S
M
T
W
T
F
S
30
89°
71°
31
90°
70°
1
93°
68°
2
93°
72°
3
93°
71°
4
93°
73°
5
92°
71°
6
92°
69°
7
89°
71°
8
90°
70°
9
89°
69°
10
92°
68°
11
94°
69°
12
90°
68°
13
88°
67°
14
89°
66°
15
86°
62°
16
80°
66°
17
80°
65°
18
77°
65°
19
77°
64°
20
79°
65°
21
81°
65°
22
80°
64°
23
83°
64°
24
83°
63°
25
78°
64°
26
81°
63°
27
81°
57°
28
75°
54°
29
74°
53°
30
74°
52°
1
75°
55°
2
75°
60°
3
74°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Highmound
Highmound's September 2026 forecast shows daily high temperatures ranging from 74° to 94°, with overnight lows between 52° and 73°. The average high for September is 84° with an average low of 65°. 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 Highmound. See also: October | November | December.
