Heavy Rainfall to Bring Flooding Threat to California; Heavy Snow in the Sierra

A strong atmospheric river will bring heavy rainfall to California through the holiday week. The heaviest rainfall is expected on Wednesday in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall is expected in the Sierra Nevada from the atmospheric river, raising concerns for major snow‐load impacts. Travel may be difficult to impossible over the passes. Read More >

Hazardous Weather Conditions

Current conditions at

DW7094 Mill Valley (D7094)

Lat: 37.91333°NLon: 122.54833°WElev: 190.0ft.

N/A

Humidity	NA
Wind Speed	NA NA MPH
Barometer	29.46 in (997.63 mb)
Dewpoint	N/A
Visibility	NA
Last update	NA

More Information:

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

Extended Forecast for

Larkspur CA

Flood Watch December 24, 01:18am until December 26, 10:00pm

Wind Advisory until December 24, 04:00am

Click here for hazard details and duration

Flood Watch

Wind Advisory

Flood Watch December 24, 01:18am until December 26, 10:00pm
Wind Advisory until December 24, 04:00am
NOW: Multiple hazards in effect
Click HERE for Details
Overnight
Low: 51 °F
Showers and
Breezy
Wednesday
High: 57 °F
Chance
Showers then
Severe
Thunderstorms
Wednesday Night
Low: 53 °F
Severe
Thunderstorms
Christmas Day
High: 54 °F
Severe
Thunderstorms
Thursday Night
Low: 48 °F
Severe
Thunderstorms
Friday
High: 55 °F
Showers
Friday Night
Low: 44 °F
Showers
Likely
Saturday
High: 54 °F
Chance
Showers and
Patchy Fog

Detailed Forecast

Overnight

Showers and possibly a thunderstorm before 4am, then a chance of showers and thunderstorms after 4am. Low around 51. Breezy, with a south wind 22 to 25 mph, with gusts as high as 55 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Wednesday

A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 4pm. Some of the storms could be severe. High near 57. South wind 8 to 11 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Wednesday Night

Showers and thunderstorms before 4am, then showers and possibly a thunderstorm, mainly after 4am. Some of the storms could be severe. Steady temperature around 53. South wind 15 to 21 mph, with gusts as high as 50 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

Christmas Day

Showers and possibly a thunderstorm before 9am, then showers between 9am and 1pm, then showers and possibly a thunderstorm after 1pm. Some of the storms could be severe. High near 54. South wind 16 to 21 mph, with gusts as high as 37 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

Thursday Night

Showers and possibly a thunderstorm before 7pm, then showers between 7pm and 10pm, then showers and possibly a thunderstorm after 10pm. Some of the storms could be severe. Low around 48. South southwest wind 17 to 20 mph, with gusts as high as 37 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

Friday

Showers, with thunderstorms also possible after 1pm. High near 55. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Friday Night

Showers likely and possibly a thunderstorm before 10pm, then a chance of showers and thunderstorms after 10pm. Mostly cloudy, with a low around 44. Chance of precipitation is 70%.

Saturday

A chance of showers, mainly before 10am. Patchy fog before 10am. Otherwise, partly sunny, with a high near 54.

Saturday Night

Mostly clear, with a low around 40.

Sunday

Mostly sunny, with a high near 53.

Sunday Night

Mostly clear, with a low around 40.

Monday

Mostly sunny, with a high near 53.

Monday Night

Mostly clear, with a low around 41.