S
M
T
W
T
F
S
30
78°
54°
31
77°
52°
1
77°
43°
2
68°
42°
3
66°
52°
4
71°
52°
5
73°
42°
6
69°
40°
7
63°
42°
8
63°
47°
9
66°
49°
10
71°
50°
11
66°
48°
12
71°
41°
13
65°
39°
14
59°
35°
15
58°
43°
16
60°
39°
17
67°
41°
18
69°
35°
19
59°
35°
20
57°
44°
21
60°
46°
22
67°
41°
23
65°
44°
24
61°
46°
25
61°
44°
26
68°
37°
27
65°
34°
28
55°
37°
29
56°
39°
30
54°
38°
1
53°
40°
2
58°
44°
3
62°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Peguis 1D
Peguis 1D's September 2026 forecast shows daily high temperatures ranging from 53° to 78°, with overnight lows between 34° and 54°. The average high for September is 65° with an average low of 43°. 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 Peguis 1D. See also: October | November | December.