S
M
T
W
T
F
S
30
83°
54°
31
79°
66°
1
88°
68°
2
79°
70°
3
85°
68°
4
85°
60°
5
79°
54°
6
78°
57°
7
78°
57°
8
77°
58°
9
75°
59°
10
78°
57°
11
76°
56°
12
75°
56°
13
76°
55°
14
75°
54°
15
75°
58°
16
73°
58°
17
75°
50°
18
70°
48°
19
70°
50°
20
73°
55°
21
78°
57°
22
78°
57°
23
79°
56°
24
78°
55°
25
76°
53°
26
75°
53°
27
76°
54°
28
76°
54°
29
75°
51°
30
69°
46°
1
67°
46°
2
70°
52°
3
73°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Selinsgrove
Selinsgrove's September 2026 forecast shows daily high temperatures ranging from 67° to 88°, with overnight lows between 46° and 70°. The average high for September is 76° 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 Selinsgrove. See also: October | November | December.
