S
M
T
W
T
F
S
30
85°
56°
31
76°
57°
1
77°
63°
2
81°
61°
3
81°
63°
4
82°
58°
5
83°
53°
6
75°
54°
7
75°
53°
8
74°
52°
9
74°
59°
10
77°
52°
11
75°
51°
12
72°
50°
13
73°
51°
14
72°
58°
15
73°
49°
16
72°
49°
17
70°
47°
18
69°
47°
19
69°
48°
20
70°
48°
21
69°
49°
22
69°
49°
23
72°
54°
24
74°
52°
25
75°
55°
26
75°
52°
27
74°
45°
28
67°
52°
29
66°
53°
30
74°
49°
1
70°
51°
2
71°
50°
3
66°
44°
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 66° to 85°, with overnight lows between 44° and 63°. The average high for September is 74° with an average low of 52°. 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.
