S
M
T
W
T
F
S
30
98°
76°
31
95°
76°
1
88°
77°
2
97°
80°
3
87°
78°
4
92°
78°
5
93°
76°
6
89°
76°
7
98°
76°
8
95°
78°
9
91°
76°
10
90°
76°
11
95°
74°
12
99°
78°
13
95°
75°
14
98°
77°
15
98°
77°
16
96°
75°
17
90°
76°
18
94°
72°
19
95°
72°
20
97°
72°
21
97°
76°
22
99°
75°
23
99°
77°
24
97°
76°
25
93°
70°
26
92°
69°
27
95°
71°
28
95°
74°
29
94°
71°
30
95°
74°
1
90°
76°
2
94°
74°
3
92°
75°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Porter
Porter's September 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for September is ° with an average low of °. 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 Porter. See also: October | November | December.
