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.

44°F

7°C

Humidity	100%
Wind Speed	S 15 MPH
Barometer	NA
Dewpoint	44°F (7°C)
Visibility	NA
Wind Chill	37°F (3°C)
Last update	11 Apr 07:28 PM PDT

More Information:

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

Extended Forecast for

2 Miles NW Brentwood CA

Tonight
Low: 49 °F
Showers then
Showers
Likely
Sunday
High: 61 °F
Showers
Sunday Night
Low: 46 °F
Chance
Showers then
Partly Cloudy
Monday
High: 65 °F
Mostly Sunny
Monday Night
Low: 46 °F
Mostly Clear
Tuesday
High: 69 °F
Sunny
Tuesday Night
Low: 46 °F
Mostly Clear
Wednesday
High: 70 °F
Sunny
Wednesday Night
Low: 49 °F
Partly Cloudy

Detailed Forecast

Tonight

Showers and thunderstorms before 5am, then a chance of showers. Low around 49. Southwest wind 7 to 10 mph becoming south southeast after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Sunday

Showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 4pm, then a chance of showers and thunderstorms after 4pm. High near 61. South southeast wind 9 to 15 mph becoming west southwest in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Sunday Night

A 30 percent chance of showers before 11pm. Partly cloudy, with a low around 46. West southwest wind 5 to 10 mph becoming light south southwest after midnight. Winds could gust as high as 18 mph.

Monday

Mostly sunny, with a high near 65. Calm wind becoming west northwest 5 to 7 mph in the afternoon.

Monday Night

Mostly clear, with a low around 46. West southwest wind 5 to 8 mph.

Tuesday

Sunny, with a high near 69.

Tuesday Night

Mostly clear, with a low around 46.

Wednesday

Sunny, with a high near 70.

Wednesday Night

Partly cloudy, with a low around 49.