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.

47°F

8°C

Humidity	81%
Wind Speed	S 15 MPH
Barometer	NA
Dewpoint	41°F (5°C)
Visibility	NA
Wind Chill	41°F (5°C)
Last update	12 Apr 12:28 AM PDT

More Information:

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

Extended Forecast for

3 Miles SSE Pittsburg CA

Overnight
Low: 48 °F
Chance
Showers
Sunday
High: 58 °F
Showers
Sunday Night
Low: 46 °F
Chance
Showers then
Mostly Clear
Monday
High: 62 °F
Mostly Sunny
Monday Night
Low: 47 °F
Mostly Clear
Tuesday
High: 65 °F
Sunny
Tuesday Night
Low: 46 °F
Mostly Clear
Wednesday
High: 65 °F
Mostly Sunny
Wednesday Night
Low: 50 °F
Partly Cloudy

Detailed Forecast

Overnight

A chance of showers and thunderstorms. Mostly cloudy, with a low around 48. South southwest wind 15 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Sunday

Showers and possibly a thunderstorm, mainly before 4pm, then a chance of showers and thunderstorms after 4pm. High near 58. West southwest wind 14 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Sunday Night

A 40 percent chance of showers, mainly before 9pm. Partly cloudy, with a low around 46. West southwest wind 5 to 13 mph, with gusts as high as 21 mph.

Monday

Mostly sunny, with a high near 62. West northwest wind 3 to 7 mph.

Monday Night

Mostly clear, with a low around 47. West southwest wind around 9 mph.

Tuesday

Sunny, with a high near 65.

Tuesday Night

Mostly clear, with a low around 46.

Wednesday

Mostly sunny, with a high near 65.

Wednesday Night

Partly cloudy, with a low around 50.