S
M
T
W
T
F
S
30
94°
67°
31
94°
69°
1
99°
72°
2
98°
73°
3
98°
74°
4
98°
71°
5
93°
68°
6
91°
64°
7
92°
68°
8
91°
69°
9
93°
70°
10
94°
68°
11
92°
67°
12
88°
64°
13
88°
66°
14
86°
62°
15
83°
59°
16
79°
64°
17
82°
63°
18
77°
63°
19
78°
62°
20
78°
63°
21
81°
63°
22
85°
62°
23
81°
60°
24
78°
61°
25
83°
62°
26
81°
55°
27
75°
52°
28
73°
50°
29
72°
49°
30
74°
50°
1
73°
52°
2
75°
57°
3
76°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Glasgow
Glasgow's September 2026 forecast shows daily high temperatures ranging from 72° to 98°, with overnight lows between 49° and 74°. The average high for September is 84° with an average low of 62°. 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 Glasgow. See also: October | November | December.
