S
M
T
W
T
F
S
26
104°
70°
27
93°
75°
28
95°
65°
29
90°
63°
30
96°
65°
31
92°
64°
1
97°
60°
2
105°
59°
3
101°
62°
4
75°
54°
5
83°
50°
6
101°
55°
7
96°
57°
8
102°
61°
9
99°
62°
10
97°
67°
11
99°
62°
12
95°
62°
13
85°
61°
14
89°
62°
15
84°
61°
16
88°
60°
17
96°
57°
18
90°
62°
19
91°
59°
20
95°
59°
21
102°
60°
22
88°
60°
23
96°
62°
24
95°
61°
25
88°
62°
26
87°
58°
27
94°
56°
28
98°
56°
29
93°
67°
30
83°
63°
31
89°
58°
1
90°
59°
2
93°
55°
3
94°
55°
4
96°
57°
5
97°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Fort Collins
Fort Collins's August 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for August is ° with an average low of °. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Fort Collins. See also: September | October | November.
