S
M
T
W
T
F
S
30
90°
66°
31
91°
68°
1
95°
69°
2
96°
70°
3
95°
72°
4
91°
69°
5
84°
64°
6
84°
63°
7
82°
60°
8
81°
59°
9
84°
61°
10
85°
61°
11
79°
57°
12
81°
54°
13
80°
54°
14
79°
55°
15
80°
60°
16
74°
60°
17
74°
59°
18
77°
55°
19
80°
58°
20
81°
58°
21
81°
56°
22
80°
56°
23
81°
57°
24
81°
58°
25
80°
56°
26
79°
56°
27
78°
57°
28
76°
56°
29
79°
55°
30
78°
54°
1
77°
52°
2
77°
51°
3
76°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Seth
Seth's September 2026 forecast shows daily high temperatures ranging from 74° to 96°, with overnight lows between 51° and 72°. The average high for September is 81° with an average low of 59°. 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 Seth. See also: October | November | December.
