S
M
T
W
T
F
S
30
81°
57°
31
78°
58°
1
78°
56°
2
79°
53°
3
77°
57°
4
80°
61°
5
78°
62°
6
81°
59°
7
84°
60°
8
78°
61°
9
77°
56°
10
83°
53°
11
76°
53°
12
79°
56°
13
78°
53°
14
76°
59°
15
82°
60°
16
83°
60°
17
81°
58°
18
81°
49°
19
74°
48°
20
72°
49°
21
72°
53°
22
77°
57°
23
78°
57°
24
79°
56°
25
80°
47°
26
78°
46°
27
69°
46°
28
67°
45°
29
68°
46°
30
69°
44°
1
Hist. Avg.
72°
48°
2
Hist. Avg.
72°
48°
3
Hist. Avg.
71°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Coal Valley
Coal Valley's September 2026 forecast shows daily high temperatures ranging from 67° to 84°, with overnight lows between 44° and 62°. The average high for September is 77° with an average low of 54°. 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 Coal Valley. See also: October | November | December.
