S
M
T
W
T
F
S
30
75°
55°
31
72°
55°
1
73°
64°
2
75°
59°
3
76°
54°
4
70°
55°
5
71°
55°
6
73°
53°
7
74°
49°
8
73°
60°
9
73°
57°
10
69°
44°
11
71°
45°
12
76°
58°
13
75°
50°
14
68°
54°
15
69°
50°
16
67°
47°
17
67°
44°
18
62°
43°
19
61°
42°
20
62°
42°
21
59°
42°
22
59°
47°
23
65°
47°
24
68°
46°
25
68°
46°
26
67°
44°
27
63°
43°
28
66°
45°
29
67°
47°
30
69°
47°
1
68°
48°
2
66°
45°
3
65°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Petawawa
Petawawa's September 2026 forecast shows daily high temperatures ranging from 59° to 76°, with overnight lows between 42° and 60°. The average high for September is 67° with an average low of 47°. 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 Petawawa. See also: October | November | December.
