Lake Effect Snow through Friday; Heavy Rain, Thunderstorms and Mountain Snow in California

Periods of moderate to heavy lake effect snow will continue through Friday downwind of Lake Erie and Ontario. Several additional inches of accumulating snow are expected. A Pacific storm will bring heavy rain and mountain snow across California, the Southwest and Intermountain West today. Isolated severe thunderstorms and scattered flash flooding is possible across parts of southern California. Read More >

Current conditions at

BLACK DIAMOND (PIBC1)

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

44°F

7°C

Humidity	100%
Wind Speed	NNE 18 MPH
Barometer	NA
Dewpoint	44°F (7°C)
Visibility	NA
Wind Chill	36°F (2°C)
Last update	01 Jan 04:28 AM PST

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

5 Miles SW Brentwood CA

Overnight
Low: 47 °F
Showers
New Year's Day
High: 58 °F
Showers
Thursday Night
Low: 48 °F
Showers
Likely then
Slight Chance
Showers
Friday
High: 56 °F
Slight Chance
Showers then
Showers
Likely
Friday Night
Low: 54 °F
Showers and
Breezy
Saturday
High: 56 °F
Showers and
Breezy
Saturday Night
Low: 54 °F
Showers
Sunday
High: 54 °F
Showers
Sunday Night
Low: 50 °F
Showers

Detailed Forecast

Overnight

Showers. Low around 47. East wind around 9 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

New Year's Day

Showers, with thunderstorms also possible after 1pm. High near 58. South wind 10 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Thursday Night

Showers likely, mainly before 10pm. Mostly cloudy, with a low around 48. South wind 8 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.

Friday

Showers likely, mainly after 4pm. Mostly cloudy, with a high near 56. Southeast wind 9 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.

Friday Night

Showers. Low around 54. Breezy, with a southeast wind 17 to 22 mph, with gusts as high as 38 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

Saturday

Showers. High near 56. Breezy. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

Saturday Night

Showers and possibly a thunderstorm. Low around 54. Chance of precipitation is 90%.

Sunday

Showers. Cloudy, with a high near 54.

Sunday Night

Showers. Cloudy, with a low around 50.

Monday

Showers. Mostly cloudy, with a high near 53.

Monday Night

Showers likely. Mostly cloudy, with a low around 46.