S
M
T
W
T
F
S
30
89°
59°
31
82°
60°
1
78°
54°
2
83°
56°
3
83°
59°
4
81°
62°
5
84°
60°
6
86°
59°
7
89°
58°
8
97°
63°
9
101°
72°
10
105°
72°
11
96°
62°
12
92°
65°
13
81°
60°
14
87°
56°
15
90°
54°
16
83°
57°
17
78°
52°
18
85°
56°
19
88°
58°
20
84°
60°
21
83°
57°
22
84°
55°
23
90°
58°
24
98°
60°
25
88°
58°
26
85°
56°
27
81°
56°
28
84°
56°
29
89°
59°
30
88°
58°
1
85°
58°
2
84°
55°
3
87°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Keyes
Keyes's September 2026 forecast shows daily high temperatures ranging from 81° to 98°, with overnight lows between 55° and 60°. The average high for September is 87° with an average low of 57°. 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 Keyes. See also: October | November | December.
