S
M
T
W
T
F
S
27
69°
42°
28
71°
41°
29
66°
40°
30
64°
33°
1
60°
30°
2
60°
30°
3
62°
34°
4
70°
35°
5
70°
36°
6
68°
35°
7
65°
26°
8
57°
28°
9
58°
27°
10
57°
32°
11
66°
36°
12
68°
38°
13
Hist. Avg.
59°
28°
14
Hist. Avg.
58°
28°
15
Hist. Avg.
58°
28°
16
Hist. Avg.
57°
28°
17
Hist. Avg.
57°
27°
18
Hist. Avg.
56°
27°
19
Hist. Avg.
56°
27°
20
Hist. Avg.
56°
27°
21
Hist. Avg.
55°
26°
22
Hist. Avg.
54°
26°
23
Hist. Avg.
54°
26°
24
Hist. Avg.
54°
26°
25
Hist. Avg.
53°
25°
26
Hist. Avg.
53°
25°
27
Hist. Avg.
52°
25°
28
Hist. Avg.
52°
24°
29
Hist. Avg.
51°
24°
30
Hist. Avg.
51°
24°
31
Hist. Avg.
50°
24°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
October Weather in Fairfield
Fairfield's October 2026 forecast shows daily high temperatures ranging from 57° to 71°, with overnight lows between 26° and 42°. The average high for October is 64° with an average low of 34°. 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.