S
M
T
W
T
F
S
30
71°
42°
31
82°
37°
1
88°
45°
2
66°
46°
3
66°
45°
4
68°
49°
5
75°
49°
6
69°
54°
7
60°
47°
8
68°
41°
9
77°
38°
10
84°
41°
11
71°
49°
12
72°
49°
13
67°
47°
14
55°
44°
15
64°
39°
16
71°
41°
17
76°
43°
18
77°
46°
19
70°
42°
20
76°
43°
21
78°
46°
22
78°
45°
23
77°
44°
24
74°
45°
25
72°
40°
26
70°
39°
27
71°
43°
28
66°
39°
29
69°
40°
30
69°
43°
1
64°
39°
2
66°
36°
3
63°
36°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Stevensville
Stevensville's September 2026 forecast shows daily high temperatures ranging from 63° to 78°, with overnight lows between 36° and 46°. The average high for September is 71° with an average low of 41°. 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 Stevensville. See also: October | November | December.
