Heavy Rain Across the Southern US; Unsettled Pattern in the Pacific Northwest

A storm system will bring heavy rainfall, thunderstorms, and flooding threats to portions of the Southern Plains Friday, the Lower Mississippi Valley Saturday, and the Southeast into the Mid-Atlantic on Sunday. High elevation snow and mixed precipitation and rain in the lower elevations will impact the Pacific Northwest this weekend before a stronger system moves in early next week. Read More >

Current conditions at

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

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

44°F

7°C

Humidity	86%
Wind Speed	NW 14 MPH
Barometer	NA
Dewpoint	40°F (4°C)
Visibility	NA
Wind Chill	37°F (3°C)
Last update	12 Feb 09:35 PM PST

More Information:

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

Extended Forecast for

4 Miles SSE Clayton CA

Tonight
Low: 48 °F
Mostly Clear
Friday
High: 56 °F
Sunny
Friday Night
Low: 47 °F
Increasing
Clouds
Saturday
High: 55 °F
Mostly Cloudy
Saturday Night
Low: 49 °F
Chance
Showers
Sunday
High: 54 °F
Showers
Sunday Night
Low: 49 °F
Showers
Washington's Birthday
High: 52 °F
Showers
Monday Night
Low: 46 °F
Showers

Detailed Forecast

Tonight

Mostly clear, with a steady temperature around 48. Northwest wind around 9 mph.

Friday

Sunny, with a high near 56. West southwest wind 6 to 9 mph.

Friday Night

Increasing clouds, with a low around 47. South southwest wind around 10 mph, with gusts as high as 18 mph.

Saturday

Mostly cloudy, with a high near 55. South southwest wind around 7 mph.

Saturday Night

A 40 percent chance of showers, mainly after 10pm. Mostly cloudy, with a low around 49. South wind around 15 mph, with gusts as high as 28 mph. New precipitation amounts of less than a tenth of an inch possible.

Sunday

Showers, mainly after 10am. High near 54. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

Sunday Night

Showers. Low around 49. Chance of precipitation is 90%.

Washington's Birthday

Showers, with thunderstorms also possible after 4pm. Cloudy, with a high near 52.

Monday Night

Showers and possibly a thunderstorm. Cloudy, with a low around 46.

Tuesday

Rain showers before 10am, then rain, possibly mixed with snow showers. Mostly cloudy, with a high near 49.

Tuesday Night

Rain and snow showers likely. Mostly cloudy, with a low around 42.