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.

60°F

16°C

Humidity	NA
Wind Speed	SW 5 MPH
Barometer	29.83 in (1010.16 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

Tonight
Low: 52 °F
Showers
Likely then
Chance Rain
Saturday
High: 63 °F
Chance
Showers then
Showers
Saturday Night
Low: 49 °F
Showers
Sunday
High: 58 °F
Showers
Sunday Night
Low: 46 °F
Chance Rain
then Partly
Cloudy
Monday
High: 63 °F
Mostly Sunny
Monday Night
Low: 46 °F
Mostly Clear
Tuesday
High: 67 °F
Sunny
Tuesday Night
Low: 46 °F
Mostly Clear

Detailed Forecast

Tonight

Rain likely and possibly a thunderstorm before 3am, then a slight chance of rain between 3am and 4am. Mostly cloudy, with a low around 52. South wind 7 to 9 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Saturday

Rain and thunderstorms likely before 1pm, then a chance of showers and thunderstorms between 1pm and 4pm, then showers and possibly a thunderstorm after 4pm. High near 63. South wind 7 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Saturday Night

Showers and possibly a thunderstorm before 5am, then rain after 5am. Low around 49. South wind 9 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

Sunday

Rain before 8am, then showers and possibly a thunderstorm after 8am. High near 58. South southwest wind 9 to 14 mph, with gusts as high as 21 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 46. West southwest wind 5 to 11 mph, with gusts as high as 18 mph. New precipitation amounts of less than a tenth of an inch possible.

Monday

Mostly sunny, with a high near 63.

Monday Night

Mostly clear, with a low around 46.

Tuesday

Sunny, with a high near 67.

Tuesday Night

Mostly clear, with a low around 46.

Wednesday

Sunny, with a high near 68.

Wednesday Night

Partly cloudy, with a low around 48.