S
M
T
W
T
F
S
30
79°
58°
31
77°
57°
1
77°
58°
2
78°
59°
3
76°
63°
4
77°
58°
5
79°
58°
6
78°
57°
7
76°
56°
8
77°
55°
9
76°
57°
10
75°
57°
11
75°
54°
12
76°
55°
13
75°
54°
14
76°
57°
15
77°
60°
16
79°
60°
17
78°
53°
18
73°
52°
19
73°
53°
20
74°
57°
21
72°
52°
22
72°
55°
23
76°
57°
24
77°
58°
25
78°
57°
26
77°
49°
27
75°
49°
28
69°
50°
29
68°
50°
30
69°
48°
1
69°
49°
2
67°
46°
3
Hist. Avg.
73°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Stewartstown
Stewartstown's September 2026 forecast shows daily high temperatures ranging from 67° to 79°, with overnight lows between 46° and 63°. The average high for September is 75° 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 Stewartstown. See also: October | November | December.
