S
M
T
W
T
F
S
27
66°
57°
28
77°
52°
29
81°
54°
30
72°
63°
1
72°
55°
2
68°
48°
3
72°
46°
4
73°
48°
5
73°
43°
6
81°
52°
7
82°
52°
8
79°
46°
9
81°
57°
10
84°
61°
11
86°
57°
12
88°
66°
13
79°
59°
14
64°
59°
15
64°
50°
16
52°
37°
17
59°
32°
18
66°
39°
19
68°
36°
20
72°
41°
21
73°
48°
22
75°
46°
23
77°
48°
24
76°
50°
25
78°
51°
26
73°
53°
27
71°
54°
28
75°
57°
29
74°
56°
30
74°
57°
31
69°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Fairfield
Fairfield's October 2026 forecast shows daily high temperatures ranging from 69° to 78°, with overnight lows between 50° and 57°. The average high for October is 74° with an average low of 54°. 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 Fairfield. See also: November | December | January.
