Rapid Warm-Up Forecast Across Much of the Lower 48 Today and Tuesday

Most of the U.S. starts the week calm and unseasonably warm. The Heartland will be warmest, with highs 25–30° above average. Only the Gulf Coast stays chilly. Rain today is limited to western Washington while lake effect snow continues east of Lake Ontario. Cooler air returns after Tuesday, bringing a wintry mix to the Midwest and Northeast by Wednesday. Read More >

Hazardous Weather Conditions

Cold Weather Advisory in effect from January 12, 01:00 AM PST until January 12, 09:00 AM PST

Current conditions at

BLACK DIAMOND (PIBC1)

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

48°F

9°C

Humidity	49%
Wind Speed	N 7 MPH
Barometer	NA
Dewpoint	30°F (-1°C)
Visibility	NA
Wind Chill	45°F (7°C)
Last update	12 Jan 04:28 AM PST

More Information:

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

Extended Forecast for

3 Miles NNE Brentwood CA

Cold Weather Advisory until January 12, 09:00am

Click here for hazard details and duration

Cold Weather Advisory

Cold Weather Advisory until January 12, 09:00am
NOW until 9:00am Mon
Cold Weather Advisory
Overnight
Low: 35 °F
Areas Frost
and Patchy
Fog
Monday
High: 54 °F
Patchy Frost
and Patchy
Dense Fog
then Sunny
Monday Night
Low: 38 °F
Mostly Clear
Tuesday
High: 57 °F
Mostly Sunny
Tuesday Night
Low: 39 °F
Mostly Clear
Wednesday
High: 58 °F
Mostly Sunny
Wednesday Night
Low: 41 °F
Partly Cloudy
Thursday
High: 59 °F
Mostly Sunny

Detailed Forecast

Overnight

Patchy fog. Areas of frost. Otherwise, partly cloudy, with a low around 35. Calm wind.

Monday

Patchy dense fog before 7am. Patchy frost before 9am. Otherwise, mostly sunny, with a high near 54. Calm wind becoming north around 6 mph in the afternoon.

Monday Night

Mostly clear, with a low around 38. Calm wind.

Tuesday

Mostly sunny, with a high near 57. Calm wind becoming north northeast around 5 mph in the afternoon.

Tuesday Night

Mostly clear, with a low around 39. Calm wind.

Wednesday

Mostly sunny, with a high near 58.

Wednesday Night

Partly cloudy, with a low around 41.

Thursday

Mostly sunny, with a high near 59.