S
M
T
W
T
F
S
30
71°
46°
31
72°
47°
1
72°
47°
2
74°
46°
3
75°
47°
4
74°
47°
5
74°
46°
6
73°
47°
7
73°
46°
8
72°
45°
9
72°
46°
10
68°
44°
11
72°
43°
12
68°
43°
13
71°
42°
14
72°
43°
15
70°
38°
16
61°
39°
17
67°
42°
18
69°
44°
19
70°
45°
20
71°
44°
21
69°
41°
22
63°
45°
23
69°
43°
24
65°
40°
25
57°
34°
26
54°
37°
27
58°
40°
28
63°
40°
29
64°
37°
30
63°
28°
1
55°
29°
2
49°
38°
3
57°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Swiftcurrent
Swiftcurrent's September 2026 forecast shows daily high temperatures ranging from 49° to 75°, with overnight lows between 28° and 47°. The average high for September is 67° with an average low of 42°. 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 Swiftcurrent. See also: October | November | December.
