S
M
T
W
T
F
S
28
95°
77°
29
95°
77°
30
94°
78°
1
94°
77°
2
94°
79°
3
93°
77°
4
93°
75°
5
89°
77°
6
85°
76°
7
81°
76°
8
88°
76°
9
93°
77°
10
92°
75°
11
93°
74°
12
93°
72°
13
92°
72°
14
93°
75°
15
91°
74°
16
91°
76°
17
90°
75°
18
90°
77°
19
92°
77°
20
92°
75°
21
92°
76°
22
91°
75°
23
92°
73°
24
90°
73°
25
93°
72°
26
93°
76°
27
93°
77°
28
93°
76°
29
90°
74°
30
86°
71°
31
87°
65°
1
88°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in San Francisco
San Francisco's October 2025 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for October is ° with an average low of °. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in San Francisco. See also: November | December | January.