S
M
T
W
T
F
S
30
78°
65°
31
81°
67°
1
84°
68°
2
84°
68°
3
83°
62°
4
83°
60°
5
77°
60°
6
77°
65°
7
80°
65°
8
81°
66°
9
82°
64°
10
79°
65°
11
82°
64°
12
82°
65°
13
81°
65°
14
81°
64°
15
82°
65°
16
82°
64°
17
81°
64°
18
80°
59°
19
80°
57°
20
76°
55°
21
73°
54°
22
72°
61°
23
74°
58°
24
78°
54°
25
71°
54°
26
71°
55°
27
72°
54°
28
76°
59°
29
75°
58°
30
77°
58°
1
75°
59°
2
74°
55°
3
70°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Swainton
Swainton's September 2026 forecast shows daily high temperatures ranging from 70° to 84°, with overnight lows between 54° and 68°. The average high for September is 78° with an average low of 61°. 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 Swainton. See also: October | November | December.
