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.

38°F

3°C

Humidity	99%
Wind Speed	S 15 MPH
Barometer	NA
Dewpoint	38°F (3°C)
Visibility	NA
Wind Chill	29°F (-2°C)
Last update	15 Feb 02:05 AM PST

More Information:

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

Extended Forecast for

4 Miles SSE Clayton CA

Overnight
Low: 46 °F
Chance Rain
Sunday
High: 56 °F
Rain Likely
then Rain and
Breezy
Sunday Night
Low: 46 °F
Rain
Washington's Birthday
High: 50 °F
Rain
Monday Night
Low: 44 °F
Rain
Tuesday
High: 48 °F
Rain and
Breezy
Tuesday Night
Low: 39 °F
Rain then
Rain Likely
Wednesday
High: 48 °F
Rain Likely
Wednesday Night
Low: 39 °F
Rain Likely

Detailed Forecast

Overnight

A 30 percent chance of rain, mainly after 5am. Mostly cloudy, with a low around 46. South southeast wind around 14 mph, with gusts as high as 22 mph. New precipitation amounts of less than a tenth of an inch possible.

Sunday

Rain. High near 56. Breezy, with a south southeast wind 14 to 22 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

Sunday Night

Rain. Low around 46. South wind 16 to 21 mph decreasing to 9 to 14 mph after midnight. Winds could gust as high as 28 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 9 to 11 mph becoming northwest in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

Monday Night

Rain. Low around 44. Southwest wind 17 to 21 mph, with gusts as high as 41 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

Tuesday

Rain. High near 48. Breezy. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

Tuesday Night

Rain, mainly before 4am. Low around 39. Chance of precipitation is 90%.

Wednesday

Rain likely, mainly after 10am. Mostly cloudy, with a high near 48.

Wednesday Night

Rain likely, mainly before 10pm. Mostly cloudy, with a low around 39.

Thursday

A chance of rain. Partly sunny, with a high near 48.

Thursday Night

A chance of rain. Mostly cloudy, with a low around 38.