Monthly outlook for San Francisco, CA: average high 65.2°, average low 55.6°. That is 1.1° below the climate normal for October. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 2 days and 0.6 inches. The warmest day looks like 27 October (74.2°), the coolest 13 October (46.2°).
65.2°/55.6°
Average high / low
−1.1°
Below normal
0 / 2
Wet days / normal
0.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
12 October – 21 October
63.6°
67.9°
-2.4°
22 October – 31 October
68.1°
65.2°
+1.6°
1 November – 10 November
at normal
62.8°
—
October records over 66 years
98.6°1 October 2024All-time high
39.7°29 October 1971All-time low
Tue, 1367° / 46°0
67 °
San Francisco, Tuesday, 13 October
Mostly clear. High 67°, low 46°.
Pressure30.09 inHg
Wind1.9 mph N
Humidity64%
Visibility0.8 mi
Dew point50°
Wed, 1463° / 57°0
63 °
San Francisco, Wednesday, 14 October
Clear. High 63°, low 57°.
Pressure30.12 inHg
Wind4.4 mph SW
Humidity82%
Visibility1.4 mi
Dew point56°
Thu, 1571° / 57°0
71 °
San Francisco, Thursday, 15 October
Mostly clear. High 71°, low 57°.
Pressure30.09 inHg
Wind4.1 mph NE
Humidity49%
Visibility3.7 mi
Dew point50°
Fri, 1673° / 61°0
73 °
San Francisco, Friday, 16 October
Clear. High 73°, low 61°.
Pressure30.03 inHg
Wind11 mph W
Humidity34%
Visibility—
Dew point41°
Sat, 1763° / 58°0
63 °
San Francisco, Saturday, 17 October
Overcast. High 63°, low 58°.
Pressure30.00 inHg
Wind10.2 mph W
Humidity89%
Visibility—
Dew point58°
Sun, 1859° / 55°0
59 °
San Francisco, Sunday, 18 October
Clear. High 59°, low 55°.
Pressure30.00 inHg
Wind16 mph W
Humidity77%
Visibility—
Dew point52°
Mon, 1959° / 55°0.01
59 °
San Francisco, Monday, 19 October
Light rain. High 59°, low 55°.
Pressure30.06 inHg
Wind17.6 mph W
Humidity75%
Visibility—
Dew point49°
Tue, 2057° / 54°0
57 °
San Francisco, Tuesday, 20 October
Clear. High 57°, low 54°.
Pressure30.00 inHg
Wind21 mph NW
Humidity62%
Visibility—
Dew point44°
Wed, 2159° / 51°0
59 °
San Francisco, Wednesday, 21 October
Clear. High 59°, low 51°.
Pressure29.91 inHg
Wind14.6 mph W
Humidity53%
Visibility—
Dew point38°
Thu, 2262° / 55°0
62 °
San Francisco, Thursday, 22 October
Clear. High 62°, low 55°.
Pressure30.03 inHg
Wind13.6 mph W
Humidity37%
Visibility—
Dew point33°
Fri, 2361° / 53°0
61 °
San Francisco, Friday, 23 October
Clear. High 61°, low 53°.
Pressure30.18 inHg
Wind8.8 mph W
Humidity65%
Visibility—
Dew point45°
Sat, 2466° / 56°0
66 °
San Francisco, Saturday, 24 October
Clear. High 66°, low 56°.
Pressure30.24 inHg
Wind8.7 mph W
Humidity48%
Visibility—
Dew point41°
Sun, 2571° / 58°0
71 °
San Francisco, Sunday, 25 October
Clear. High 71°, low 58°.
Pressure30.09 inHg
Wind13 mph NE
Humidity44%
Visibility—
Dew point41°
Mon, 2674° / 61°0
74 °
San Francisco, Monday, 26 October
Clear. High 74°, low 61°.
Pressure30.09 inHg
Wind10.7 mph NE
Humidity39%
Visibility—
Dew point40°
Tue, 2774° / 65°0
74 °
San Francisco, Tuesday, 27 October
Overcast. High 74°, low 65°.
Pressure30.03 inHg
Wind8 mph NE
Humidity37%
Visibility—
Dew point40°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 2864° / 50°0.06
64 °
San Francisco, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high64°
Average low50°
Average precipitation0.06 in
Chance of precipitation17%
Record high81° (2003)
Record low42° (1971)
Thu, 2964° / 49°0.05
64 °
San Francisco, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high64°
Average low49°
Average precipitation0.05 in
Chance of precipitation18%
Record high77° (1965)
Record low40° (1971)
Fri, 3064° / 49°0.05
64 °
San Francisco, Friday, 30 October
Climate normal for this date — 60-year average.
Average high64°
Average low49°
Average precipitation0.05 in
Chance of precipitation17%
Record high80° (1966)
Record low41° (1971)
Sat, 3165° / 49°0.02
65 °
San Francisco, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high65°
Average low49°
Average precipitation0.02 in
Chance of precipitation15%
Record high80° (1966)
Record low41° (1989)
Sun, 0165° / 49°0.04
65 °
San Francisco, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high65°
Average low49°
Average precipitation0.04 in
Chance of precipitation10%
Record high80° (1966)
Record low40° (2003)
Mon, 0265° / 49°0.02
65 °
San Francisco, Monday, 2 November
Climate normal for this date — 60-year average.
Average high65°
Average low49°
Average precipitation0.02 in
Chance of precipitation13%
Record high79° (1997)
Record low42° (2003)
Tue, 0364° / 49°0.03
64 °
San Francisco, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high64°
Average low49°
Average precipitation0.03 in
Chance of precipitation13%
Record high79° (1976)
Record low40° (1994)
Wed, 0464° / 49°0.03
64 °
San Francisco, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high64°
Average low49°
Average precipitation0.03 in
Chance of precipitation13%
Record high80° (1976)
Record low42° (2011)
Thu, 0562° / 49°0.06
62 °
San Francisco, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high62°
Average low49°
Average precipitation0.06 in
Chance of precipitation17%
Record high76° (1976)
Record low42° (1996)
Fri, 0663° / 50°0.05
63 °
San Francisco, Friday, 6 November
Climate normal for this date — 60-year average.
Average high63°
Average low50°
Average precipitation0.05 in
Chance of precipitation22%
Record high76° (1976)
Record low42° (1996)
Sat, 0762° / 49°0.06
62 °
San Francisco, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high62°
Average low49°
Average precipitation0.06 in
Chance of precipitation27%
Record high78° (1991)
Record low41° (1971)
Sun, 0862° / 48°0.07
62 °
San Francisco, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high62°
Average low48°
Average precipitation0.07 in
Chance of precipitation25%
Record high74° (1976)
Record low42° (1982)
Mon, 0961° / 47°0.07
61 °
San Francisco, Monday, 9 November
Climate normal for this date — 60-year average.
Average high61°
Average low47°
Average precipitation0.07 in
Chance of precipitation22%
Record high73° (2025)
Record low40° (2011)
Tue, 1061° / 48°0.11
61 °
San Francisco, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high61°
Average low48°
Average precipitation0.11 in
Chance of precipitation27%
Record high75° (1990)
Record low39° (2011)
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 Francisco, 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 Francisco, 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.