S
M
T
W
T
F
S
27
62°
56°
28
67°
58°
29
71°
56°
30
75°
57°
1
81°
62°
2
87°
56°
3
73°
51°
4
62°
55°
5
70°
42°
6
65°
40°
7
69°
43°
8
73°
44°
9
75°
44°
10
73°
42°
11
71°
45°
12
69°
46°
13
68°
42°
14
67°
41°
15
68°
40°
16
64°
38°
17
70°
45°
18
70°
45°
19
68°
44°
20
69°
39°
21
62°
36°
22
59°
37°
23
61°
37°
24
66°
43°
25
69°
42°
26
68°
35°
27
57°
33°
28
58°
33°
29
60°
38°
30
60°
39°
31
61°
37°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Rosemont
Rosemont's October 2026 forecast shows daily high temperatures ranging from 57° to 87°, with overnight lows between 33° and 56°. The average high for October is 67° with an average low of 42°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in Rosemont. See also: November | December | January.
