S
M
T
W
T
F
S
30
71°
49°
31
70°
48°
1
71°
49°
2
73°
52°
3
73°
52°
4
71°
48°
5
70°
47°
6
68°
47°
7
70°
50°
8
72°
48°
9
73°
52°
10
72°
52°
11
73°
51°
12
72°
48°
13
69°
45°
14
67°
49°
15
66°
50°
16
67°
51°
17
66°
51°
18
70°
50°
19
69°
51°
20
69°
51°
21
70°
47°
22
69°
45°
23
64°
44°
24
63°
44°
25
65°
47°
26
65°
46°
27
66°
45°
28
62°
50°
29
66°
49°
30
65°
49°
1
66°
48°
2
67°
48°
3
61°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Gillingham
Gillingham's September 2026 forecast shows daily high temperatures ranging from 61° to 73°, with overnight lows between 41° and 52°. The average high for September is 68° 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 September weather will actually feel in Gillingham. See also: October | November | December.
