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

3 Miles S Clayton CA

Today
High: 58 °F
Mostly Sunny
Tonight
Low: 45 °F
Mostly Clear
Monday
High: 61 °F
Mostly Sunny
Monday Night
Low: 53 °F
Chance Rain
Tuesday
High: 58 °F
Rain
Tuesday Night
Low: 54 °F
Rain
Wednesday
High: 60 °F
Chance Rain
Wednesday Night
Low: 51 °F
Slight Chance
Rain then
Mostly Cloudy
Thursday
High: 63 °F
Partly Sunny

Detailed Forecast

Today

Mostly sunny, with a high near 58. South wind 6 to 10 mph, with gusts as high as 20 mph.

Tonight

Mostly clear, with a low around 45. South wind around 6 mph.

Monday

Mostly sunny, with a high near 61. East northeast wind around 6 mph.

Monday Night

A 40 percent chance of rain after 10pm. Mostly cloudy, with a low around 53. South wind 6 to 8 mph. New precipitation amounts of less than a tenth of an inch possible.

Tuesday

Rain. High near 58. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Tuesday Night

Rain, mainly before 4am. Low around 54. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Wednesday

A 40 percent chance of rain, mainly before 10am. Mostly cloudy, with a high near 60.

Wednesday Night

A slight chance of rain before 10pm. Mostly cloudy, with a low around 51.

Thursday

Partly sunny, with a high near 63.

Thursday Night

Mostly cloudy, with a low around 52.

Friday

Mostly sunny, with a high near 65.