S
M
T
W
T
F
S
26
41°
22°
27
44°
28°
28
56°
31°
29
58°
32°
30
60°
38°
1
71°
44°
2
64°
40°
3
63°
44°
4
55°
37°
5
58°
35°
6
62°
36°
7
62°
40°
8
65°
42°
9
63°
43°
10
73°
46°
11
60°
44°
12
60°
40°
13
61°
42°
14
66°
47°
15
72°
49°
16
73°
50°
17
74°
49°
18
63°
46°
19
70°
50°
20
73°
51°
21
74°
52°
22
73°
51°
23
65°
51°
24
64°
48°
25
74°
52°
26
76°
54°
27
77°
54°
28
78°
53°
29
67°
53°
30
77°
55°
31
78°
56°
1
77°
54°
2
73°
51°
3
69°
54°
4
68°
55°
5
74°
56°
6
70°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Glasgow
Glasgow's May 2026 forecast shows daily high temperatures ranging from 44° to 78°, with overnight lows between 28° and 56°. The average high for May is 67° with an average low of 47°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Glasgow. See also: June | July | August.
