S
M
T
W
T
F
S
30
83°
58°
31
79°
69°
1
90°
69°
2
74°
69°
3
87°
68°
4
85°
69°
5
79°
61°
6
78°
58°
7
77°
57°
8
81°
54°
9
87°
69°
10
83°
66°
11
80°
57°
12
79°
68°
13
83°
65°
14
83°
66°
15
87°
69°
16
84°
62°
17
78°
60°
18
79°
62°
19
71°
54°
20
70°
55°
21
71°
54°
22
72°
54°
23
72°
59°
24
73°
58°
25
68°
49°
26
68°
53°
27
76°
57°
28
77°
56°
29
71°
52°
30
74°
57°
1
73°
55°
2
71°
51°
3
72°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Lincoln Park
Lincoln Park's September 2026 forecast shows daily high temperatures ranging from 68° to 87°, with overnight lows between 49° and 69°. The average high for September is 76° 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 Lincoln Park. See also: October | November | December.
