S
M
T
W
T
F
S
30
89°
72°
31
93°
71°
1
94°
72°
2
97°
72°
3
94°
72°
4
93°
73°
5
90°
75°
6
97°
72°
7
87°
71°
8
91°
70°
9
89°
70°
10
86°
72°
11
89°
71°
12
88°
70°
13
88°
69°
14
88°
71°
15
90°
67°
16
90°
68°
17
87°
65°
18
88°
64°
19
85°
65°
20
84°
62°
21
88°
66°
22
87°
65°
23
87°
65°
24
86°
64°
25
86°
65°
26
85°
65°
27
87°
64°
28
86°
65°
29
85°
65°
30
86°
64°
1
85°
64°
2
85°
62°
3
79°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Webster County
Webster County's September 2026 forecast shows daily high temperatures ranging from 79° to 91°, with overnight lows between 60° and 72°. The average high for September is 87° with an average low of 66°. 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 County. See also: October | November | December.
