Pacific Storm System Moves Inland; Strong Storm in Alaska

A Pacific storm system will bring low elevation/valley rain and mountain snow as it moves inland to the central Great Basin through the central Rockies through Thursday. Scattered thunderstorms are likely from California into the Great Basin. A large low pressure system continues to bring snow, blizzard conditions, damaging winds, and mixed precipitation along the Bering Sea and Southwest Alaska. Read More >

Current conditions at

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

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

41°F

5°C

Humidity	99%
Wind Speed	SSE 14 MPH
Barometer	NA
Dewpoint	40°F (4°C)
Visibility	NA
Wind Chill	33°F (1°C)
Last update	11 Feb 06:05 AM PST

More Information:

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

Extended Forecast for

4 Miles SSE Clayton CA

Today
High: 48 °F
Showers
Likely and
Breezy then
Showers
Tonight
Low: 42 °F
Rain Likely
then Chance
Rain
Thursday
High: 53 °F
Mostly Sunny
Thursday Night
Low: 46 °F
Mostly Clear
Friday
High: 59 °F
Mostly Sunny
Friday Night
Low: 48 °F
Mostly Cloudy
Saturday
High: 55 °F
Mostly Cloudy
Saturday Night
Low: 49 °F
Chance Rain
Sunday
High: 54 °F
Rain Likely

Detailed Forecast

Today

Rain and thunderstorms likely before 2pm, then showers and possibly a thunderstorm between 2pm and 4pm, then rain likely and possibly a thunderstorm after 4pm. High near 48. Breezy, with a south wind 17 to 22 mph, with gusts as high as 43 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

Tonight

Rain likely, mainly before 1am. Mostly cloudy, with a low around 42. Southeast wind 7 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

Thursday

Mostly sunny, with a high near 53. North wind around 8 mph.

Thursday Night

Mostly clear, with a low around 46. West southwest wind around 9 mph.

Friday

Mostly sunny, with a high near 59. West northwest wind around 7 mph.

Friday Night

Mostly cloudy, with a low around 48.

Saturday

Mostly cloudy, with a high near 55.

Saturday Night

A chance of rain. Mostly cloudy, with a low around 49.