S
M
T
W
T
F
S
30
94°
73°
31
92°
75°
1
89°
76°
2
89°
76°
3
89°
76°
4
92°
78°
5
91°
78°
6
94°
75°
7
90°
75°
8
91°
75°
9
92°
76°
10
93°
74°
11
91°
74°
12
93°
75°
13
91°
74°
14
94°
77°
15
92°
77°
16
91°
76°
17
91°
75°
18
92°
73°
19
88°
73°
20
89°
72°
21
92°
73°
22
91°
74°
23
92°
75°
24
85°
72°
25
81°
66°
26
84°
63°
27
86°
58°
28
89°
65°
29
89°
68°
30
89°
71°
1
88°
73°
2
90°
70°
3
89°
69°
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 86° to 90°, with overnight lows between 58° and 73°. The average high for September is 89° with an average low of 68°. 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.
