Monthly outlook for San Quentin, CA: average high 58.5°, average low 51.8°. That is 0.8° below the climate normal for November. Precipitation is expected on 9 days (about 7.1 inches), against a normal of 4 days and 1.5 inches. The warmest day looks like 24 November (62.1°), the coolest 17 November (42.9°).
58.5°/51.8°
Average high / low
−0.8°
Below normal
9 / 4
Wet days / normal
7.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
14 November – 23 November
58.9°
60.6°
-1°
24 November – 3 December
57.8°
58.5°
-0.3°
4 December – 13 December
at normal
56.7°
—
November records over 66 years
80.6°1 November 1966All-time high
34.2°30 November 2004All-time low
Climate normals and records are computed from the nearest reference point — Marin City (5 mi).
Sun, 1560° / 53°0.67
60 °
San Quentin, Sunday, 15 November
Heavy rain. High 60°, low 53°.
Pressure30.00 inHg
Wind11.8 mph S
Humidity87%
Visibility2.5 mi
Dew point56°
Mon, 1659° / 47°0.01
59 °
San Quentin, Monday, 16 November
Light rain. High 59°, low 47°.
Pressure30.12 inHg
Wind6.3 mph NW
Humidity51%
Visibility6.2 mi
Dew point42°
Tue, 1759° / 43°0
59 °
San Quentin, Tuesday, 17 November
Clear. High 59°, low 43°.
Pressure30.03 inHg
Wind3 mph NW
Humidity50%
Visibility6.2 mi
Dew point39°
Wed, 1855° / 51°1.93
55 °
San Quentin, Wednesday, 18 November
Heavy rain. High 55°, low 51°.
Pressure29.88 inHg
Wind17.1 mph S
Humidity92%
Visibility—
Dew point51°
Thu, 1956° / 50°0.91
56 °
San Quentin, Thursday, 19 November
Rain. High 56°, low 50°.
Pressure29.77 inHg
Wind14.2 mph SE
Humidity91%
Visibility—
Dew point49°
Fri, 2060° / 54°0.04
60 °
San Quentin, Friday, 20 November
Light rain. High 60°, low 54°.
Pressure30.03 inHg
Wind9.8 mph W
Humidity71%
Visibility—
Dew point48°
Sat, 2160° / 54°0
60 °
San Quentin, Saturday, 21 November
Overcast. High 60°, low 54°.
Pressure30.12 inHg
Wind7.7 mph E
Humidity71%
Visibility—
Dew point46°
Sun, 2260° / 54°0.44
60 °
San Quentin, Sunday, 22 November
Rain. High 60°, low 54°.
Pressure29.97 inHg
Wind23.8 mph S
Humidity68%
Visibility—
Dew point46°
Mon, 2361° / 58°0.61
61 °
San Quentin, Monday, 23 November
Rain. High 61°, low 58°.
Pressure30.03 inHg
Wind23 mph S
Humidity80%
Visibility—
Dew point53°
Tue, 2462° / 58°1.87
62 °
San Quentin, Tuesday, 24 November
Rain. High 62°, low 58°.
Pressure29.94 inHg
Wind30.6 mph S
Humidity87%
Visibility—
Dew point55°
Wed, 2559° / 55°0.37
59 °
San Quentin, Wednesday, 25 November
Rain. High 59°, low 55°.
Pressure30.03 inHg
Wind14.7 mph W
Humidity72%
Visibility—
Dew point50°
Thu, 2658° / 53°0.19
58 °
San Quentin, Thursday, 26 November
Rain. High 58°, low 53°.
Pressure30.15 inHg
Wind19.6 mph NW
Humidity61%
Visibility—
Dew point42°
Fri, 2757° / 49°0
57 °
San Quentin, Friday, 27 November
Clear. High 57°, low 49°.
Pressure30.30 inHg
Wind7.7 mph NW
Humidity60%
Visibility—
Dew point38°
Sat, 2855° / 49°0
55 °
San Quentin, Saturday, 28 November
Mostly clear. High 55°, low 49°.
Pressure30.42 inHg
Wind11.1 mph NE
Humidity63%
Visibility—
Dew point38°
Sun, 2956° / 50°0
56 °
San Quentin, Sunday, 29 November
Overcast. High 56°, low 50°.
Pressure30.45 inHg
Wind10.2 mph NE
Humidity66%
Visibility—
Dew point40°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 3058° / 45°0.16
58 °
San Quentin, Monday, 30 November
Climate normal for this date — 60-year average.
Average high58°
Average low45°
Average precipitation0.16 in
Chance of precipitation25%
Record high68° (1977)
Record low34° (2004)
Tue, 0158° / 45°0.16
58 °
San Quentin, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high58°
Average low45°
Average precipitation0.16 in
Chance of precipitation28%
Record high65° (2011)
Record low36° (2010)
Wed, 0258° / 46°0.22
58 °
San Quentin, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high58°
Average low46°
Average precipitation0.22 in
Chance of precipitation27%
Record high68° (2011)
Record low36° (2022)
Thu, 0358° / 46°0.18
58 °
San Quentin, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high58°
Average low46°
Average precipitation0.18 in
Chance of precipitation32%
Record high67° (1979)
Record low38° (1990)
Fri, 0458° / 45°0.1
58 °
San Quentin, Friday, 4 December
Climate normal for this date — 60-year average.
Average high58°
Average low45°
Average precipitation0.1 in
Chance of precipitation32%
Record high66° (1979)
Record low36° (1990)
Sat, 0558° / 46°0.1
58 °
San Quentin, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high58°
Average low46°
Average precipitation0.1 in
Chance of precipitation28%
Record high66° (1976)
Record low32° (1972)
Sun, 0658° / 46°0.09
58 °
San Quentin, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high58°
Average low46°
Average precipitation0.09 in
Chance of precipitation32%
Record high66° (1962)
Record low33° (2013)
Mon, 0757° / 45°0.1
57 °
San Quentin, Monday, 7 December
Climate normal for this date — 60-year average.
Average high57°
Average low45°
Average precipitation0.1 in
Chance of precipitation33%
Record high69° (2020)
Record low37° (2009)
Tue, 0857° / 45°0.09
57 °
San Quentin, Tuesday, 8 December
Climate normal for this date — 60-year average.
Average high57°
Average low45°
Average precipitation0.09 in
Chance of precipitation27%
Record high66° (1975)
Record low31° (2013)
Wed, 0957° / 44°0.11
57 °
San Quentin, Wednesday, 9 December
Climate normal for this date — 60-year average.
Average high57°
Average low44°
Average precipitation0.11 in
Chance of precipitation28%
Record high65° (1990)
Record low28° (1972)
Thu, 1056° / 44°0.12
56 °
San Quentin, Thursday, 10 December
Climate normal for this date — 60-year average.
Average high56°
Average low44°
Average precipitation0.12 in
Chance of precipitation28%
Record high64° (2012)
Record low30° (1972)
Fri, 1156° / 43°0.15
56 °
San Quentin, Friday, 11 December
Climate normal for this date — 60-year average.
Average high56°
Average low43°
Average precipitation0.15 in
Chance of precipitation28%
Record high64° (1988)
Record low28° (1972)
Sat, 1255° / 44°0.15
55 °
San Quentin, Saturday, 12 December
Climate normal for this date — 60-year average.
Average high55°
Average low44°
Average precipitation0.15 in
Chance of precipitation33%
Record high64° (1988)
Record low30° (1972)
Sun, 1355° / 44°0.11
55 °
San Quentin, Sunday, 13 December
Climate normal for this date — 60-year average.
Average high55°
Average low44°
Average precipitation0.11 in
Chance of precipitation25%
Record high61° (1978)
Record low26° (1972)
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.