S
M
T
W
T
F
S
27
70°
47°
28
72°
49°
29
78°
51°
30
70°
60°
1
69°
53°
2
66°
48°
3
66°
48°
4
72°
46°
5
64°
45°
6
67°
51°
7
71°
54°
8
72°
53°
9
67°
51°
10
67°
53°
11
65°
48°
12
65°
48°
13
64°
49°
14
63°
45°
15
57°
46°
16
66°
50°
17
67°
49°
18
67°
49°
19
60°
43°
20
54°
41°
21
53°
39°
22
53°
41°
23
63°
48°
24
65°
48°
25
64°
46°
26
54°
43°
27
52°
40°
28
58°
45°
29
57°
42°
30
57°
45°
31
61°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Long Grove
Long Grove's October 2026 forecast shows daily high temperatures ranging from 52° to 72°, with overnight lows between 39° and 54°. The average high for October is 63° with an average low of 47°. 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 Long Grove. See also: November | December | January.
