S
M
T
W
T
F
S
30
76°
55°
31
79°
59°
1
82°
53°
2
74°
54°
3
75°
55°
4
78°
61°
5
80°
61°
6
81°
59°
7
76°
60°
8
74°
59°
9
78°
59°
10
79°
58°
11
73°
59°
12
77°
59°
13
75°
55°
14
72°
50°
15
70°
51°
16
71°
50°
17
71°
56°
18
75°
55°
19
77°
56°
20
78°
57°
21
71°
51°
22
75°
54°
23
69°
55°
24
75°
50°
25
72°
46°
26
67°
46°
27
Hist. Avg.
71°
52°
28
Hist. Avg.
70°
52°
29
Hist. Avg.
70°
51°
30
Hist. Avg.
70°
51°
1
Hist. Avg.
69°
50°
2
Hist. Avg.
69°
50°
3
Hist. Avg.
68°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Glenshaw
Glenshaw's September 2026 forecast shows daily high temperatures ranging from 67° to 82°, with overnight lows between 46° and 61°. The average high for September is 75° with an average low of 55°. 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 Glenshaw. See also: October | November | December.
