Hawaii and Guam Concerns; Record Warmth Spreads Eastward; Heavy Snow for Sierra-Nevada; Severe Weather for 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

Berkeley Lab (LBNL1)

Lat: 37.8771°NLon: 122.2486°WElev: 888.0ft.

56°F

13°C

Humidity	82%
Wind Speed	SE 7 MPH
Barometer	NA
Dewpoint	51°F (11°C)
Visibility	NA
Last update	10 Apr 05:30 AM PDT

More Information:

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

Extended Forecast for

2 Miles N Hercules CA

Overnight
Low: 55 °F
Showers
Likely
Friday
High: 65 °F
Showers
Friday Night
Low: 53 °F
Showers
Likely
Saturday
High: 62 °F
Showers
Saturday Night
Low: 48 °F
Showers
Sunday
High: 59 °F
Showers
Sunday Night
Low: 47 °F
Chance Rain
then Partly
Cloudy
Monday
High: 63 °F
Mostly Sunny
Monday Night
Low: 46 °F
Mostly Clear

Detailed Forecast

Overnight

Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 55. South southwest wind around 5 mph. Chance of precipitation is 60%.

Friday

Showers and thunderstorms before 3pm, then showers and possibly a thunderstorm, mainly after 3pm. High near 65. Southwest wind 6 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Friday Night

A chance of showers and thunderstorms before 7pm, then showers likely and possibly a thunderstorm between 7pm and 11pm, then a chance of rain after 11pm. Mostly cloudy, with a low around 53. South southwest wind 9 to 13 mph, with gusts as high as 20 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, mainly before 2pm, then showers and possibly a thunderstorm after 2pm. High near 62. South wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

Saturday Night

Rain and possibly a thunderstorm before 11pm, then showers and possibly a thunderstorm between 11pm and 2am, then rain after 2am. Low around 48. South wind 11 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

Sunday

Rain before 8am, then showers and possibly a thunderstorm after 8am. High near 59. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Sunday Night

A 40 percent chance of rain before 11pm. Partly cloudy, with a low around 47.

Monday

Mostly sunny, with a high near 63.

Monday Night

Mostly clear, with a low around 46.

Tuesday

Sunny, with a high near 65.

Tuesday Night

Mostly clear, with a low around 47.

Wednesday

Mostly sunny, with a high near 68.