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

Lake Effect Snow through Saturday: A Series of Storms Impact the West

Lake effect snow showers will continue through Saturday downwind of Lakes Erie, Ontario and the eastern portion of Lake Superior. A series of storm systems will continue to impact California and the Pacific Northwest through the weekend and into next week, bringing widespread rainfall, mountain snowfall, and gusty winds. Coastal flooding is expected in northern California. Read More >

Current conditions at

BLACK DIAMOND (PIBC1)

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

NA

51°F

11°C

Humidity 84%
Wind Speed WNW 4 MPH
Barometer NA
Dewpoint 46°F (8°C)
Visibility NA
Last update 03 Jan 03:28 AM PST
Extended Forecast for

5 Miles SW Brentwood CA

  • Overnight

    Overnight: Showers and possibly a thunderstorm. Low around 54. South wind around 17 mph, with gusts as high as 32 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 54 °F

    Showers

  • Saturday

    Saturday: Showers and possibly a thunderstorm. High near 58. Breezy, with a south wind 17 to 22 mph, with gusts as high as 38 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 58 °F

    Showers and
    Breezy

  • Saturday Night

    Saturday Night: Showers. Low around 52. South wind around 15 mph, with gusts as high as 29 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 52 °F

    Showers

  • Sunday

    Sunday: Showers. High near 53. South wind 10 to 17 mph, with gusts as high as 32 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 53 °F

    Showers

  • Sunday Night

    Sunday Night: Showers likely. Mostly cloudy, with a low around 48. South wind 7 to 9 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 48 °F

    Showers
    Likely

  • Monday

    Monday: Showers. High near 51. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 51 °F

    Showers

  • Monday Night

    Monday Night: Showers likely, mainly before 10pm. Mostly cloudy, with a low around 47. Chance of precipitation is 60%.

    Low: 47 °F

    Showers
    Likely then
    Chance
    Showers

  • Tuesday

    Tuesday: A slight chance of showers before 10am. Partly sunny, with a high near 51.

    High: 51 °F

    Slight Chance
    Showers then
    Partly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers after 4am. Mostly cloudy, with a low around 44.

    Low: 44 °F

    Mostly Cloudy
    then Chance
    Showers

Detailed Forecast

Overnight
Showers and possibly a thunderstorm. Low around 54. South wind around 17 mph, with gusts as high as 32 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
Showers and possibly a thunderstorm. High near 58. Breezy, with a south wind 17 to 22 mph, with gusts as high as 38 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers. Low around 52. South wind around 15 mph, with gusts as high as 29 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
Showers. High near 53. South wind 10 to 17 mph, with gusts as high as 32 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Sunday Night
Showers likely. Mostly cloudy, with a low around 48. South wind 7 to 9 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Showers. High near 51. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
Showers likely, mainly before 10pm. Mostly cloudy, with a low around 47. Chance of precipitation is 60%.
Tuesday
A slight chance of showers before 10am. Partly sunny, with a high near 51.
Tuesday Night
A chance of showers after 4am. Mostly cloudy, with a low around 44.
Wednesday
A chance of showers, mainly before 10am. Partly sunny, with a high near 51.
Wednesday Night
A slight chance of showers. Partly cloudy, with a low around 38.
Thursday
Sunny, with a high near 49.
Thursday Night
Mostly clear, with a low around 36.
Friday
Areas of frost. Otherwise, sunny, with a high near 47.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SW Brentwood CA
 37.87°N 121.77°W (Elev. 758 ft)
Last Update:
1:23 am PST Jan 3, 2026
Forecast Valid:
4am PST Jan 3, 2026-6pm PST Jan 9, 2026
 
Forecast Discussion
 
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Additional Resources

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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