Monthly outlook for San Francisco, CA: average high 63.7°, average low 55.6°. That is 1.2° below the climate normal for October. Precipitation is expected on 2 days (about 0.4 inches), against a normal of 2 days and 0.6 inches. The warmest day looks like 17 October (86.1°), the coolest 18 October (49.3°).
63.7°/55.6°
Average high / low
−1.2°
Below normal
2 / 2
Wet days / normal
0.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
17 October – 26 October
65°
66.7°
-0.9°
27 October – 5 November
61.4°
64.1°
-1.5°
6 November – 15 November
at normal
61.1°
—
October records over 66 years
98.6°1 October 2024All-time high
39.7°29 October 1971All-time low
Sun, 1873° / 49°0
73 °
San Francisco, Sunday, 18 October
Clear. High 73°, low 49°.
Pressure30.03 inHg
Wind14.2 mph W
Humidity81%
Visibility6.2 mi
Dew point55°
Mon, 1960° / 58°0
60 °
San Francisco, Monday, 19 October
Light rain. High 60°, low 58°.
Pressure29.97 inHg
Wind12.8 mph W
Humidity65%
Visibility6.2 mi
Dew point48°
Tue, 2063° / 57°0
63 °
San Francisco, Tuesday, 20 October
Partly cloudy. High 63°, low 57°.
Pressure29.91 inHg
Wind1.8 mph SE
Humidity65%
Visibility6.2 mi
Dew point50°
Wed, 2163° / 58°0.36
63 °
San Francisco, Wednesday, 21 October
Rain. High 63°, low 58°.
Pressure29.88 inHg
Wind12.8 mph NE
Humidity78%
Visibility—
Dew point54°
Thu, 2262° / 57°0
62 °
San Francisco, Thursday, 22 October
Mostly clear. High 62°, low 57°.
Pressure29.97 inHg
Wind10.5 mph W
Humidity83%
Visibility—
Dew point56°
Fri, 2359° / 55°0
59 °
San Francisco, Friday, 23 October
Clear. High 59°, low 55°.
Pressure30.12 inHg
Wind11.5 mph W
Humidity74%
Visibility—
Dew point49°
Sat, 2461° / 55°0
61 °
San Francisco, Saturday, 24 October
Partly cloudy. High 61°, low 55°.
Pressure30.12 inHg
Wind9 mph W
Humidity61%
Visibility—
Dew point46°
Sun, 2561° / 55°0
61 °
San Francisco, Sunday, 25 October
Overcast. High 61°, low 55°.
Pressure30.12 inHg
Wind11.2 mph W
Humidity52%
Visibility—
Dew point41°
Mon, 2661° / 56°0
61 °
San Francisco, Monday, 26 October
Clear. High 61°, low 56°.
Pressure29.91 inHg
Wind8.5 mph W
Humidity72%
Visibility—
Dew point50°
Tue, 2763° / 57°0
63 °
San Francisco, Tuesday, 27 October
Clear. High 63°, low 57°.
Pressure29.83 inHg
Wind9.7 mph W
Humidity53%
Visibility—
Dew point44°
Wed, 2859° / 56°0
59 °
San Francisco, Wednesday, 28 October
Partly cloudy. High 59°, low 56°.
Pressure30.03 inHg
Wind14.2 mph SW
Humidity70%
Visibility—
Dew point49°
Thu, 2958° / 55°0.05
58 °
San Francisco, Thursday, 29 October
Light rain. High 58°, low 55°.
Pressure30.00 inHg
Wind23.6 mph NW
Humidity61%
Visibility—
Dew point43°
Fri, 3059° / 53°0
59 °
San Francisco, Friday, 30 October
Clear. High 59°, low 53°.
Pressure30.00 inHg
Wind17.7 mph NW
Humidity42%
Visibility—
Dew point34°
Sat, 3163° / 54°0
63 °
San Francisco, Saturday, 31 October
Clear. High 63°, low 54°.
Pressure30.09 inHg
Wind9 mph W
Humidity44%
Visibility—
Dew point37°
Sun, 0166° / 57°0
66 °
San Francisco, Sunday, 1 November
Clear. High 66°, low 57°.
Pressure30.15 inHg
Wind7.7 mph NW
Humidity43%
Visibility—
Dew point38°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Wed, 1161° / 48°0.08
61 °
San Francisco, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high61°
Average low48°
Average precipitation0.08 in
Chance of precipitation28%
Record high75° (1990)
Record low36° (2000)
Thu, 1261° / 48°0.07
61 °
San Francisco, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high61°
Average low48°
Average precipitation0.07 in
Chance of precipitation17%
Record high74° (1990)
Record low39° (1985)
Fri, 1360° / 47°0.12
60 °
San Francisco, Friday, 13 November
Climate normal for this date — 60-year average.
Average high60°
Average low47°
Average precipitation0.12 in
Chance of precipitation30%
Record high72° (1995)
Record low33° (1985)
Sat, 1460° / 47°0.06
60 °
San Francisco, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high60°
Average low47°
Average precipitation0.06 in
Chance of precipitation22%
Record high75° (2008)
Record low36° (1994)
Sun, 1560° / 47°0.07
60 °
San Francisco, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high60°
Average low47°
Average precipitation0.07 in
Chance of precipitation22%
Record high74° (2010)
Record low36° (1964)
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.