Heavy Rain in the Southern U.S.; Active Weather Continues in Alaska

A storm system will bring heavy rainfall, thunderstorms, and flooding threats to portions of the Southern Plains today, the Lower Mississippi Valley Saturday, and the Southeast into the Mid-Atlantic on Sunday. Another Bering system will impact the Alaskan West Coast and Central Interior through the weekend bringing moderate to heavy snow, high winds, and/or some blizzard conditions. Read More >

Current conditions at

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

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

42°F

6°C

Humidity	97%
Wind Speed	S 9 MPH
Barometer	NA
Dewpoint	41°F (5°C)
Visibility	NA
Wind Chill	37°F (3°C)
Last update	14 Feb 01:20 PM PST

More Information:

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

Extended Forecast for

2 Miles SSW Clayton CA

This Afternoon
High: 57 °F
Mostly Cloudy
Tonight
Low: 47 °F
Chance Rain
Sunday
High: 59 °F
Rain Likely
and Breezy
then Rain
Sunday Night
Low: 48 °F
Rain
Washington's Birthday
High: 50 °F
Rain
Monday Night
Low: 44 °F
Rain
Tuesday
High: 47 °F
Rain and
Breezy
Tuesday Night
Low: 40 °F
Rain
Wednesday
High: 50 °F
Rain Likely

Detailed Forecast

This Afternoon

Mostly cloudy, with a high near 57. South southwest wind around 11 mph.

Tonight

A 30 percent chance of rain, mainly after midnight. Mostly cloudy, with a low around 47. South wind 9 to 14 mph increasing to 16 to 21 mph in the evening. Winds could gust as high as 25 mph.

Sunday

Rain. High near 59. Breezy, with a south wind 16 to 22 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

Sunday Night

Rain. Low around 48. South wind 16 to 21 mph decreasing to 9 to 14 mph after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

Washington's Birthday

Rain. High near 50. East wind 8 to 11 mph becoming northwest in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.

Monday Night

Rain. Low around 44. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

Tuesday

Rain. High near 47. Breezy. Chance of precipitation is 100%.

Tuesday Night

Rain, mainly before 4am. Mostly cloudy, with a low around 40.

Wednesday

Rain likely, mainly after 10am. Mostly cloudy, with a high near 50.

Wednesday Night

Rain likely, mainly before 10pm. Mostly cloudy, with a low around 40.

Thursday

A chance of rain. Partly sunny, with a high near 51.