S
M
T
W
T
F
S
27
72°
49°
28
73°
52°
29
78°
54°
30
N/A
1
71°
54°
2
67°
49°
3
67°
50°
4
71°
47°
5
63°
48°
6
67°
53°
7
71°
55°
8
70°
52°
9
67°
50°
10
67°
49°
11
65°
50°
12
65°
50°
13
64°
49°
14
63°
46°
15
58°
47°
16
66°
51°
17
68°
50°
18
67°
50°
19
60°
44°
20
54°
42°
21
54°
39°
22
55°
42°
23
63°
49°
24
65°
49°
25
64°
47°
26
55°
44°
27
52°
41°
28
59°
46°
29
58°
43°
30
57°
46°
31
61°
43°
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 52° to 71°, with overnight lows between 39° and 55°. The average high for October is 63° with an average low of 48°. 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.
