S
M
T
W
T
F
S
30
93°
72°
31
95°
72°
1
97°
72°
2
98°
73°
3
N/A
4
95°
74°
5
94°
73°
6
94°
72°
7
92°
72°
8
90°
72°
9
91°
71°
10
95°
70°
11
96°
72°
12
92°
69°
13
88°
68°
14
90°
71°
15
89°
67°
16
87°
68°
17
97°
74°
18
80°
67°
19
80°
66°
20
81°
67°
21
84°
67°
22
85°
66°
23
87°
66°
24
85°
67°
25
81°
66°
26
83°
65°
27
84°
59°
28
78°
56°
29
77°
55°
30
78°
55°
1
77°
58°
2
79°
60°
3
76°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Highlands
Highlands's September 2026 forecast shows daily high temperatures ranging from 76° to 97°, with overnight lows between 55° and 74°. The average high for September is 86° with an average low of 66°. 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.