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