S
M
T
W
T
F
S
30
72°
54°
31
79°
54°
1
87°
48°
2
91°
62°
3
83°
51°
4
93°
60°
5
86°
54°
6
81°
64°
7
74°
56°
8
67°
56°
9
77°
49°
10
87°
51°
11
65°
47°
12
61°
42°
13
72°
42°
14
60°
49°
15
62°
42°
16
68°
47°
17
71°
44°
18
80°
54°
19
68°
55°
20
63°
55°
21
65°
52°
22
76°
50°
23
76°
55°
24
85°
48°
25
83°
55°
26
69°
46°
27
63°
37°
28
69°
42°
29
74°
42°
30
63°
40°
1
63°
35°
2
74°
43°
3
66°
45°
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 ° to °, with overnight lows between ° and °. The average high for September is ° with an average low of °. 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.