S
M
T
W
T
F
S
30
85°
62°
31
86°
71°
1
92°
72°
2
94°
73°
3
92°
67°
4
83°
64°
5
81°
61°
6
78°
60°
7
83°
64°
8
82°
63°
9
80°
62°
10
77°
59°
11
78°
57°
12
74°
56°
13
77°
56°
14
77°
59°
15
76°
60°
16
73°
59°
17
75°
55°
18
69°
49°
19
73°
55°
20
77°
59°
21
78°
59°
22
78°
58°
23
77°
58°
24
77°
56°
25
76°
56°
26
75°
55°
27
76°
56°
28
76°
56°
29
74°
54°
30
73°
51°
1
70°
51°
2
73°
53°
3
74°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Franklin Park
Franklin Park's September 2026 forecast shows daily high temperatures ranging from 69° to 94°, with overnight lows between 49° and 73°. The average high for September is 78° with an average low of 59°. 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 Franklin Park. See also: October | November | December.
