S
M
T
W
T
F
S
26
92°
63°
27
92°
60°
28
91°
61°
29
90°
60°
30
91°
59°
31
86°
61°
1
92°
59°
2
83°
59°
3
84°
57°
4
86°
56°
5
82°
55°
6
84°
54°
7
84°
55°
8
85°
56°
9
83°
55°
10
84°
56°
11
81°
53°
12
82°
53°
13
Hist. Avg.
87°
54°
14
Hist. Avg.
87°
54°
15
Hist. Avg.
87°
53°
16
Hist. Avg.
87°
53°
17
Hist. Avg.
87°
53°
18
Hist. Avg.
87°
53°
19
Hist. Avg.
86°
52°
20
Hist. Avg.
86°
52°
21
Hist. Avg.
86°
52°
22
Hist. Avg.
86°
52°
23
Hist. Avg.
86°
52°
24
Hist. Avg.
86°
51°
25
Hist. Avg.
86°
51°
26
Hist. Avg.
85°
51°
27
Hist. Avg.
85°
50°
28
Hist. Avg.
85°
50°
29
Hist. Avg.
85°
50°
30
Hist. Avg.
84°
50°
31
Hist. Avg.
84°
49°
1
Hist. Avg.
84°
49°
2
Hist. Avg.
84°
49°
3
Hist. Avg.
84°
48°
4
Hist. Avg.
83°
48°
5
Hist. Avg.
83°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Fort Collins
Fort Collins's August 2026 forecast shows daily high temperatures ranging from 81° to 92°, with overnight lows between 53° and 63°. The average high for August is 86° with an average low of 57°. 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.
