Marine Weather Net

Mill Valley, CA Weather Forecast




Mill Valley, California

 Lat: 37.91N, Lon: 122.54W

Current Conditions Updated: 956 AM PST FRI DEC 12 2025

Mostly Clear
Temp: 48°F
  • Humidity:
  • 82%
  • Winds:
  • 7 MPH SE
  • Gusts:
  • N/A MPH
  • Barometer:
  • 30.12 in.
  • Dewpoint:
  • 43°F
  • Heat index:
  • 48°F

  • Sunrise:
  • 7:14 AM PST
  • Sunset:
  • 4:50 PM PST
  • Moonrise:
  • 12:28 AM PST
  • Moonset:
  • 12:40 PM PST

REST OF TODAY

SUNNY

Hi: 60°F
Lo: 50°F

SATURDAY

SUNNY

Hi: 55°F
Lo: 47°F

SUNDAY

PARTLY CLOUDY
Hi: 55°F
Lo: 45°F

MONDAY

MOSTLY CLOUDY
Hi: 55°F
Lo: 45°F
Weather Forecast In Detail:
Forecast Issued: 1002 AM PST Fri Dec 12 2025

DENSE FOG ADVISORY IN EFFECT UNTIL 11 AM PST THIS MORNING
Rest Of Today...Sunny. Highs in the upper 40s to mid 60s. Southeast winds 10 to 15 mph.
Tonight...Mostly clear. Lows in the upper 30s to lower 50s. Southeast winds 5 to 10 mph.
Saturday...Sunny. Patchy dense fog in the morning. Highs in the lower 50s to mid 60s. Southeast winds 5 to 10 mph.
Saturday Night...Mostly clear in the evening then becoming partly cloudy. Patchy fog in the evening. Areas of fog after midnight. Lows in the 30s to upper 40s. Southwest winds up to 5 mph...Becoming east after midnight.
Sunday...Partly cloudy. Areas of fog in the morning. Highs in the lower 50s to mid 60s. Northeast winds around 5 mph...Becoming southeast up to 5 mph in the afternoon.
Sunday Night...Partly cloudy. Patchy fog. Lows in the 40s.
Monday...Mostly cloudy. Patchy fog. Highs in the 50s to mid 60s.
Monday Night...Mostly cloudy. Areas of fog. A slight chance of rain. Lows in the 40s to mid 50s.
Tuesday...Areas of fog. Rain likely. Highs in the mid 50s to lower 60s.
Tuesday Night...Patchy fog. Rain likely. Lows in the upper 40s to mid 50s.
Wednesday...Mostly cloudy. Patchy fog. A chance of rain. Highs in the 50s to lower 60s. Lows in the 40s to lower 50s. && temperature / precipitation santa rosa 58 40 60 / san rafael 51 43 53 / napa 52 40 55 /
Thursday...Mostly cloudy. Patchy fog. A chance of rain. Highs in the 50s to lower 60s. Lows in the 40s to lower 50s. && temperature / precipitation santa rosa 58 40 60 / san rafael 51 43 53 / napa 52 40 55 /
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