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

Port Chicago (PCOC1)

Lat: 38.056°NLon: 122.0395°WElev: 0.0ft.

52°F

11°C

Humidity	NA
Wind Speed	S 10 MPH
Barometer	29.75 in (1007.45 mb)
Dewpoint	N/A
Visibility	NA
Last update	NA

More Information:

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

Extended Forecast for

3 Miles WNW Pittsburg CA

Overnight
Low: 49 °F
Chance
Showers
Sunday
High: 59 °F
Showers
Sunday Night
Low: 47 °F
Chance
Showers then
Mostly Clear
Monday
High: 63 °F
Mostly Sunny
Monday Night
Low: 47 °F
Mostly Clear
Tuesday
High: 65 °F
Sunny
Tuesday Night
Low: 48 °F
Mostly Clear
Wednesday
High: 66 °F
Mostly Sunny
Wednesday Night
Low: 50 °F
Partly Cloudy

Detailed Forecast

Overnight

A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 49. South southwest wind around 14 mph, with gusts as high as 23 mph. 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 59. West southwest wind around 15 mph, with gusts as high as 25 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 8pm. Partly cloudy, with a low around 47. West southwest wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 18 mph.

Monday

Mostly sunny, with a high near 63. West northwest wind 3 to 7 mph.

Monday Night

Mostly clear, with a low around 47. West southwest wind around 8 mph.

Tuesday

Sunny, with a high near 65.

Tuesday Night

Mostly clear, with a low around 48.

Wednesday

Mostly sunny, with a high near 66.

Wednesday Night

Partly cloudy, with a low around 50.