S
M
T
W
T
F
S
30
91°
73°
31
90°
73°
1
89°
72°
2
90°
73°
3
91°
72°
4
87°
72°
5
87°
71°
6
88°
70°
7
87°
68°
8
87°
69°
9
88°
72°
10
86°
72°
11
86°
71°
12
87°
72°
13
87°
71°
14
90°
68°
15
90°
70°
16
91°
70°
17
89°
69°
18
90°
68°
19
89°
67°
20
88°
67°
21
87°
68°
22
87°
66°
23
88°
66°
24
87°
67°
25
89°
67°
26
86°
68°
27
86°
66°
28
87°
66°
29
85°
67°
30
85°
67°
1
86°
66°
2
85°
65°
3
85°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Webster
Webster's September 2026 forecast shows daily high temperatures ranging from 85° to 91°, with overnight lows between 65° and 73°. The average high for September is 88° 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 Webster. See also: October | November | December.
