S
M
T
W
T
F
S
27
76°
43°
28
68°
47°
29
76°
38°
30
74°
35°
1
64°
35°
2
64°
36°
3
65°
34°
4
63°
36°
5
65°
39°
6
71°
39°
7
72°
40°
8
69°
38°
9
71°
41°
10
69°
43°
11
73°
44°
12
72°
39°
13
62°
38°
14
60°
32°
15
Hist. Avg.
65°
32°
16
Hist. Avg.
65°
32°
17
Hist. Avg.
65°
32°
18
Hist. Avg.
64°
31°
19
Hist. Avg.
64°
31°
20
Hist. Avg.
63°
30°
21
Hist. Avg.
63°
30°
22
Hist. Avg.
63°
30°
23
Hist. Avg.
62°
29°
24
Hist. Avg.
62°
29°
25
Hist. Avg.
61°
29°
26
Hist. Avg.
61°
28°
27
Hist. Avg.
61°
28°
28
Hist. Avg.
60°
28°
29
Hist. Avg.
60°
27°
30
Hist. Avg.
60°
27°
31
Hist. Avg.
59°
26°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
October Weather in Fort Collins
Fort Collins's October 2026 forecast shows daily high temperatures ranging from 60° to 76°, with overnight lows between 32° and 47°. The average high for October is 69° with an average low of 39°. 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 Fort Collins. See also: November | December | January.