As of 02:59 PDT

Weather in San Geronimo, CA

51°Current weather

San Geronimo, Sunday, 25 October, 02:59

Clear. Feels like 50°. High 74°, low 47°.

Pressure30.03 inHg
Wind0 mph N
Humidity75%
Visibility6.2 mi
Dew point44°

Monthly outlook for San Geronimo, CA: average high 64.2°, average low 50.2°. That is 0.3° above the climate normal for October. Precipitation is expected on 3 days (about 2.0 inches), against a normal of 3 days and 1.0 inches. The warmest day looks like 25 October (73.7°), the coolest 28 October (43.9°).

64.2°/50.2°
Average high / low
+0.3°
Above normal
3 / 3
Wet days / normal
2.0 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
25 October – 3 November65.2°64.6°+0.4°
4 November – 13 November62.4°61.6°+0.4°
14 November – 23 Novemberat normal59.5°—

October records over 66 years

96.4°1 October 2024All-time high
43.2°29 October 1971All-time low

Climate normals and records are computed from the nearest reference point — Bolinas (7 mi).

Mon, 2670° / 47°0Clear
70 °Clear

San Geronimo, Monday, 26 October

Clear. High 70°, low 47°.

Pressure30.15 inHg
Wind8.4 mph W
Humidity60%
Visibility6.2 mi
Dew point50°
Tue, 2764° / 47°0Clear
64 °Clear

San Geronimo, Tuesday, 27 October

Clear. High 64°, low 47°.

Pressure30.06 inHg
Wind8 mph NW
Humidity47%
Visibility6.2 mi
Dew point42°
Wed, 2869° / 44°0Overcast
69 °Overcast

San Geronimo, Wednesday, 28 October

Overcast. High 69°, low 44°.

Pressure30.00 inHg
Wind1.3 mph NW
Humidity49%
Visibility6.2 mi
Dew point45°
Thu, 2968° / 49°0Overcast
68 °Overcast

San Geronimo, Thursday, 29 October

Overcast. High 68°, low 49°.

Pressure29.91 inHg
Wind5.7 mph W
Humidity68%
Visibility—
Dew point49°
Fri, 3062° / 46°0Overcast
62 °Overcast

San Geronimo, Friday, 30 October

Overcast. High 62°, low 46°.

Pressure29.94 inHg
Wind12.3 mph W
Humidity47%
Visibility—
Dew point38°
Sat, 3159° / 44°0.02Light rain
59 °Light rain

San Geronimo, Saturday, 31 October

Light rain. High 59°, low 44°.

Pressure29.94 inHg
Wind5.1 mph E
Humidity43%
Visibility—
Dew point32°
Sun, 0160° / 49°0.04Light rain
60 °Light rain

San Geronimo, Sunday, 1 November

Light rain. High 60°, low 49°.

Pressure29.77 inHg
Wind14.7 mph W
Humidity70%
Visibility—
Dew point47°
Mon, 0263° / 51°0Overcast
63 °Overcast

San Geronimo, Monday, 2 November

Overcast. High 63°, low 51°.

Pressure30.21 inHg
Wind4.8 mph E
Humidity68%
Visibility—
Dew point48°
Tue, 0362° / 54°0.06Light rain
62 °Light rain

San Geronimo, Tuesday, 3 November

Light rain. High 62°, low 54°.

Pressure30.12 inHg
Wind6.8 mph SW
Humidity73%
Visibility—
Dew point51°
Wed, 0463° / 56°0.01Light rain
63 °Light rain

San Geronimo, Wednesday, 4 November

Light rain. High 63°, low 56°.

Pressure30.03 inHg
Wind9.3 mph SW
Humidity80%
Visibility—
Dew point54°
Thu, 0562° / 57°0.01Light rain
62 °Light rain

San Geronimo, Thursday, 5 November

Light rain. High 62°, low 57°.

Pressure29.97 inHg
Wind17.7 mph S
Humidity85%
Visibility—
Dew point55°
Fri, 0662° / 55°1.74Heavy rain
62 °Heavy rain

San Geronimo, Friday, 6 November

Heavy rain. High 62°, low 55°.

Pressure29.80 inHg
Wind30.6 mph S
Humidity81%
Visibility—
Dew point56°
Sat, 0760° / 52°0.09Light rain
60 °Light rain

San Geronimo, Saturday, 7 November

Light rain. High 60°, low 52°.

Pressure29.91 inHg
Wind9.3 mph SW
Humidity73%
Visibility—
Dew point49°
Sun, 0862° / 52°0Clear
62 °Clear

San Geronimo, Sunday, 8 November

Clear. High 62°, low 52°.

Pressure30.12 inHg
Wind5.3 mph NW
Humidity72%
Visibility—
Dew point50°
Mon, 0965° / 51°0Clear
65 °Clear

San Geronimo, Monday, 9 November

Clear. High 65°, low 51°.

Pressure30.15 inHg
Wind3.4 mph N
Humidity67%
Visibility—
Dew point49°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 1061° / 50°0.16Climate normal
61 °Climate normal

San Geronimo, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high61°
Average low50°
Average precipitation0.16 in
Chance of precipitation32%
Record high74° (2025)
Record low42° (1994)
Wed, 1161° / 50°0.11Climate normal
61 °Climate normal

San Geronimo, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high61°
Average low50°
Average precipitation0.11 in
Chance of precipitation27%
Record high75° (1990)
Record low39° (2000)
Thu, 1261° / 49°0.08Climate normal
61 °Climate normal

San Geronimo, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high61°
Average low49°
Average precipitation0.08 in
Chance of precipitation17%
Record high72° (1990)
Record low37° (1985)
Fri, 1361° / 50°0.17Climate normal
61 °Climate normal

San Geronimo, Friday, 13 November

Climate normal for this date — 60-year average.

Average high61°
Average low50°
Average precipitation0.17 in
Chance of precipitation30%
Record high70° (1974)
Record low38° (1985)
Sat, 1461° / 49°0.05Climate normal
61 °Climate normal

San Geronimo, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high61°
Average low49°
Average precipitation0.05 in
Chance of precipitation27%
Record high77° (2008)
Record low38° (1985)
Sun, 1561° / 50°0.11Climate normal
61 °Climate normal

San Geronimo, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high61°
Average low50°
Average precipitation0.11 in
Chance of precipitation25%
Record high75° (2008)
Record low38° (2000)
Mon, 1660° / 50°0.16Climate normal
60 °Climate normal

San Geronimo, Monday, 16 November

Climate normal for this date — 60-year average.

Average high60°
Average low50°
Average precipitation0.16 in
Chance of precipitation30%
Record high72° (2008)
Record low41° (2000)
Tue, 1760° / 49°0.16Climate normal
60 °Climate normal

San Geronimo, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high60°
Average low49°
Average precipitation0.16 in
Chance of precipitation25%
Record high72° (2008)
Record low41° (1964)
Wed, 1860° / 49°0.08Climate normal
60 °Climate normal

San Geronimo, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high60°
Average low49°
Average precipitation0.08 in
Chance of precipitation20%
Record high72° (2005)
Record low40° (1994)
Thu, 1959° / 48°0.1Climate normal
59 °Climate normal

San Geronimo, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high59°
Average low48°
Average precipitation0.1 in
Chance of precipitation30%
Record high71° (1989)
Record low39° (2024)
Fri, 2059° / 49°0.12Climate normal
59 °Climate normal

San Geronimo, Friday, 20 November

Climate normal for this date — 60-year average.

Average high59°
Average low49°
Average precipitation0.12 in
Chance of precipitation33%
Record high70° (2005)
Record low39° (1977)
Sat, 2158° / 48°0.16Climate normal
58 °Climate normal

San Geronimo, Saturday, 21 November

Climate normal for this date — 60-year average.

Average high58°
Average low48°
Average precipitation0.16 in
Chance of precipitation28%
Record high69° (2005)
Record low40° (1985)
Sun, 2259° / 48°0.14Climate normal
59 °Climate normal

San Geronimo, Sunday, 22 November

Climate normal for this date — 60-year average.

Average high59°
Average low48°
Average precipitation0.14 in
Chance of precipitation30%
Record high68° (2005)
Record low40° (2020)
Mon, 2359° / 47°0.08Climate normal
59 °Climate normal

San Geronimo, Monday, 23 November

Climate normal for this date — 60-year average.

Average high59°
Average low47°
Average precipitation0.08 in
Chance of precipitation22%
Record high71° (2017)
Record low38° (1994)

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 Geronimo, 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 Geronimo, 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.