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

Berkeley Lab (LBNL1)

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

54°F

12°C

Humidity	96%
Wind Speed	SSW 3 MPH
Barometer	NA
Dewpoint	53°F (12°C)
Visibility	NA
Last update	11 Apr 02:30 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: 53 °F
Slight Chance
Rain
Saturday
High: 62 °F
Chance
Showers then
Showers
Saturday Night
Low: 49 °F
Showers
Sunday
High: 58 °F
Showers
Sunday Night
Low: 47 °F
Chance Rain
then Mostly
Clear
Monday
High: 63 °F
Sunny
Monday Night
Low: 46 °F
Clear
Tuesday
High: 65 °F
Sunny
Tuesday Night
Low: 46 °F
Mostly Clear

Detailed Forecast

Overnight

A 20 percent chance of rain between 4am and 5am. Mostly cloudy, with a low around 53. South southwest wind around 9 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 62. South wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 90%. 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 9pm, then a chance of showers and thunderstorms between 9pm and 11pm, then showers likely and possibly a thunderstorm after 11pm. Low around 49. South southwest wind 14 to 18 mph, with gusts as high as 28 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 58. Southwest wind 16 to 18 mph, with gusts as high as 26 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 14 mph, with gusts as high as 21 mph. New precipitation amounts of less than a tenth of an inch possible.

Monday

Sunny, with a high near 63.

Monday Night

Clear, with a low around 46.

Tuesday

Sunny, with a high near 65.

Tuesday Night

Mostly clear, with a low around 46.

Wednesday

Sunny, with a high near 66.

Wednesday Night

Partly cloudy, with a low around 48.