S
M
T
W
T
F
S
30
80°
63°
31
81°
67°
1
87°
69°
2
86°
68°
3
86°
68°
4
82°
60°
5
77°
54°
6
75°
58°
7
76°
56°
8
71°
55°
9
72°
56°
10
75°
55°
11
73°
56°
12
71°
55°
13
72°
53°
14
71°
54°
15
72°
58°
16
71°
57°
17
72°
51°
18
67°
48°
19
67°
49°
20
72°
56°
21
75°
57°
22
75°
57°
23
74°
56°
24
75°
54°
25
73°
53°
26
72°
53°
27
73°
54°
28
73°
54°
29
72°
51°
30
67°
47°
1
65°
46°
2
67°
51°
3
71°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Boalsburg
Boalsburg's September 2026 forecast shows daily high temperatures ranging from 65° to 87°, with overnight lows between 46° and 69°. The average high for September is 74° 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 Boalsburg. See also: October | November | December.
