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

Hawaii and Guam Concerns; Record Warmth Spreads Eastward; Heavy Snow for Sierra-Nevada; Severe Weather for the Plains

A very active spring pattern with tropical concerns across the Pacific. Heavy rainfall will continue to impact Hawaii this weekend. Meanwhile we continue to monitor a developing typhoon that may affect Guam into early next week. For the Lower 48, heavy snow for mountains of California this weekend, increase threat for severe thunderstorms next week for the Plains and record warmth spreads east. Read More >

Current conditions at

BLACK DIAMOND (PIBC1)

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

NA

53°F

12°C

Humidity 85%
Wind Speed SSE 6 MPH
Barometer NA
Dewpoint 49°F (9°C)
Visibility NA
Last update 10 Apr 04:28 PM PDT
Extended Forecast for

2 Miles ESE Antioch CA

  • This Afternoon

    This Afternoon: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm. Mostly cloudy, with a high near 68. West southwest wind around 9 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 68 °F

    Showers
    Likely

  • Tonight

    Tonight: Rain likely and possibly a thunderstorm before 4am, then a slight chance of rain between 4am and 5am. Mostly cloudy, with a low around 53. West southwest wind around 7 mph becoming south southeast after midnight. 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

    Rain Likely

  • Saturday

    Saturday: Rain likely and possibly a thunderstorm before 2pm, then a chance of showers and thunderstorms between 2pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Increasing clouds, with a high near 65. South wind 7 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 65 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Rain and possibly a thunderstorm before 2am, then showers and possibly a thunderstorm between 2am and 5am, then rain after 5am. Low around 49. South wind 8 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 49 °F

    Showers

  • Sunday

    Sunday: Rain before 8am, then showers and possibly a thunderstorm after 8am. High near 58. Southwest wind 8 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 58 °F

    Showers

  • Sunday Night

    Sunday Night: A 40 percent chance of rain before 11pm. Partly cloudy, with a low around 47. New precipitation amounts of less than a tenth of an inch possible.

    Low: 47 °F

    Chance Rain
    then Partly
    Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 64.

    High: 64 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

Detailed Forecast

This Afternoon
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm. Mostly cloudy, with a high near 68. West southwest wind around 9 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Rain likely and possibly a thunderstorm before 4am, then a slight chance of rain between 4am and 5am. Mostly cloudy, with a low around 53. West southwest wind around 7 mph becoming south southeast after midnight. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
Rain likely and possibly a thunderstorm before 2pm, then a chance of showers and thunderstorms between 2pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Increasing clouds, with a high near 65. South wind 7 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Rain and possibly a thunderstorm before 2am, then showers and possibly a thunderstorm between 2am and 5am, then rain after 5am. Low around 49. South wind 8 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
Rain before 8am, then showers and possibly a thunderstorm after 8am. High near 58. Southwest wind 8 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A 40 percent chance of rain before 11pm. Partly cloudy, with a low around 47. New precipitation amounts of less than a tenth of an inch possible.
Monday
Mostly sunny, with a high near 64.
Monday Night
Mostly clear, with a low around 47.
Tuesday
Sunny, with a high near 68.
Tuesday Night
Mostly clear, with a low around 47.
Wednesday
Sunny, with a high near 70.
Wednesday Night
Partly cloudy, with a low around 50.
Thursday
Sunny, with a high near 73.
Thursday Night
Mostly clear, with a low around 50.
Friday
Sunny, with a high near 74.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ESE Antioch CA
 37.99°N 121.77°W (Elev. 200 ft)
Last Update:
2:57 pm PDT Apr 10, 2026
Forecast Valid:
4pm PDT Apr 10, 2026-6pm PDT Apr 17, 2026
 
Forecast Discussion
 
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Additional Resources

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