S
M
T
W
T
F
S
30
72°
63°
31
81°
55°
1
79°
47°
2
78°
50°
3
79°
52°
4
68°
56°
5
72°
59°
6
82°
52°
7
79°
63°
8
76°
62°
9
71°
49°
10
75°
42°
11
77°
55°
12
63°
44°
13
63°
36°
14
57°
50°
15
63°
37°
16
64°
46°
17
68°
43°
18
65°
52°
19
68°
49°
20
65°
48°
21
66°
45°
22
69°
46°
23
69°
47°
24
68°
49°
25
68°
50°
26
70°
48°
27
67°
48°
28
56°
47°
29
61°
47°
30
61°
46°
1
64°
45°
2
62°
45°
3
62°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Gilbert
Gilbert's September 2026 forecast shows daily high temperatures ranging from 56° to 70°, with overnight lows between 37° and 52°. The average high for September is 65° 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 September weather will actually feel in Gilbert. See also: October | November | December.
