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
72°
56°
20
66°
54°
21
73°
52°
22
78°
52°
23
81°
54°
24
84°
56°
25
84°
55°
26
78°
47°
27
73°
47°
28
70°
46°
29
65°
47°
30
66°
42°
1
71°
46°
2
65°
48°
3
68°
47°
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 65° to 84°, with overnight lows between 42° and 56°. The average high for September is 73° with an average low of 50°. 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.
