S
M
T
W
T
F
S
30
64°
48°
31
73°
50°
1
80°
45°
2
74°
53°
3
65°
51°
4
61°
43°
5
56°
48°
6
59°
49°
7
57°
52°
8
69°
45°
9
75°
48°
10
61°
43°
11
53°
42°
12
53°
39°
13
60°
34°
14
56°
45°
15
52°
41°
16
67°
36°
17
73°
38°
18
73°
37°
19
73°
39°
20
77°
42°
21
81°
43°
22
67°
39°
23
67°
38°
24
66°
39°
25
74°
40°
26
50°
33°
27
58°
31°
28
59°
37°
29
64°
40°
30
53°
36°
1
50°
32°
2
59°
33°
3
55°
30°
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 50° to 74°, with overnight lows between 30° and 40°. The average high for September is 58° with an average low of 35°. 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.
