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.

52°F

11°C

Humidity	100%
Wind Speed	S 5 MPH
Barometer	NA
Dewpoint	52°F (11°C)
Visibility	NA
Last update	10 Apr 10:28 PM PDT

More Information:

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

Extended Forecast for

5 Miles SSW Antioch CA

Tonight
Low: 54 °F
Chance Rain
Saturday
High: 63 °F
Showers
Saturday Night
Low: 50 °F
Showers
Sunday
High: 57 °F
Showers
Sunday Night
Low: 47 °F
Chance Rain
then Mostly
Clear
Monday
High: 62 °F
Mostly Sunny
Monday Night
Low: 48 °F
Mostly Clear
Tuesday
High: 66 °F
Sunny
Tuesday Night
Low: 48 °F
Mostly Clear

Detailed Forecast

Tonight

A 30 percent chance of rain, mainly before 3am. Partly cloudy, with a low around 54. South wind around 8 mph. New precipitation amounts of less than a tenth of an inch possible.

Saturday

Rain and thunderstorms likely, then showers and possibly a thunderstorm after 4pm. High near 63. South wind 9 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Saturday Night

Showers and thunderstorms, mainly before midnight, then showers likely and possibly a thunderstorm after 3am. Low around 50. South wind 13 to 18 mph, with gusts as high as 32 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

Sunday

Showers and possibly a thunderstorm. High near 57. South southwest wind around 15 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Sunday Night

A 30 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 22 mph. New precipitation amounts of less than a tenth of an inch possible.

Monday

Mostly sunny, with a high near 62.

Monday Night

Mostly clear, with a low around 48.

Tuesday

Sunny, with a high near 66.

Tuesday Night

Mostly clear, with a low around 48.

Wednesday

Sunny, with a high near 66.

Wednesday Night

Partly cloudy, with a low around 51.