S
M
T
W
T
F
S
30
63°
45°
31
68°
43°
1
70°
41°
2
72°
37°
3
73°
43°
4
77°
37°
5
77°
39°
6
79°
41°
7
73°
48°
8
77°
34°
9
72°
32°
10
73°
27°
11
73°
32°
12
77°
41°
13
77°
41°
14
72°
41°
15
72°
37°
16
61°
45°
17
61°
46°
18
68°
43°
19
61°
39°
20
57°
34°
21
64°
28°
22
68°
30°
23
63°
41°
24
59°
42°
25
59°
44°
26
66°
43°
27
65°
44°
28
58°
38°
29
50°
34°
30
56°
35°
1
58°
36°
2
61°
37°
3
52°
31°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Longs Peak Campground
Longs Peak Campground's September 2026 forecast shows daily high temperatures ranging from 50° to 66°, with overnight lows between 31° and 44°. The average high for September is 58° with an average low of 38°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Longs Peak Campground. See also: October | November | December.
