S
M
T
W
T
F
S
30
80°
58°
31
75°
66°
1
92°
68°
2
78°
69°
3
88°
68°
4
83°
71°
5
80°
62°
6
79°
52°
7
80°
53°
8
83°
59°
9
88°
68°
10
82°
58°
11
74°
51°
12
75°
57°
13
78°
62°
14
77°
55°
15
80°
60°
16
79°
54°
17
73°
55°
18
74°
52°
19
77°
50°
20
78°
55°
21
77°
57°
22
70°
56°
23
72°
56°
24
72°
55°
25
73°
55°
26
76°
54°
27
73°
49°
28
74°
54°
29
75°
55°
30
76°
55°
1
75°
54°
2
73°
53°
3
73°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Muncy
Muncy's September 2026 forecast shows daily high temperatures ranging from 70° to 88°, with overnight lows between 49° and 68°. The average high for September is 76° with an average low of 55°. 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 Muncy. See also: October | November | December.
