S
M
T
W
T
F
S
26
61°
41°
27
64°
41°
28
59°
46°
29
59°
50°
30
63°
49°
1
73°
48°
2
68°
51°
3
68°
54°
4
61°
52°
5
60°
48°
6
58°
45°
7
55°
41°
8
64°
39°
9
64°
43°
10
55°
39°
11
55°
34°
12
63°
34°
13
57°
44°
14
52°
41°
15
58°
41°
16
60°
49°
17
61°
46°
18
63°
51°
19
63°
53°
20
68°
52°
21
70°
53°
22
70°
54°
23
67°
51°
24
69°
51°
25
68°
52°
26
62°
45°
27
62°
43°
28
63°
42°
29
62°
43°
30
63°
45°
31
64°
47°
1
69°
49°
2
71°
50°
3
72°
51°
4
72°
50°
5
70°
50°
6
71°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Gillingham
Gillingham's May 2026 forecast shows daily high temperatures ranging from 52° to 72°, with overnight lows between 41° and 54°. The average high for May is 65° with an average low of 48°. 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 Gillingham. See also: June | July | August.