S
M
T
W
T
F
S
27
69°
44°
28
69°
48°
29
72°
47°
30
68°
59°
1
68°
60°
2
62°
45°
3
64°
42°
4
70°
48°
5
63°
43°
6
73°
47°
7
77°
54°
8
70°
48°
9
68°
56°
10
79°
53°
11
73°
57°
12
81°
57°
13
63°
52°
14
59°
54°
15
63°
52°
16
59°
43°
17
54°
42°
18
56°
45°
19
59°
44°
20
59°
45°
21
58°
41°
22
57°
43°
23
51°
40°
24
57°
44°
25
60°
46°
26
60°
39°
27
59°
37°
28
49°
33°
29
49°
41°
30
53°
40°
31
60°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Round Lake
Round Lake's October 2026 forecast shows daily high temperatures ranging from 49° to 81°, with overnight lows between 33° and 57°. The average high for October is 61° with an average low of 46°. 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 Round Lake. See also: November | December | January.
