S
M
T
W
T
F
S
30
81°
56°
31
76°
66°
1
88°
68°
2
73°
68°
3
87°
67°
4
83°
70°
5
80°
62°
6
78°
58°
7
78°
53°
8
82°
59°
9
83°
67°
10
81°
60°
11
76°
51°
12
75°
61°
13
76°
59°
14
81°
56°
15
78°
61°
16
76°
53°
17
72°
55°
18
70°
49°
19
73°
47°
20
69°
50°
21
71°
49°
22
68°
54°
23
70°
54°
24
70°
53°
25
71°
53°
26
75°
51°
27
72°
48°
28
73°
52°
29
74°
53°
30
75°
53°
1
74°
52°
2
73°
51°
3
72°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Walnutport
Walnutport's September 2026 forecast shows daily high temperatures ranging from 68° to 83°, with overnight lows between 47° and 67°. The average high for September is 74° with an average low of 54°. 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 Walnutport. See also: October | November | December.
