S
M
T
W
T
F
S
30
86°
56°
31
79°
56°
1
79°
55°
2
78°
56°
3
79°
61°
4
78°
55°
5
82°
55°
6
78°
54°
7
77°
53°
8
78°
54°
9
79°
55°
10
80°
58°
11
80°
58°
12
75°
58°
13
75°
58°
14
80°
58°
15
Hist. Avg.
75°
53°
16
Hist. Avg.
75°
53°
17
Hist. Avg.
74°
52°
18
Hist. Avg.
74°
52°
19
Hist. Avg.
74°
52°
20
Hist. Avg.
73°
51°
21
Hist. Avg.
73°
51°
22
Hist. Avg.
73°
50°
23
Hist. Avg.
72°
50°
24
Hist. Avg.
72°
50°
25
Hist. Avg.
71°
49°
26
Hist. Avg.
71°
49°
27
Hist. Avg.
70°
48°
28
Hist. Avg.
70°
48°
29
Hist. Avg.
70°
47°
30
Hist. Avg.
69°
47°
1
Hist. Avg.
69°
47°
2
Hist. Avg.
69°
46°
3
Hist. Avg.
68°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Macungie
Macungie's September 2026 forecast shows daily high temperatures ranging from 75° to 86°, with overnight lows between 53° and 61°. The average high for September is 79° with an average low of 56°. 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 Macungie. See also: October | November | December.
