S
M
T
W
T
F
S
27
73°
50°
28
75°
49°
29
79°
50°
30
65°
60°
1
72°
60°
2
67°
50°
3
71°
48°
4
74°
49°
5
70°
44°
6
74°
49°
7
80°
53°
8
74°
49°
9
74°
52°
10
81°
58°
11
78°
53°
12
87°
60°
13
78°
66°
14
67°
59°
15
66°
56°
16
58°
43°
17
56°
37°
18
64°
38°
19
68°
38°
20
71°
43°
21
73°
42°
22
74°
46°
23
72°
49°
24
70°
50°
25
73°
50°
26
66°
50°
27
70°
50°
28
75°
56°
29
69°
48°
30
67°
52°
31
63°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Romeoville
Romeoville's October 2026 forecast shows daily high temperatures ranging from 63° to 75°, with overnight lows between 48° and 56°. The average high for October is 69° 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 October weather will actually feel in Romeoville. See also: November | December | January.
