S
M
T
W
T
F
S
30
77°
58°
31
82°
61°
1
84°
54°
2
81°
53°
3
76°
52°
4
77°
54°
5
77°
61°
6
81°
59°
7
82°
55°
8
75°
59°
9
74°
60°
10
76°
59°
11
76°
57°
12
78°
57°
13
75°
56°
14
72°
51°
15
72°
50°
16
71°
49°
17
71°
51°
18
72°
55°
19
74°
56°
20
75°
57°
21
76°
53°
22
70°
47°
23
69°
53°
24
68°
55°
25
74°
48°
26
72°
45°
27
Hist. Avg.
69°
45°
28
Hist. Avg.
69°
45°
29
Hist. Avg.
68°
44°
30
Hist. Avg.
68°
44°
1
Hist. Avg.
68°
43°
2
Hist. Avg.
67°
43°
3
Hist. Avg.
67°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Flint
Flint's September 2026 forecast shows daily high temperatures ranging from 68° to 84°, with overnight lows between 45° and 61°. The average high for September is 75° with an average low of 54°. 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 Flint. See also: October | November | December.
