S
M
T
W
T
F
S
27
63°
28°
28
73°
44°
29
69°
50°
30
62°
37°
1
62°
33°
2
77°
41°
3
71°
38°
4
82°
36°
5
85°
52°
6
81°
46°
7
76°
44°
8
80°
43°
9
81°
54°
10
56°
31°
11
32°
30°
12
34°
29°
13
41°
30°
14
48°
34°
15
50°
34°
16
69°
41°
17
73°
46°
18
61°
35°
19
74°
32°
20
58°
33°
21
73°
34°
22
74°
38°
23
58°
25°
24
41°
21°
25
36°
20°
26
40°
21°
27
52°
33°
28
53°
29°
29
33°
29°
30
37°
31°
31
49°
34°
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 37° to 49°, with overnight lows between 31° and 34°. The average high for October is 43° with an average low of 33°. 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.
