S
M
T
W
T
F
S
30
77°
62°
31
85°
65°
1
86°
65°
2
83°
64°
3
77°
65°
4
77°
65°
5
75°
59°
6
76°
56°
7
76°
49°
8
72°
58°
9
83°
57°
10
77°
53°
11
80°
54°
12
79°
52°
13
69°
45°
14
N/A
15
76°
51°
16
69°
58°
17
72°
53°
18
70°
63°
19
75°
59°
20
70°
54°
21
69°
52°
22
68°
51°
23
69°
52°
24
70°
51°
25
71°
54°
26
69°
52°
27
70°
53°
28
68°
46°
29
69°
53°
30
69°
52°
1
71°
50°
2
70°
50°
3
68°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Portage
Portage's September 2026 forecast shows daily high temperatures ranging from 68° to 76°, with overnight lows between 46° and 63°. The average high for September is 70° with an average low of 53°. 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 Portage. See also: October | November | December.
