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.

54°F

12°C

Humidity	80%
Wind Speed	S 10 MPH
Barometer	NA
Dewpoint	48°F (9°C)
Visibility	NA
Last update	11 Apr 01:28 PM PDT

More Information:

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

Extended Forecast for

5 Miles W Brentwood CA

This Afternoon
High: 64 °F
Chance
T-storms
Tonight
Low: 50 °F
Showers then
Showers
Likely
Sunday
High: 59 °F
Showers
Sunday Night
Low: 48 °F
Chance
Showers then
Partly Cloudy
Monday
High: 63 °F
Mostly Sunny
Monday Night
Low: 48 °F
Mostly Clear
Tuesday
High: 67 °F
Sunny
Tuesday Night
Low: 48 °F
Mostly Clear
Wednesday
High: 68 °F
Sunny

Detailed Forecast

This Afternoon

A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 64. South wind around 17 mph, with gusts as high as 30 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tonight

Showers and thunderstorms before 2am, then showers likely and possibly a thunderstorm between 2am and 4am, then a chance of showers and thunderstorms after 4am. Low around 50. South wind 10 to 15 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

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 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.

Sunday Night

A 30 percent chance of showers before 11pm. Partly cloudy, with a low around 48. Southwest wind 5 to 11 mph, with gusts as high as 22 mph.

Monday

Mostly sunny, with a high near 63. West northwest wind 3 to 8 mph.

Monday Night

Mostly clear, with a low around 48.

Tuesday

Sunny, with a high near 67.

Tuesday Night

Mostly clear, with a low around 48.

Wednesday

Sunny, with a high near 68.