As of 03:27 PDT

Weather in Mill Valley, CA

57°Current weather

Mill Valley, Saturday, 10 October, 03:27

Partly cloudy. Feels like 56°. High 65°, low 45°.

Pressure29.68 inHg
Wind10 mph S
Humidity81%
Visibility3.2 mi
Dew point51°

Monthly outlook for Mill Valley, CA: average high 63.8°, average low 50.4°. That is 3.2° below the climate normal for October. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 2 days and 0.7 inches. The warmest day looks like 15 October (71.9°), the coolest 11 October (40.9°).

63.8°/50.4°
Average high / low
−3.2°
Below normal
0 / 2
Wet days / normal
0.0 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
10 October – 19 October65.1°70.3°-2.8°
20 October – 29 October61.7°67.7°-3.4°
30 October – 8 Novemberat normal65.3°—

October records over 66 years

98.1°6 October 2024All-time high
41.2°31 October 1989All-time low

Climate normals and records are computed from the nearest reference point — Marin City (3 mi).

Sun, 1168° / 41°0Clear
68 °Clear

Mill Valley, Sunday, 11 October

Clear. High 68°, low 41°.

Pressure29.53 inHg
Wind5 mph SW
Humidity50%
Visibility6.2 mi
Dew point46°
Mon, 1261° / 46°0Clear
61 °Clear

Mill Valley, Monday, 12 October

Clear. High 61°, low 46°.

Pressure29.85 inHg
Wind3.8 mph SW
Humidity50%
Visibility6.2 mi
Dew point45°
Tue, 1366° / 44°0Clear
66 °Clear

Mill Valley, Tuesday, 13 October

Clear. High 66°, low 44°.

Pressure30.03 inHg
Wind1.1 mph E
Humidity36%
Visibility6.2 mi
Dew point37°
Wed, 1466° / 45°0Mostly clear
66 °Mostly clear

Mill Valley, Wednesday, 14 October

Mostly clear. High 66°, low 45°.

Pressure30.12 inHg
Wind4.4 mph W
Humidity58%
Visibility—
Dew point43°
Thu, 1572° / 46°0Clear
72 °Clear

Mill Valley, Thursday, 15 October

Clear. High 72°, low 46°.

Pressure30.12 inHg
Wind5.7 mph NW
Humidity46%
Visibility—
Dew point40°
Fri, 1665° / 56°0Clear
65 °Clear

Mill Valley, Friday, 16 October

Clear. High 65°, low 56°.

Pressure30.09 inHg
Wind7.6 mph W
Humidity45%
Visibility—
Dew point40°
Sat, 1767° / 57°0Clear
67 °Clear

Mill Valley, Saturday, 17 October

Clear. High 67°, low 57°.

Pressure30.00 inHg
Wind7.2 mph W
Humidity45%
Visibility—
Dew point40°
Sun, 1862° / 54°0Clear
62 °Clear

Mill Valley, Sunday, 18 October

Clear. High 62°, low 54°.

Pressure30.00 inHg
Wind8.5 mph W
Humidity61%
Visibility—
Dew point47°
Mon, 1960° / 52°0Clear
60 °Clear

Mill Valley, Monday, 19 October

Clear. High 60°, low 52°.

Pressure29.97 inHg
Wind11.3 mph W
Humidity66%
Visibility—
Dew point47°
Tue, 2058° / 51°0Mostly clear
58 °Mostly clear

Mill Valley, Tuesday, 20 October

Mostly clear. High 58°, low 51°.

Pressure29.97 inHg
Wind12.7 mph W
Humidity71%
Visibility—
Dew point47°
Wed, 2159° / 50°0Partly cloudy
59 °Partly cloudy

Mill Valley, Wednesday, 21 October

Partly cloudy. High 59°, low 50°.

Pressure30.03 inHg
Wind13 mph NW
Humidity50%
Visibility—
Dew point38°
Thu, 2262° / 54°0Partly cloudy
62 °Partly cloudy

Mill Valley, Thursday, 22 October

Partly cloudy. High 62°, low 54°.

Pressure30.09 inHg
Wind8.8 mph W
Humidity44%
Visibility—
Dew point37°
Fri, 2365° / 55°0Overcast
65 °Overcast

Mill Valley, Friday, 23 October

Overcast. High 65°, low 55°.

Pressure30.12 inHg
Wind7.3 mph NW
Humidity58%
Visibility—
Dew point46°
Sat, 2465° / 57°0Partly cloudy
65 °Partly cloudy

Mill Valley, Saturday, 24 October

Partly cloudy. High 65°, low 57°.

Pressure30.00 inHg
Wind9 mph W
Humidity57%
Visibility—
Dew point47°
Sun, 2561° / 54°0Overcast
61 °Overcast

Mill Valley, Sunday, 25 October

Overcast. High 61°, low 54°.

Pressure29.85 inHg
Wind19.3 mph W
Humidity70%
Visibility—
Dew point50°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2668° / 51°0.05Climate normal
68 °Climate normal

Mill Valley, Monday, 26 October

Climate normal for this date — 60-year average.

Average high68°
Average low51°
Average precipitation0.05 in
Chance of precipitation12%
Record high86° (2003)
Record low45° (2022)
Tue, 2767° / 51°0.03Climate normal
67 °Climate normal

Mill Valley, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high67°
Average low51°
Average precipitation0.03 in
Chance of precipitation7%
Record high84° (2003)
Record low43° (2010)
Wed, 2866° / 51°0.07Climate normal
66 °Climate normal

Mill Valley, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high66°
Average low51°
Average precipitation0.07 in
Chance of precipitation17%
Record high82° (2003)
Record low43° (2023)
Thu, 2966° / 51°0.06Climate normal
66 °Climate normal

Mill Valley, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high66°
Average low51°
Average precipitation0.06 in
Chance of precipitation22%
Record high78° (1965)
Record low43° (1971)
Fri, 3066° / 51°0.06Climate normal
66 °Climate normal

Mill Valley, Friday, 30 October

Climate normal for this date — 60-year average.

Average high66°
Average low51°
Average precipitation0.06 in
Chance of precipitation17%
Record high80° (1966)
Record low42° (1971)
Sat, 3167° / 50°0.03Climate normal
67 °Climate normal

Mill Valley, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high67°
Average low50°
Average precipitation0.03 in
Chance of precipitation17%
Record high81° (1966)
Record low41° (1989)
Sun, 0167° / 50°0.06Climate normal
67 °Climate normal

Mill Valley, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high67°
Average low50°
Average precipitation0.06 in
Chance of precipitation15%
Record high81° (1966)
Record low41° (1984)
Mon, 0267° / 50°0.04Climate normal
67 °Climate normal

Mill Valley, Monday, 2 November

Climate normal for this date — 60-year average.

Average high67°
Average low50°
Average precipitation0.04 in
Chance of precipitation13%
Record high80° (1997)
Record low42° (1974)
Tue, 0366° / 50°0.03Climate normal
66 °Climate normal

Mill Valley, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high66°
Average low50°
Average precipitation0.03 in
Chance of precipitation12%
Record high80° (1976)
Record low43° (1971)
Wed, 0466° / 50°0.03Climate normal
66 °Climate normal

Mill Valley, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high66°
Average low50°
Average precipitation0.03 in
Chance of precipitation10%
Record high80° (1976)
Record low42° (2003)
Thu, 0564° / 50°0.06Climate normal
64 °Climate normal

Mill Valley, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high64°
Average low50°
Average precipitation0.06 in
Chance of precipitation15%
Record high77° (2020)
Record low44° (1971)
Fri, 0664° / 51°0.07Climate normal
64 °Climate normal

Mill Valley, Friday, 6 November

Climate normal for this date — 60-year average.

Average high64°
Average low51°
Average precipitation0.07 in
Chance of precipitation20%
Record high77° (1976)
Record low42° (1996)
Sat, 0764° / 50°0.09Climate normal
64 °Climate normal

Mill Valley, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high64°
Average low50°
Average precipitation0.09 in
Chance of precipitation25%
Record high79° (1991)
Record low42° (1971)
Sun, 0863° / 49°0.08Climate normal
63 °Climate normal

Mill Valley, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high63°
Average low49°
Average precipitation0.08 in
Chance of precipitation25%
Record high75° (1976)
Record low41° (1983)

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Mill Valley, CA are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Mill Valley, CA since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.