Major Winter Storm to Impact the Mid-Atlantic and Northeast; Inclement Weather in the Pacific Northwest

A major winter storm is expected to bring heavy snow, strong winds, and coastal flooding across the Mid-Atlantic and Northeast that may cause impossible travel conditions and power outages. Blizzard conditions are possible along coastal areas from the DelMarVa Peninsula through southeastern New England. Wet weather and strong winds return to the Pacific Northwest and north-central California. Read More >

Current conditions at

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

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

28°F

-2°C

Humidity	99%
Wind Speed	N 0 MPH
Barometer	NA
Dewpoint	28°F (-2°C)
Visibility	NA
Last update	20 Feb 03:25 AM PST

More Information:

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

Extended Forecast for

5 Miles NNE San Ramon CA

Today
High: 67 °F
Partly Sunny
Tonight
Low: 51 °F
Chance Rain
Tuesday
High: 63 °F
Rain
Tuesday Night
Low: 52 °F
Rain then
Chance Rain
Wednesday
High: 66 °F
Slight Chance
Rain and
Patchy Fog
then Partly
Sunny
Wednesday Night
Low: 47 °F
Partly Cloudy
Thursday
High: 67 °F
Mostly Sunny
Thursday Night
Low: 48 °F
Mostly Cloudy
Friday
High: 69 °F
Partly Sunny

Detailed Forecast

Today

Partly sunny, with a high near 67. Light and variable wind.

Tonight

A slight chance of rain before 8pm, then a chance of rain after 9pm. Mostly cloudy, with a low around 51. Light and variable wind. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

Tuesday

Rain, mainly after 10am. High near 63. South southwest wind 5 to 7 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

Tuesday Night

Rain, mainly before 10pm. Low around 52. South southwest wind 3 to 6 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Wednesday

A 20 percent chance of rain before 10am. Patchy fog before 10am. Otherwise, partly sunny, with a high near 66. Calm wind becoming west northwest around 5 mph in the afternoon.

Wednesday Night

Partly cloudy, with a low around 47.

Thursday

Mostly sunny, with a high near 67.

Thursday Night

Mostly cloudy, with a low around 48.

Friday

Partly sunny, with a high near 69.

Friday Night

Mostly cloudy, with a low around 49.

Saturday

A slight chance of rain. Partly sunny, with a high near 69.