudy, with a low around 53. Southwest wind 5 to 7 mph becoming south southeast in the evening.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 53 °F

    Showers
    Likely

  • Saturday

    Saturday: A chance of rain, then showers and possibly a thunderstorm after 11am.  High near 66. South southeast wind 6 to 14 mph, with gusts as high as 25 mph.  Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 66 °F

    Showers

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm before 11pm, then rain after 11pm.  Low around 49. South southeast wind 7 to 13 mph, with gusts as high as 22 mph.  Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 49 °F

    Showers

  • Sunday

    Sunday: Rain before 11am, then showers and possibly a thunderstorm between 11am and 5pm, then a chance of showers and thunderstorms after 5pm.  High near 60. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 60 °F

    Showers

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 8pm, then a chance of rain between 8pm and 11pm.  Mostly cloudy, with a low around 47. Chance of precipitation is 40%.

    Low: 47 °F

    Chance
    Showers then
    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny

  • Monday Night

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

    Low: 46 °F

    Mostly Clear

Detailed Forecast

Overnight
A 30 percent chance of rain, mainly after 4am. Mostly cloudy, with a low around 54. West southwest wind around 5 mph becoming calm. New precipitation amounts of less than a tenth of an inch possible.
Friday
Showers and thunderstorms likely, then showers and possibly a thunderstorm after noon. High near 70. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Chance of precipitation is 90%. 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 before 10pm, then a chance of showers and thunderstorms between 10pm and 11pm, then a chance of rain after 11pm. Mostly cloudy, with a low around 53. Southwest wind 5 to 7 mph becoming south southeast in the evening. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
A chance of rain, then showers and possibly a thunderstorm after 11am. High near 66. South southeast wind 6 to 14 mph, with gusts as high as 25 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 before 11pm, then rain after 11pm. Low around 49. South southeast wind 7 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
Rain before 11am, then showers and possibly a thunderstorm between 11am and 5pm, then a chance of showers and thunderstorms after 5pm. High near 60. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
A chance of showers and thunderstorms before 8pm, then a chance of rain between 8pm and 11pm. Mostly cloudy, with a low around 47. Chance of precipitation is 40%.
Monday
Mostly sunny, with a high near 65.
Monday Night
Mostly clear, with a low around 46.
Tuesday
Sunny, with a high near 68.
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 75.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NW Brentwood CA
 37.95°N 121.71°W (Elev. 82 ft)
1:26 am PDT Apr 10, 2026
1am PDT Apr 10, 2026-6pm PDT Apr 16, 2026
 
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Additional Resources

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