As of 18:39 PDT

Weather in San Quentin, CA

62°Current weather

San Quentin, Thursday, 29 October, 18:39

Overcast. Feels like 61°. High 69°, low 48°.

Pressure29.85 inHg
Wind4 mph W
Humidity59%
Visibility6.2 mi
Dew point48°

Monthly outlook for San Quentin, CA: average high 62.7°, average low 51.8°. That is 1° below the climate normal for October. Precipitation is expected on 6 days (about 2.8 inches), against a normal of 3 days and 1.2 inches. The warmest day looks like 30 October (69.2°), the coolest 31 October (45.8°).

62.7°/51.8°
Average high / low
−1°
Below normal
6 / 3
Wet days / normal
2.8 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
29 October – 7 November64.4°65.6°-0.7°
8 November – 17 November59.7°62.2°-1.3°
18 November – 27 Novemberat normal59.6°—

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 (5 mi).

Fri, 3069° / 49°0Light rain
69 °Light rain

San Quentin, Friday, 30 October

Light rain. High 69°, low 49°.

Pressure29.91 inHg
Wind3 mph SE
Humidity68%
Visibility6.2 mi
Dew point52°
Sat, 3163° / 46°0Partly cloudy
63 °Partly cloudy

San Quentin, Saturday, 31 October

Partly cloudy. High 63°, low 46°.

Pressure29.94 inHg
Wind8.1 mph SW
Humidity57%
Visibility6.2 mi
Dew point47°
Sun, 0165° / 48°0Clear
65 °Clear

San Quentin, Sunday, 1 November

Clear. High 65°, low 48°.

Pressure29.94 inHg
Wind3.7 mph N
Humidity51%
Visibility6.2 mi
Dew point43°
Mon, 0266° / 48°0Overcast
66 °Overcast

San Quentin, Monday, 2 November

Overcast. High 66°, low 48°.

Pressure30.15 inHg
Wind1.8 mph SE
Humidity60%
Visibility6.2 mi
Dew point48°
Tue, 0364° / 47°0Overcast
64 °Overcast

San Quentin, Tuesday, 3 November

Overcast. High 64°, low 47°.

Pressure30.09 inHg
Wind5 mph SW
Humidity80%
Visibility—
Dew point50°
Wed, 0461° / 55°0.17Light rain
61 °Light rain

San Quentin, Wednesday, 4 November

Light rain. High 61°, low 55°.

Pressure29.88 inHg
Wind10.9 mph S
Humidity77%
Visibility—
Dew point52°
Thu, 0562° / 55°0.04Light rain
62 °Light rain

San Quentin, Thursday, 5 November

Light rain. High 62°, low 55°.

Pressure30.00 inHg
Wind13.4 mph W
Humidity75%
Visibility—
Dew point53°
Fri, 0662° / 51°0Mostly clear
62 °Mostly clear

San Quentin, Friday, 6 November

Mostly clear. High 62°, low 51°.

Pressure30.09 inHg
Wind10.9 mph NW
Humidity52%
Visibility—
Dew point39°
Sat, 0761° / 55°0Partly cloudy
61 °Partly cloudy

San Quentin, Saturday, 7 November

Partly cloudy. High 61°, low 55°.

Pressure30.12 inHg
Wind5.8 mph W
Humidity60%
Visibility—
Dew point44°
Sun, 0861° / 57°0.17Rain
61 °Rain

San Quentin, Sunday, 8 November

Rain. High 61°, low 57°.

Pressure30.06 inHg
Wind9.8 mph E
Humidity72%
Visibility—
Dew point49°
Mon, 0963° / 57°1.54Heavy rain
63 °Heavy rain

San Quentin, Monday, 9 November

Heavy rain. High 63°, low 57°.

Pressure29.88 inHg
Wind38.9 mph S
Humidity92%
Visibility—
Dew point57°
Tue, 1061° / 57°0.39Rain
61 °Rain

San Quentin, Tuesday, 10 November

Rain. High 61°, low 57°.

Pressure29.77 inHg
Wind18.8 mph W
Humidity73%
Visibility—
Dew point52°
Wed, 1161° / 56°0.03Light rain
61 °Light rain

San Quentin, Wednesday, 11 November

Light rain. High 61°, low 56°.

Pressure30.12 inHg
Wind15.3 mph SW
Humidity72%
Visibility—
Dew point50°
Thu, 1257° / 52°0.44Rain
57 °Rain

San Quentin, Thursday, 12 November

Rain. High 57°, low 52°.

Pressure29.94 inHg
Wind22.2 mph W
Humidity71%
Visibility—
Dew point44°
Fri, 1356° / 50°0Overcast
56 °Overcast

San Quentin, Friday, 13 November

Overcast. High 56°, low 50°.

Pressure30.21 inHg
Wind5.5 mph NW
Humidity72%
Visibility—
Dew point43°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 1462° / 48°0.06Climate normal
62 °Climate normal

San Quentin, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high62°
Average low48°
Average precipitation0.06 in
Chance of precipitation22%
Record high77° (2008)
Record low37° (1985)
Sun, 1562° / 49°0.09Climate normal
62 °Climate normal

San Quentin, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high62°
Average low49°
Average precipitation0.09 in
Chance of precipitation22%
Record high75° (2010)
Record low39° (1978)
Mon, 1661° / 49°0.12Climate normal
61 °Climate normal

San Quentin, Monday, 16 November

Climate normal for this date — 60-year average.

Average high61°
Average low49°
Average precipitation0.12 in
Chance of precipitation27%
Record high72° (2008)
Record low39° (2009)
Tue, 1761° / 48°0.13Climate normal
61 °Climate normal

San Quentin, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high61°
Average low48°
Average precipitation0.13 in
Chance of precipitation25%
Record high73° (2008)
Record low37° (2000)
Wed, 1861° / 48°0.07Climate normal
61 °Climate normal

San Quentin, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high61°
Average low48°
Average precipitation0.07 in
Chance of precipitation20%
Record high72° (2005)
Record low37° (1964)
Thu, 1960° / 47°0.07Climate normal
60 °Climate normal

San Quentin, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high60°
Average low47°
Average precipitation0.07 in
Chance of precipitation27%
Record high72° (1989)
Record low35° (1985)
Fri, 2060° / 47°0.11Climate normal
60 °Climate normal

San Quentin, Friday, 20 November

Climate normal for this date — 60-year average.

Average high60°
Average low47°
Average precipitation0.11 in
Chance of precipitation28%
Record high71° (1989)
Record low36° (2000)
Sat, 2159° / 47°0.13Climate normal
59 °Climate normal

San Quentin, Saturday, 21 November

Climate normal for this date — 60-year average.

Average high59°
Average low47°
Average precipitation0.13 in
Chance of precipitation27%
Record high69° (2005)
Record low37° (1964)
Sun, 2260° / 47°0.12Climate normal
60 °Climate normal

San Quentin, Sunday, 22 November

Climate normal for this date — 60-year average.

Average high60°
Average low47°
Average precipitation0.12 in
Chance of precipitation30%
Record high69° (2005)
Record low37° (1994)
Mon, 2360° / 46°0.06Climate normal
60 °Climate normal

San Quentin, Monday, 23 November

Climate normal for this date — 60-year average.

Average high60°
Average low46°
Average precipitation0.06 in
Chance of precipitation22%
Record high69° (1995)
Record low37° (1994)
Tue, 2460° / 45°0.07Climate normal
60 °Climate normal

San Quentin, Tuesday, 24 November

Climate normal for this date — 60-year average.

Average high60°
Average low45°
Average precipitation0.07 in
Chance of precipitation17%
Record high69° (1995)
Record low36° (2007)
Wed, 2559° / 46°0.06Climate normal
59 °Climate normal

San Quentin, Wednesday, 25 November

Climate normal for this date — 60-year average.

Average high59°
Average low46°
Average precipitation0.06 in
Chance of precipitation22%
Record high71° (1975)
Record low35° (2010)
Thu, 2659° / 45°0.06Climate normal
59 °Climate normal

San Quentin, Thursday, 26 November

Climate normal for this date — 60-year average.

Average high59°
Average low45°
Average precipitation0.06 in
Chance of precipitation22%
Record high67° (2002)
Record low35° (2010)
Fri, 2758° / 45°0.08Climate normal
58 °Climate normal

San Quentin, Friday, 27 November

Climate normal for this date — 60-year average.

Average high58°
Average low45°
Average precipitation0.08 in
Chance of precipitation23%
Record high67° (1969)
Record low37° (1987)

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 San Quentin, 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 San Quentin, 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.