S
M
T
W
T
F
S
27
73°
54°
28
74°
56°
29
73°
55°
30
71°
52°
1
68°
56°
2
73°
57°
3
66°
56°
4
66°
56°
5
73°
57°
6
73°
56°
7
72°
55°
8
69°
54°
9
70°
45°
10
60°
43°
11
60°
42°
12
61°
45°
13
62°
49°
14
68°
51°
15
70°
52°
16
70°
52°
17
69°
48°
18
68°
43°
19
57°
40°
20
58°
41°
21
61°
47°
22
64°
49°
23
67°
49°
24
65°
48°
25
62°
48°
26
60°
47°
27
62°
48°
28
64°
46°
29
60°
42°
30
55°
34°
31
51°
33°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Fairfax
Fairfax's October 2026 forecast shows daily high temperatures ranging from 51° to 74°, with overnight lows between 33° and 57°. The average high for October is 66° with an average low of 49°. 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 Fairfax. See also: November | December | January.
