S
M
T
W
T
F
S
30
77°
58°
31
74°
55°
1
71°
57°
2
72°
56°
3
71°
56°
4
72°
57°
5
70°
56°
6
71°
59°
7
70°
62°
8
74°
58°
9
71°
55°
10
70°
55°
11
70°
56°
12
69°
57°
13
70°
56°
14
69°
55°
15
70°
60°
16
73°
53°
17
72°
54°
18
70°
54°
19
68°
60°
20
72°
58°
21
66°
50°
22
66°
49°
23
Hist. Avg.
70°
54°
24
Hist. Avg.
70°
53°
25
Hist. Avg.
69°
53°
26
Hist. Avg.
69°
53°
27
Hist. Avg.
69°
52°
28
Hist. Avg.
68°
52°
29
Hist. Avg.
68°
52°
30
Hist. Avg.
68°
51°
1
Hist. Avg.
67°
51°
2
Hist. Avg.
67°
51°
3
Hist. Avg.
67°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Highgate
Highgate's September 2026 forecast shows daily high temperatures ranging from 66° to 77°, with overnight lows between 49° and 62°. The average high for September is 71° with an average low of 56°. 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 Highgate. See also: October | November | December.