S
M
T
W
T
F
S
30
68°
49°
31
66°
54°
1
66°
53°
2
63°
53°
3
66°
52°
4
63°
49°
5
61°
49°
6
62°
53°
7
64°
51°
8
62°
50°
9
63°
52°
10
64°
48°
11
64°
48°
12
63°
49°
13
62°
50°
14
60°
50°
15
60°
47°
16
59°
46°
17
58°
45°
18
58°
47°
19
60°
48°
20
59°
47°
21
58°
45°
22
59°
46°
23
60°
49°
24
59°
48°
25
58°
47°
26
60°
47°
27
Hist. Avg.
59°
49°
28
Hist. Avg.
59°
49°
29
Hist. Avg.
59°
49°
30
Hist. Avg.
59°
48°
1
Hist. Avg.
58°
48°
2
Hist. Avg.
58°
48°
3
Hist. Avg.
58°
48°
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 58° to 68°, with overnight lows between 45° and 54°. The average high for September is 62° 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 Flint. See also: October | November | December.
