S
M
T
W
T
F
S
30
101°
76°
31
101°
74°
1
100°
75°
2
101°
75°
3
103°
76°
4
101°
74°
5
97°
76°
6
99°
75°
7
98°
76°
8
100°
76°
9
99°
74°
10
93°
65°
11
91°
68°
12
92°
67°
13
92°
68°
14
91°
68°
15
91°
67°
16
90°
67°
17
89°
66°
18
89°
67°
19
90°
67°
20
90°
66°
21
89°
67°
22
90°
66°
23
89°
66°
24
90°
65°
25
89°
65°
26
88°
64°
27
88°
64°
28
83°
63°
29
81°
63°
30
85°
62°
1
86°
63°
2
86°
63°
3
85°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Seminole
Seminole's September 2026 forecast shows daily high temperatures ranging from 81° to 103°, with overnight lows between 62° and 76°. The average high for September is 92° with an average low of 68°. 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 Seminole. See also: October | November | December.