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.

55°F

13°C

Humidity	NA
Wind Speed	ESE 3 MPH
Barometer	29.87 in (1011.51 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

Today
High: 64 °F
Showers
Tonight
Low: 50 °F
Showers then
Showers
Likely
Sunday
High: 58 °F
Showers
Sunday Night
Low: 47 °F
Chance Rain
then Mostly
Clear
Monday
High: 63 °F
Mostly Sunny
Monday Night
Low: 46 °F
Mostly Clear
Tuesday
High: 66 °F
Sunny
Tuesday Night
Low: 46 °F
Mostly Clear
Wednesday
High: 66 °F
Sunny

Detailed Forecast

Today

Rain and thunderstorms likely, then showers and possibly a thunderstorm after 4pm. High near 64. South wind 9 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tonight

Showers and thunderstorms, mainly before 11pm, then showers likely and possibly a thunderstorm after 3am. Low around 50. South wind 10 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

Sunday

Showers and possibly a thunderstorm. High near 58. South southwest wind around 14 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Sunday Night

A 40 percent chance of rain before 11pm. Partly cloudy, with a low around 47. West southwest wind 6 to 13 mph, with gusts as high as 21 mph.

Monday

Mostly sunny, with a high near 63. Light and variable wind becoming west northwest around 6 mph in the afternoon.

Monday Night

Mostly clear, with a low around 46.

Tuesday

Sunny, with a high near 66.

Tuesday Night

Mostly clear, with a low around 46.

Wednesday

Sunny, with a high near 66.