S
M
T
W
T
F
S
30
81°
57°
31
75°
54°
1
74°
55°
2
73°
54°
3
73°
54°
4
74°
55°
5
72°
54°
6
72°
54°
7
71°
56°
8
71°
59°
9
70°
54°
10
71°
53°
11
70°
53°
12
69°
52°
13
71°
55°
14
70°
54°
15
68°
57°
16
70°
50°
17
69°
51°
18
68°
51°
19
68°
57°
20
72°
58°
21
Hist. Avg.
70°
52°
22
Hist. Avg.
70°
52°
23
Hist. Avg.
70°
51°
24
Hist. Avg.
69°
51°
25
Hist. Avg.
69°
51°
26
Hist. Avg.
68°
50°
27
Hist. Avg.
68°
50°
28
Hist. Avg.
68°
50°
29
Hist. Avg.
67°
49°
30
Hist. Avg.
67°
49°
1
Hist. Avg.
66°
48°
2
Hist. Avg.
66°
48°
3
Hist. Avg.
66°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in State College
State College's September 2026 forecast shows daily high temperatures ranging from 68° to 81°, with overnight lows between 50° and 59°. The average high for September is 71° with an average low of 54°. 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 State College. See also: October | November | December.
