S
M
T
W
T
F
S
30
95°
76°
31
90°
79°
1
86°
80°
2
93°
81°
3
91°
81°
4
91°
79°
5
90°
79°
6
90°
79°
7
90°
79°
8
91°
78°
9
88°
77°
10
91°
76°
11
92°
78°
12
90°
76°
13
93°
75°
14
91°
76°
15
89°
75°
16
90°
74°
17
88°
73°
18
89°
72°
19
90°
72°
20
88°
70°
21
89°
69°
22
90°
72°
23
90°
73°
24
89°
73°
25
88°
72°
26
88°
72°
27
87°
71°
28
89°
72°
29
88°
72°
30
84°
69°
1
81°
63°
2
79°
63°
3
80°
62°
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 79° to 93°, with overnight lows between 62° and 78°. The average high for September is 88° with an average low of 72°. 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.
