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

BLACK DIAMOND (PIBC1)

Lat: 37.95°NLon: 121.88444°WElev: 1600.0ft.

46°F

8°C

Humidity	65%
Wind Speed	NNW 8 MPH
Barometer	NA
Dewpoint	35°F (2°C)
Visibility	NA
Wind Chill	42°F (6°C)
Last update	31 Dec 03:28 AM PST

More Information:

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

Extended Forecast for

5 Miles SSW Antioch CA

Overnight
Low: 42 °F
Chance Rain
Wednesday
High: 48 °F
Rain
Wednesday Night
Low: 46 °F⇑
Rain
New Year's Day
High: 56 °F
Rain
Thursday Night
Low: 51 °F
Rain Likely
then Chance
Rain
Friday
High: 56 °F
Rain
Friday Night
Low: 52 °F
Showers
Saturday
High: 55 °F
Rain
Saturday Night
Low: 50 °F
Rain

Detailed Forecast

Overnight

A 30 percent chance of rain. Cloudy, with a low around 42. South southwest wind around 5 mph.

Wednesday

Rain, mainly after 10am. High near 48. East southeast wind around 6 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Wednesday Night

Rain. Temperature rising to around 49 by 4am. East wind 6 to 8 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 56. Southeast wind around 9 mph, with gusts as high as 18 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 51. South southeast wind around 9 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 56. 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 52. Chance of precipitation is 90%.

Saturday

Rain. Cloudy, with a high near 55.

Saturday Night

Rain. Cloudy, with a low around 50.

Sunday

Rain likely. Mostly cloudy, with a high near 53.

Sunday Night

Rain likely. Mostly cloudy, with a low around 48.

Monday

Rain likely. Cloudy, with a high near 52.

Monday Night

Rain likely. Mostly cloudy, with a low around 46.