S
M
T
W
T
F
S
30
88°
67°
31
89°
65°
1
87°
68°
2
87°
65°
3
91°
68°
4
91°
68°
5
90°
69°
6
92°
66°
7
88°
68°
8
89°
68°
9
90°
67°
10
86°
67°
11
88°
66°
12
89°
67°
13
89°
66°
14
88°
66°
15
88°
65°
16
89°
66°
17
88°
65°
18
87°
64°
19
86°
64°
20
87°
63°
21
85°
63°
22
85°
64°
23
86°
63°
24
85°
62°
25
86°
60°
26
86°
59°
27
85°
61°
28
85°
62°
29
84°
60°
30
84°
60°
1
82°
58°
2
84°
60°
3
78°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Highlands
Highlands's September 2026 forecast shows daily high temperatures ranging from 78° to 92°, with overnight lows between 57° and 69°. The average high for September is 87° with an average low of 64°. 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 Highlands. See also: October | November | December.
