S
M
T
W
T
F
S
26
65°
48°
27
79°
41°
28
77°
54°
29
69°
49°
30
58°
38°
1
58°
33°
2
56°
30°
3
63°
28°
4
74°
48°
5
74°
59°
6
62°
40°
7
60°
38°
8
65°
51°
9
71°
48°
10
72°
46°
11
57°
35°
12
60°
49°
13
68°
52°
14
71°
51°
15
72°
47°
16
69°
48°
17
68°
46°
18
69°
47°
19
73°
48°
20
67°
45°
21
66°
43°
22
67°
47°
23
68°
49°
24
68°
47°
25
69°
47°
26
69°
48°
27
70°
46°
28
70°
47°
29
75°
50°
30
76°
54°
31
77°
56°
1
75°
55°
2
75°
51°
3
79°
56°
4
80°
57°
5
79°
58°
6
80°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Glouster
Glouster's May 2026 forecast shows daily high temperatures ranging from 57° to 80°, with overnight lows between 35° and 58°. The average high for May is 70° with an average low of 49°. 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 Glouster. See also: June | July | August.