S
M
T
W
T
F
S
30
95°
74°
31
94°
74°
1
93°
73°
2
94°
74°
3
95°
74°
4
95°
73°
5
94°
73°
6
94°
72°
7
93°
72°
8
94°
71°
9
94°
72°
10
95°
73°
11
94°
72°
12
94°
71°
13
92°
72°
14
92°
68°
15
93°
69°
16
93°
69°
17
95°
70°
18
90°
67°
19
92°
69°
20
92°
67°
21
91°
68°
22
90°
67°
23
89°
66°
24
87°
64°
25
90°
66°
26
90°
66°
27
89°
65°
28
87°
65°
29
89°
64°
30
89°
65°
1
88°
62°
2
85°
57°
3
81°
56°
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 81° to 95°, with overnight lows between 56° and 74°. The average high for September is 91° with an average low of 69°. 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.
