S
M
T
W
T
F
S
30
75°
48°
31
74°
43°
1
67°
42°
2
66°
45°
3
66°
42°
4
67°
43°
5
66°
42°
6
65°
42°
7
67°
43°
8
72°
45°
9
69°
48°
10
64°
47°
11
64°
48°
12
70°
46°
13
69°
47°
14
70°
44°
15
63°
41°
16
63°
43°
17
61°
42°
18
63°
46°
19
61°
39°
20
67°
47°
21
63°
46°
22
Hist. Avg.
67°
43°
23
Hist. Avg.
67°
43°
24
Hist. Avg.
66°
42°
25
Hist. Avg.
66°
42°
26
Hist. Avg.
65°
42°
27
Hist. Avg.
65°
41°
28
Hist. Avg.
64°
41°
29
Hist. Avg.
64°
41°
30
Hist. Avg.
63°
40°
1
Hist. Avg.
63°
40°
2
Hist. Avg.
62°
40°
3
Hist. Avg.
62°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Stewartstown
Stewartstown's September 2026 forecast shows daily high temperatures ranging from 61° to 75°, with overnight lows between 39° and 48°. The average high for September is 67° with an average low of 44°. 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.
