S
M
T
W
T
F
S
30
75°
52°
31
77°
53°
1
77°
45°
2
73°
44°
3
68°
46°
4
72°
51°
5
74°
53°
6
75°
46°
7
74°
43°
8
69°
47°
9
68°
51°
10
66°
51°
11
72°
50°
12
70°
48°
13
66°
48°
14
64°
44°
15
65°
41°
16
64°
40°
17
64°
45°
18
65°
41°
19
67°
47°
20
66°
48°
21
69°
45°
22
67°
38°
23
62°
43°
24
61°
46°
25
64°
39°
26
64°
36°
27
Hist. Avg.
68°
42°
28
Hist. Avg.
67°
41°
29
Hist. Avg.
67°
41°
30
Hist. Avg.
66°
40°
1
Hist. Avg.
66°
40°
2
Hist. Avg.
65°
40°
3
Hist. Avg.
65°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Glen
Glen's September 2026 forecast shows daily high temperatures ranging from 61° to 77°, with overnight lows between 36° and 53°. The average high for September is 69° with an average low of 46°. 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 Glen. See also: October | November | December.
