S
M
T
W
T
F
S
30
77°
60°
31
75°
54°
1
73°
50°
2
76°
55°
3
74°
57°
4
82°
64°
5
82°
58°
6
72°
51°
7
67°
55°
8
69°
52°
9
68°
53°
10
66°
47°
11
67°
48°
12
64°
43°
13
65°
48°
14
66°
43°
15
70°
49°
16
70°
50°
17
69°
50°
18
69°
48°
19
68°
49°
20
70°
49°
21
69°
47°
22
68°
47°
23
68°
49°
24
70°
49°
25
69°
47°
26
66°
46°
27
68°
47°
28
67°
47°
29
66°
46°
30
66°
46°
1
65°
45°
2
64°
44°
3
63°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Belcourt
Belcourt's September 2026 forecast shows daily high temperatures ranging from 63° to 82°, with overnight lows between 43° and 64°. The average high for September is 69° with an average low of 49°. 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 Belcourt. See also: October | November | December.
