Frigid Cold in the East; Snow Continues in the Great Lakes

A frigid cold airmass will continue to bring colder weather across the eastern two thirds of the country early this week. Record low temperatures are expected to be tied or broken across the Southeast and Florida. Periods snow will continue downwind of the Great Lakes and in portions of interior New England through Tuesday afternoon, with several inches of snowfall accumulation expected. Read More >

Current conditions at

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

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

66°F

19°C

Humidity	30%
Wind Speed	E 7 MPH
Barometer	NA
Dewpoint	34°F (1°C)
Visibility	NA
Last update	11 Nov 05:20 AM PST

More Information:

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

Extended Forecast for

3 Miles NNE San Ramon CA

Veterans Day
High: 77 °F
Mostly Cloudy
Tonight
Low: 52 °F
Partly Cloudy
then Patchy
Fog
Wednesday
High: 69 °F
Chance
Showers and
Patchy Fog
Wednesday Night
Low: 54 °F
Showers
Thursday
High: 63 °F
Showers then
Showers
Likely
Thursday Night
Low: 45 °F
Chance
Showers
Friday
High: 60 °F
Chance
Showers
Friday Night
Low: 45 °F
Partly Cloudy
then Patchy
Fog
Saturday
High: 64 °F
Areas Fog
then Sunny

Detailed Forecast

Veterans Day

Mostly cloudy, with a high near 77. Northeast wind around 5 mph becoming calm.

Tonight

Patchy fog between 3am and 5am. Otherwise, mostly cloudy, then gradually becoming mostly clear, with a low around 52. Calm wind.

Wednesday

A 30 percent chance of showers, mainly after 4pm. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 69. South wind 5 to 15 mph, with gusts as high as 22 mph.

Wednesday Night

Showers, with thunderstorms also possible after 4am. Low around 54. South southeast wind 11 to 16 mph, with gusts as high as 37 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Thursday

Showers and possibly a thunderstorm. High near 63. West southwest wind 13 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

Thursday Night

A 40 percent chance of showers. Mostly cloudy, with a low around 45. New precipitation amounts of less than a tenth of an inch possible.

Friday

A 30 percent chance of showers. Partly sunny, with a high near 60.

Friday Night

Patchy fog after 3am. Otherwise, partly cloudy, with a low around 45.

Saturday

Areas of fog before 10am. Otherwise, sunny, with a high near 64.

Saturday Night

Patchy fog after 1am. Otherwise, partly cloudy, with a low around 47.

Sunday

A slight chance of showers. Patchy fog. Otherwise, partly sunny, with a high near 63.