S
M
T
W
T
F
S
30
78°
41°
31
69°
38°
1
68°
42°
2
73°
35°
3
68°
39°
4
75°
42°
5
76°
40°
6
75°
34°
7
66°
32°
8
64°
30°
9
63°
29°
10
64°
29°
11
64°
30°
12
65°
32°
13
68°
31°
14
67°
37°
15
68°
34°
16
62°
29°
17
62°
27°
18
61°
29°
19
62°
31°
20
68°
34°
21
70°
34°
22
67°
30°
23
65°
37°
24
63°
34°
25
60°
34°
26
60°
36°
27
59°
34°
28
59°
27°
29
58°
29°
30
58°
35°
1
57°
36°
2
60°
25°
3
62°
23°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Frank
Frank's September 2026 forecast shows daily high temperatures ranging from 57° to 78°, with overnight lows between 23° and 42°. The average high for September is 65° with an average low of 33°. 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 Frank. See also: October | November | December.
