Tracking Areas of Fire Weather, Winter Weather, and Severe Weather Thursday

Continuation of gusty winds and low relative humidity will bring additional periods of critical fire weather to the southern Plains Thursday and Friday. Another Pacific storm will continue gusty winds and heavy snow over the western mountains into Thursday. Severe thunderstorms are possible across parts of the middle Mississippi into lower Ohio Valleys Thursday afternoon into early evening. Read More >

Hazardous Weather Conditions

Extreme Cold Warning in effect from February 20, 01:00 AM PST until February 20, 09:00 AM PST

Current conditions at

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

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

31°F

-1°C

Humidity	100%
Wind Speed	N 0 MPH
Barometer	NA
Dewpoint	31°F (-1°C)
Visibility	NA
Last update	19 Feb 07:05 AM PST

More Information:

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

Extended Forecast for

2 Miles S Clayton CA

Extreme Cold Warning February 20, 01:00am until February 20, 09:00am

Click here for hazard details and duration

Extreme Cold Warning

Today
High: 50 °F
Chance Rain
and Breezy
Tonight
Low: 34 °F
Mostly Clear
then Patchy
Frost
Friday
High: 51 °F
Partly Sunny
Friday Night
Low: 38 °F
Partly Cloudy
Saturday
High: 58 °F
Partly Sunny
Saturday Night
Low: 46 °F
Slight Chance
Rain
Sunday
High: 63 °F
Chance Rain
Sunday Night
Low: 51 °F
Chance Rain
Monday
High: 65 °F
Rain Likely

Detailed Forecast

Today

A 50 percent chance of rain, mainly before 1pm. Partly sunny, with a high near 50. Breezy, with a west northwest wind 20 to 22 mph, with gusts as high as 40 mph. New precipitation amounts between a tenth and quarter of an inch possible.

Tonight

Patchy frost after 1am. Otherwise, mostly clear, with a low around 34. West wind 6 to 14 mph becoming south southwest after midnight. Winds could gust as high as 26 mph.

Friday

Partly sunny, with a high near 51. Southeast wind around 5 mph becoming northeast in the afternoon.

Friday Night

Partly cloudy, with a low around 38. East wind around 6 mph.

Saturday

Partly sunny, with a high near 58. South southeast wind 8 to 11 mph, with gusts as high as 23 mph.

Saturday Night

A 20 percent chance of rain after 10pm. Mostly cloudy, with a low around 46.

Sunday

A 40 percent chance of rain. Partly sunny, with a high near 63.

Sunday Night

A chance of rain. Mostly cloudy, with a low around 51.