S
M
T
W
T
F
S
27
80°
56°
28
85°
53°
29
98°
50°
30
94°
49°
1
95°
53°
2
95°
56°
3
100°
52°
4
99°
58°
5
102°
57°
6
101°
58°
7
101°
57°
8
100°
58°
9
80°
59°
10
74°
53°
11
76°
44°
12
75°
48°
13
79°
41°
14
83°
39°
15
91°
46°
16
90°
43°
17
90°
44°
18
82°
47°
19
71°
54°
20
73°
45°
21
70°
48°
22
71°
53°
23
74°
54°
24
75°
45°
25
73°
50°
26
71°
44°
27
70°
46°
28
70°
48°
29
68°
49°
30
66°
48°
31
75°
49°
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 66° to 75°, with overnight lows between 44° and 50°. The average high for October is 71° with an average low of 47°. 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.
