S
M
T
W
T
F
S
30
90°
67°
31
85°
61°
1
81°
52°
2
86°
60°
3
93°
69°
4
89°
61°
5
87°
69°
6
80°
69°
7
82°
69°
8
83°
59°
9
78°
53°
10
82°
63°
11
78°
60°
12
79°
59°
13
73°
55°
14
70°
54°
15
76°
57°
16
79°
59°
17
77°
54°
18
70°
49°
19
75°
55°
20
65°
53°
21
72°
55°
22
73°
56°
23
74°
55°
24
73°
53°
25
69°
53°
26
69°
54°
27
72°
54°
28
72°
53°
29
68°
50°
30
58°
50°
1
57°
47°
2
56°
42°
3
56°
43°
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 56° to 87°, with overnight lows between 42° and 69°. The average high for September is 73° with an average low of 55°. 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.
