S
M
T
W
T
F
S
30
82°
60°
31
73°
58°
1
73°
57°
2
76°
55°
3
70°
52°
4
79°
54°
5
77°
56°
6
80°
58°
7
70°
63°
8
70°
58°
9
71°
52°
10
81°
56°
11
66°
46°
12
61°
40°
13
61°
45°
14
58°
44°
15
63°
46°
16
64°
44°
17
61°
42°
18
63°
42°
19
64°
42°
20
63°
43°
21
66°
44°
22
65°
40°
23
67°
47°
24
61°
45°
25
70°
46°
26
68°
45°
27
69°
47°
28
70°
44°
29
64°
43°
30
67°
43°
1
57°
38°
2
58°
41°
3
53°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Portage la Prairie
Portage la Prairie's September 2026 forecast shows daily high temperatures ranging from 53° to 81°, with overnight lows between 38° and 56°. The average high for September is 64° with an average low of 44°. 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 la Prairie. See also: October | November | December.
