Snow Squalls May Impact New Year's Eve Travel from the Great Lakes to the Mid-Atlantic; Heavy Rain Returns to California

Lake effect snow will continue through Friday bringing significant snowfall to areas east to southeast of the Great Lakes. Snow squalls may impact New Year's Eve travel this evening and overnight across parts of the Great Lakes, Ohio Valley, Mid-Atlantic, and Upstate New York. Heavy rain will bring another flash flooding threat for southern California New Year's Eve into New Year's Day. Read More >

Current conditions at

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

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

52°F

11°C

Humidity	51%
Wind Speed	SSE 7 MPH
Barometer	NA
Dewpoint	35°F (2°C)
Visibility	NA
Last update	31 Dec 06:55 AM PST

More Information:

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

Extended Forecast for

4 Miles ENE Danville CA

Today
High: 53 °F
Rain Likely
Tonight
Low: 45 °F
Rain
New Year's Day
High: 59 °F
Rain
Thursday Night
Low: 49 °F
Rain Likely
then Chance
Rain
Friday
High: 59 °F
Rain
Friday Night
Low: 50 °F
Showers
Saturday
High: 58 °F
Rain
Saturday Night
Low: 47 °F
Rain
Sunday
High: 56 °F
Rain Likely

Detailed Forecast

Today

Rain likely, mainly after 10am. Cloudy, with a high near 53. East northeast wind around 6 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

Tonight

Rain. Low around 45. East wind 8 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

New Year's Day

Rain. High near 59. South wind 8 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Thursday Night

Rain likely, mainly before 10pm. Mostly cloudy, with a low around 49. Southeast wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

Friday

Rain, mainly after 10am. High near 59. South southeast wind 10 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

Friday Night

Rain before 10pm, then showers and possibly a thunderstorm between 10pm and 4am, then rain and possibly a thunderstorm after 4am. Low around 50. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

Saturday

Rain. High near 58. Chance of precipitation is 90%.

Saturday Night

Rain. Cloudy, with a low around 47.

Sunday

Rain likely. Mostly cloudy, with a high near 56.

Sunday Night

Rain likely. Mostly cloudy, with a low around 45.

Monday

Rain likely. Mostly cloudy, with a high near 55.

Monday Night

Rain likely. Mostly cloudy, with a low around 43.