Heavy Rain and Flooding Concerns in Hawaii; Severe Weather in the Plains

A storm system is expected to bring strong winds, widespread heavy rainfall, and flooding concerns to the Hawaiian Islands through the weekend. Strong to severe thunderstorms are forecast from the Southern Plains to the Mid-Missouri Valley Thursday afternoon and evening. Large hail and strong winds are the primary threats. Read More >

Current conditions at

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

Lat: 37.881699°NLon: 121.914173°WElev: 3904.0ft.

56°F

13°C

Humidity	63%
Wind Speed	WSW 12 MPH
Barometer	NA
Dewpoint	44°F (7°C)
Visibility	NA
Last update	08 Apr 10:05 PM PDT

More Information:

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

Extended Forecast for

4 Miles SSE Clayton CA

Overnight
Low: 55 °F
Partly Cloudy
Thursday
High: 64 °F
Mostly Sunny
then Slight
Chance Rain
Thursday Night
Low: 53 °F
Chance
Showers
Friday
High: 59 °F
Showers
Friday Night
Low: 53 °F
Showers
Saturday
High: 56 °F
Showers
Saturday Night
Low: 47 °F
Showers
Sunday
High: 51 °F
Showers
Sunday Night
Low: 47 °F
Chance Rain
then Partly
Cloudy

Detailed Forecast

Overnight

Partly cloudy, with a low around 55. West southwest wind around 10 mph, with gusts as high as 18 mph.

Thursday

A slight chance of rain before 3pm, then a slight chance of rain after 5pm. Mostly sunny, with a high near 64. West southwest wind 7 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.

Thursday Night

A chance of rain before 11pm, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 53. West southwest wind 6 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Friday

Showers and possibly a thunderstorm. High near 59. Southwest wind 6 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Friday Night

Showers and possibly a thunderstorm before 11pm, then rain likely after 11pm. Low around 53. South southwest wind 9 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Saturday

Rain likely, then showers and possibly a thunderstorm after 11am. High near 56. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Saturday Night

Showers and possibly a thunderstorm, mainly before 2am, then rain likely after 2am. Low around 47. Chance of precipitation is 90%.

Sunday

Rain likely, then showers and possibly a thunderstorm after 11am. Mostly cloudy, with a high near 51.

Sunday Night

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

Monday

Mostly sunny, with a high near 56.

Monday Night

Mostly clear, with a low around 47.

Tuesday

Sunny, with a high near 62.