S
M
T
W
T
F
S
30
69°
48°
31
71°
52°
1
68°
51°
2
68°
48°
3
69°
47°
4
71°
51°
5
67°
47°
6
67°
46°
7
68°
47°
8
71°
47°
9
74°
50°
10
75°
54°
11
74°
52°
12
75°
54°
13
75°
53°
14
71°
45°
15
70°
46°
16
68°
52°
17
73°
53°
18
74°
48°
19
73°
51°
20
72°
50°
21
66°
52°
22
71°
52°
23
72°
50°
24
70°
51°
25
70°
54°
26
71°
53°
27
71°
51°
28
62°
49°
29
61°
48°
30
61°
48°
1
60°
46°
2
59°
42°
3
57°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Staircase Campground
Staircase Campground's September 2026 forecast shows daily high temperatures ranging from 57° to 75°, with overnight lows between 42° and 54°. The average high for September is 69° with an average low of 50°. 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 Staircase Campground. See also: October | November | December.
