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.

29°F

-2°C

Humidity	100%
Wind Speed	N 0 MPH
Barometer	NA
Dewpoint	29°F (-2°C)
Visibility	NA
Last update	19 Feb 03:10 AM PST

More Information:

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

Extended Forecast for

3 Miles ESE Danville CA

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

Click here for hazard details and duration

Extreme Cold Warning

Overnight
Low: 38 °F
Rain
Thursday
High: 50 °F
Rain then
Slight Chance
Rain
Thursday Night
Low: 30 °F
Mostly Clear
then Frost
and Patchy
Fog
Friday
High: 52 °F
Frost and
Patchy Fog
then Partly
Sunny
Friday Night
Low: 33 °F
Patchy Frost
Saturday
High: 58 °F
Partly Sunny
Saturday Night
Low: 43 °F
Slight Chance
Rain
Sunday
High: 63 °F
Chance Rain
Sunday Night
Low: 48 °F
Chance Rain

Detailed Forecast

Overnight

Rain. Low around 38. Southeast wind around 10 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Thursday

Rain, mainly before noon. High near 50. West northwest wind 10 to 18 mph, with gusts as high as 32 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Thursday Night

Patchy fog after 3am. Widespread frost, mainly after 3am. Otherwise, mostly clear, with a low around 30. West northwest wind 5 to 7 mph becoming calm after midnight. Winds could gust as high as 20 mph.

Friday

Patchy fog before 9am. Widespread frost before 8am. Otherwise, partly sunny, with a high near 52. Calm wind.

Friday Night

Patchy frost after 11pm. Otherwise, partly cloudy, with a low around 33. Calm wind.

Saturday

Partly sunny, with a high near 58.

Saturday Night

A 20 percent chance of rain after 10pm. Mostly cloudy, with a low around 43.

Sunday

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

Sunday Night

A chance of rain. Mostly cloudy, with a low around 48.