S
M
T
W
T
F
S
30
90°
66°
31
86°
69°
1
97°
73°
2
86°
74°
3
97°
72°
4
92°
68°
5
83°
63°
6
81°
62°
7
83°
61°
8
82°
63°
9
86°
67°
10
92°
64°
11
85°
63°
12
82°
66°
13
82°
64°
14
84°
61°
15
80°
60°
16
75°
64°
17
75°
59°
18
74°
56°
19
77°
57°
20
81°
61°
21
78°
62°
22
79°
62°
23
77°
61°
24
77°
59°
25
76°
60°
26
79°
61°
27
79°
60°
28
75°
55°
29
70°
52°
30
72°
56°
1
71°
57°
2
71°
55°
3
67°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in College Park
College Park's September 2026 forecast shows daily high temperatures ranging from 67° to 97°, with overnight lows between 52° and 74°. The average high for September is 80° with an average low of 61°. 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 College Park. See also: October | November | December.