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