S
M
T
W
T
F
S
30
82°
52°
31
74°
53°
1
74°
59°
2
76°
57°
3
79°
60°
4
81°
53°
5
80°
50°
6
72°
50°
7
73°
49°
8
72°
50°
9
72°
57°
10
74°
49°
11
72°
47°
12
70°
47°
13
70°
48°
14
70°
51°
15
71°
46°
16
69°
46°
17
68°
44°
18
67°
44°
19
67°
45°
20
68°
44°
21
68°
46°
22
69°
47°
23
71°
51°
24
72°
48°
25
73°
52°
26
73°
48°
27
72°
42°
28
64°
49°
29
64°
50°
30
71°
44°
1
68°
47°
2
69°
48°
3
65°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Swartz Creek
Swartz Creek's September 2026 forecast shows daily high temperatures ranging from 64° to 82°, with overnight lows between 41° and 60°. The average high for September is 71° 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 Swartz Creek. See also: October | November | December.
