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.

54°F

12°C

Humidity	NA
Wind Speed	S 8 MPH
Barometer	29.85 in (1010.84 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

5 Miles NW Concord CA

Today
High: 58 °F
Showers
Tonight
Low: 45 °F
Chance
Showers then
Partly Cloudy
Monday
High: 64 °F
Mostly Sunny
Monday Night
Low: 46 °F
Mostly Clear
Tuesday
High: 64 °F
Sunny
Tuesday Night
Low: 46 °F
Mostly Clear
Wednesday
High: 66 °F
Partly Sunny
Wednesday Night
Low: 48 °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 58. Southwest wind around 15 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tonight

A 30 percent chance of showers, mainly between 7pm and 11pm. Partly cloudy, with a low around 45. West southwest wind 5 to 10 mph becoming light south southwest after midnight.

Monday

Mostly sunny, with a high near 64. Calm wind becoming west 5 to 8 mph in the afternoon.

Monday Night

Mostly clear, with a low around 46. West southwest wind around 8 mph.

Tuesday

Sunny, with a high near 64. West southwest wind 6 to 9 mph.

Tuesday Night

Mostly clear, with a low around 46.

Wednesday

Partly sunny, with a high near 66.

Wednesday Night

Partly cloudy, with a low around 48.