S
M
T
W
T
F
S
30
72°
50°
31
73°
50°
1
79°
44°
2
88°
45°
3
82°
58°
4
82°
53°
5
80°
54°
6
78°
60°
7
66°
55°
8
64°
52°
9
78°
46°
10
78°
50°
11
63°
44°
12
60°
36°
13
67°
31°
14
53°
47°
15
60°
45°
16
64°
46°
17
71°
43°
18
76°
46°
19
72°
42°
20
69°
42°
21
73°
48°
22
77°
50°
23
77°
46°
24
80°
52°
25
80°
46°
26
62°
40°
27
60°
42°
28
63°
40°
29
65°
41°
30
65°
42°
1
62°
42°
2
61°
36°
3
65°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Moose Jaw
Moose Jaw's September 2026 forecast shows daily high temperatures ranging from 60° to 80°, with overnight lows between 36° and 52°. The average high for September is 68° with an average low of 44°. 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 Moose Jaw. See also: October | November | December.