S
M
T
W
T
F
S
30
72°
52°
31
63°
49°
1
63°
51°
2
62°
48°
3
61°
42°
4
60°
47°
5
59°
47°
6
59°
45°
7
60°
36°
8
58°
38°
9
60°
36°
10
59°
35°
11
56°
37°
12
59°
38°
13
56°
38°
14
62°
40°
15
68°
45°
16
69°
47°
17
70°
46°
18
70°
47°
19
71°
48°
20
71°
47°
21
68°
46°
22
68°
45°
23
67°
39°
24
63°
38°
25
63°
39°
26
62°
41°
27
60°
40°
28
63°
38°
29
60°
41°
30
62°
39°
1
63°
40°
2
62°
41°
3
65°
35°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Three Hills
Three Hills's September 2026 forecast shows daily high temperatures ranging from 56° to 72°, with overnight lows between 35° and 52°. The average high for September is 63° with an average low of 42°. 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 Three Hills. See also: October | November | December.
