S
M
T
W
T
F
S
30
78°
57°
31
83°
61°
1
84°
61°
2
84°
58°
3
82°
57°
4
82°
61°
5
80°
59°
6
77°
59°
7
76°
58°
8
75°
58°
9
77°
53°
10
76°
52°
11
75°
59°
12
80°
56°
13
80°
58°
14
75°
59°
15
79°
58°
16
71°
51°
17
72°
57°
18
Hist. Avg.
76°
53°
19
Hist. Avg.
76°
53°
20
Hist. Avg.
75°
52°
21
Hist. Avg.
75°
52°
22
Hist. Avg.
75°
52°
23
Hist. Avg.
74°
51°
24
Hist. Avg.
74°
51°
25
Hist. Avg.
73°
50°
26
Hist. Avg.
73°
50°
27
Hist. Avg.
73°
50°
28
Hist. Avg.
72°
49°
29
Hist. Avg.
72°
49°
30
Hist. Avg.
71°
49°
1
Hist. Avg.
71°
48°
2
Hist. Avg.
70°
48°
3
Hist. Avg.
70°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Mifflintown
Mifflintown's September 2026 forecast shows daily high temperatures ranging from 71° to 84°, with overnight lows between 51° and 61°. The average high for September is 78° with an average low of 57°. 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 Mifflintown. See also: October | November | December.
