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.

45°F

7°C

Humidity	90%
Wind Speed	SSE 8 MPH
Barometer	NA
Dewpoint	42°F (6°C)
Visibility	NA
Wind Chill	41°F (5°C)
Last update	12 Apr 06:28 AM PDT

More Information:

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

Extended Forecast for

5 Miles W Brentwood CA

Today
High: 59 °F
Showers
Tonight
Low: 47 °F
Chance
Showers then
Mostly Clear
Monday
High: 64 °F
Mostly Sunny
Monday Night
Low: 48 °F
Mostly Clear
Tuesday
High: 66 °F
Sunny
Tuesday Night
Low: 47 °F
Mostly Clear
Wednesday
High: 67 °F
Mostly Sunny
Wednesday Night
Low: 52 °F
Partly Cloudy
Thursday
High: 68 °F
Sunny

Detailed Forecast

Today

Showers and possibly a thunderstorm, mainly before 4pm, then a chance of showers and thunderstorms after 4pm. High near 59. Southwest wind 13 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Tonight

A 40 percent chance of showers, mainly before 9pm. Partly cloudy, with a low around 47. West southwest wind 5 to 10 mph becoming light southwest after midnight. Winds could gust as high as 18 mph. New precipitation amounts of less than a tenth of an inch possible.

Monday

Mostly sunny, with a high near 64. Light and variable wind becoming northwest 5 to 7 mph in the afternoon.

Monday Night

Mostly clear, with a low around 48. West southwest wind around 8 mph.

Tuesday

Sunny, with a high near 66. Southwest wind 5 to 8 mph.

Tuesday Night

Mostly clear, with a low around 47.

Wednesday

Mostly sunny, with a high near 67.

Wednesday Night

Partly cloudy, with a low around 52.