S
M
T
W
T
F
S
27
95°
68°
28
94°
68°
29
87°
71°
30
90°
68°
1
84°
63°
2
73°
62°
3
77°
61°
4
82°
58°
5
82°
65°
6
86°
58°
7
88°
60°
8
89°
59°
9
87°
57°
10
88°
64°
11
89°
66°
12
90°
72°
13
90°
72°
14
83°
69°
15
74°
52°
16
56°
44°
17
57°
50°
18
68°
51°
19
75°
58°
20
76°
59°
21
79°
60°
22
75°
54°
23
75°
55°
24
73°
53°
25
74°
49°
26
70°
47°
27
71°
50°
28
71°
49°
29
72°
52°
30
72°
53°
31
69°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Forsan
Forsan's October 2026 forecast shows daily high temperatures ranging from 56° to 90°, with overnight lows between 44° and 72°. The average high for October is 74° with an average low of 55°. 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 Forsan. See also: November | December | January.