S
M
T
W
T
F
S
30
94°
75°
31
94°
74°
1
93°
73°
2
92°
74°
3
93°
75°
4
93°
75°
5
92°
74°
6
90°
73°
7
91°
73°
8
91°
72°
9
92°
73°
10
92°
73°
11
91°
72°
12
92°
73°
13
90°
73°
14
90°
71°
15
92°
71°
16
90°
70°
17
91°
72°
18
91°
70°
19
89°
63°
20
84°
63°
21
84°
64°
22
87°
65°
23
88°
67°
24
89°
68°
25
88°
68°
26
88°
67°
27
86°
67°
28
86°
61°
29
83°
60°
30
85°
65°
1
87°
64°
2
87°
63°
3
86°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Huntsville
Huntsville's September 2026 forecast shows daily high temperatures ranging from 83° to 94°, with overnight lows between 60° and 75°. The average high for September is 89° with an average low of 69°. 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 Huntsville. See also: October | November | December.
