Monthly outlook for San Quentin, CA: average high 59.9°, average low 52.3°. That is 0.1° above the climate normal for November. Precipitation is expected on 7 days (about 5.6 inches), against a normal of 4 days and 1.6 inches. The warmest day looks like 27 November (64°), the coolest 17 November (43.5°).
59.9°/52.3°
Average high / low
+0.1°
Above normal
7 / 4
Wet days / normal
5.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
15 November – 24 November
59°
60.4°
-0.8°
25 November – 4 December
61.4°
58.3°
+1.7°
5 December – 14 December
at normal
56.4°
—
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).
Mon, 1661° / 47°0
61 °
San Quentin, Monday, 16 November
Clear. High 61°, low 47°.
Pressure30.12 inHg
Wind6 mph NW
Humidity50%
Visibility6.2 mi
Dew point41°
Tue, 1760° / 44°0.02
60 °
San Quentin, Tuesday, 17 November
Light rain. High 60°, low 44°.
Pressure30.06 inHg
Wind2.1 mph NW
Humidity50%
Visibility6.2 mi
Dew point39°
Wed, 1855° / 50°1.63
55 °
San Quentin, Wednesday, 18 November
Heavy rain. High 55°, low 50°.
Pressure29.94 inHg
Wind3.7 mph S
Humidity77%
Visibility4.0 mi
Dew point48°
Thu, 1949° / 47°0.73
49 °
San Quentin, Thursday, 19 November
Rain. High 49°, low 47°.
Pressure29.80 inHg
Wind11.5 mph N
Humidity95%
Visibility—
Dew point47°
Fri, 2058° / 44°0
58 °
San Quentin, Friday, 20 November
Mostly clear. High 58°, low 44°.
Pressure29.97 inHg
Wind6.4 mph W
Humidity89%
Visibility—
Dew point48°
Sat, 2160° / 55°0
60 °
San Quentin, Saturday, 21 November
Overcast. High 60°, low 55°.
Pressure30.09 inHg
Wind10.2 mph SE
Humidity76%
Visibility—
Dew point49°
Sun, 2260° / 56°0.28
60 °
San Quentin, Sunday, 22 November
Light rain. High 60°, low 56°.
Pressure30.03 inHg
Wind20.6 mph S
Humidity82%
Visibility—
Dew point52°
Mon, 2362° / 56°0.05
62 °
San Quentin, Monday, 23 November
Light rain. High 62°, low 56°.
Pressure30.09 inHg
Wind15.8 mph S
Humidity73%
Visibility—
Dew point50°
Tue, 2462° / 60°0.98
62 °
San Quentin, Tuesday, 24 November
Heavy rain. High 62°, low 60°.
Pressure30.03 inHg
Wind25.3 mph S
Humidity79%
Visibility—
Dew point55°
Wed, 2561° / 56°1.3
61 °
San Quentin, Wednesday, 25 November
Heavy rain. High 61°, low 56°.
Pressure29.94 inHg
Wind27.2 mph S
Humidity71%
Visibility—
Dew point51°
Thu, 2663° / 53°0
63 °
San Quentin, Thursday, 26 November
Clear. High 63°, low 53°.
Pressure30.06 inHg
Wind14 mph N
Humidity68%
Visibility—
Dew point45°
Fri, 2764° / 53°0
64 °
San Quentin, Friday, 27 November
Clear. High 64°, low 53°.
Pressure30.03 inHg
Wind12.9 mph N
Humidity56%
Visibility—
Dew point40°
Sat, 2860° / 52°0
60 °
San Quentin, Saturday, 28 November
Partly cloudy. High 60°, low 52°.
Pressure30.09 inHg
Wind14.9 mph NE
Humidity64%
Visibility—
Dew point42°
Sun, 2961° / 54°0
61 °
San Quentin, Sunday, 29 November
Overcast. High 61°, low 54°.
Pressure30.15 inHg
Wind8.3 mph NE
Humidity60%
Visibility—
Dew point41°
Mon, 3060° / 53°0
60 °
San Quentin, Monday, 30 November
Clear. High 60°, low 53°.
Pressure30.12 inHg
Wind8.3 mph NE
Humidity70%
Visibility—
Dew point45°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Mon, 1455° / 44°0.17
55 °
San Quentin, Monday, 14 December
Climate normal for this date — 60-year average.
Average high55°
Average low44°
Average precipitation0.17 in
Chance of precipitation27%
Record high63° (1962)
Record low30° (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.