Storm Systems to Impact the Central and Eastern U.S. Through the Weekend

Two storm systems will track through the central and eastern U.S. today through this weekend with areas of gusty winds, rain and heavy snow. Severe thunderstorms and heavy to excessive rainfall is forecast today from the Lower Mississippi River Valley to the Tennessee Valley. Damaging winds, a few tornadoes, and areas of flooding are possible. Read More >

Hazardous Weather Conditions

Cold Weather Advisory until January 9, 09:00 AM PST

Current conditions at

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

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

34°F

1°C

Humidity	52%
Wind Speed	N 23 MPH
Barometer	NA
Dewpoint	18°F (-8°C)
Visibility	NA
Wind Chill	22°F (-6°C)
Last update	09 Jan 06:20 AM PST

More Information:

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

Extended Forecast for

4 Miles SSE Clayton CA

Cold Weather Advisory January 9, 06:30am until January 9, 09:00am

Click here for hazard details and duration

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Cold Weather Advisory January 9, 06:30am until January 9, 09:00am
NOW until 9:00am Fri
Cold Weather Advisory
Today
High: 48 °F
Sunny
Tonight
Low: 37 °F
Mostly Clear
Saturday
High: 47 °F
Mostly Sunny
Saturday Night
Low: 37 °F
Mostly Cloudy
Sunday
High: 49 °F
Mostly Sunny
Sunday Night
Low: 39 °F
Mostly Clear
Monday
High: 51 °F
Sunny
Monday Night
Low: 40 °F
Mostly Clear