S
M
T
W
T
F
S
30
82°
67°
31
91°
70°
1
97°
74°
2
95°
71°
3
92°
73°
4
92°
73°
5
84°
72°
6
79°
66°
7
82°
60°
8
85°
60°
9
80°
66°
10
80°
54°
11
79°
61°
12
83°
64°
13
84°
68°
14
88°
68°
15
80°
60°
16
72°
58°
17
79°
57°
18
74°
56°
19
68°
49°
20
69°
54°
21
71°
53°
22
74°
52°
23
71°
57°
24
77°
57°
25
73°
57°
26
77°
56°
27
77°
57°
28
76°
57°
29
76°
56°
30
75°
54°
1
73°
49°
2
68°
55°
3
73°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in University Park
University Park's September 2026 forecast shows daily high temperatures ranging from 68° to 88°, with overnight lows between 49° and 68°. The average high for September is 76° with an average low of 57°. 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 University Park. See also: October | November | December.