S
M
T
W
T
F
S
26
71°
54°
27
71°
51°
28
71°
55°
29
70°
56°
30
72°
60°
1
72°
60°
2
N/A
3
76°
53°
4
78°
56°
5
76°
48°
6
73°
46°
7
72°
43°
8
65°
39°
9
67°
40°
10
70°
47°
11
68°
48°
12
68°
49°
13
67°
49°
14
68°
50°
15
68°
45°
16
70°
46°
17
64°
41°
18
65°
40°
19
67°
41°
20
69°
43°
21
69°
42°
22
64°
39°
23
63°
42°
24
64°
45°
25
63°
45°
26
63°
44°
27
65°
45°
28
66°
44°
29
68°
44°
30
68°
43°
31
62°
38°
1
64°
40°
2
65°
41°
3
65°
43°
4
66°
42°
5
67°
43°
6
67°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Gloucester
Gloucester's May 2026 forecast shows daily high temperatures ranging from 62° to 78°, with overnight lows between 38° and 56°. The average high for May is 67° with an average low of 44°. 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 Gloucester. See also: June | July | August.