S
M
T
W
T
F
S
27
72°
50°
28
74°
48°
29
77°
44°
30
76°
43°
1
70°
46°
2
74°
52°
3
76°
41°
4
77°
40°
5
66°
42°
6
68°
46°
7
67°
48°
8
68°
47°
9
67°
47°
10
72°
48°
11
75°
48°
12
74°
40°
13
73°
38°
14
65°
39°
15
64°
37°
16
63°
37°
17
61°
38°
18
62°
37°
19
63°
40°
20
65°
44°
21
67°
43°
22
68°
45°
23
69°
43°
24
71°
37°
25
70°
37°
26
63°
35°
27
60°
35°
28
59°
32°
29
58°
40°
30
Hist. Avg.
60°
40°
31
Hist. Avg.
60°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
October Weather in Rosemont
Rosemont's October 2026 forecast shows daily high temperatures ranging from 58° to 77°, with overnight lows between 32° and 52°. The average high for October is 68° 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.
