S
M
T
W
T
F
S
30
75°
50°
31
73°
51°
1
79°
46°
2
75°
54°
3
67°
53°
4
61°
46°
5
51°
47°
6
59°
49°
7
56°
52°
8
71°
45°
9
76°
52°
10
62°
42°
11
56°
40°
12
52°
42°
13
58°
36°
14
58°
42°
15
49°
43°
16
66°
39°
17
71°
40°
18
71°
41°
19
73°
41°
20
76°
43°
21
80°
46°
22
73°
47°
23
68°
41°
24
64°
48°
25
74°
41°
26
52°
32°
27
56°
37°
28
61°
41°
29
63°
40°
30
60°
37°
1
61°
38°
2
53°
35°
3
52°
37°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Chestermere
Chestermere's September 2026 forecast shows daily high temperatures ranging from 52° to 74°, with overnight lows between 32° and 48°. The average high for September is 60° 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 September weather will actually feel in Chestermere. See also: October | November | December.
