S
M
T
W
T
F
S
27
72°
49°
28
73°
52°
29
78°
54°
30
70°
60°
1
70°
61°
2
66°
52°
3
68°
53°
4
73°
50°
5
63°
48°
6
67°
53°
7
73°
56°
8
76°
54°
9
72°
57°
10
71°
56°
11
68°
50°
12
65°
50°
13
64°
48°
14
67°
51°
15
63°
46°
16
66°
50°
17
67°
50°
18
67°
49°
19
60°
44°
20
54°
41°
21
53°
39°
22
53°
42°
23
63°
49°
24
65°
48°
25
63°
46°
26
54°
43°
27
52°
41°
28
58°
46°
29
57°
42°
30
57°
46°
31
61°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in River Forest
River Forest's October 2026 forecast shows daily high temperatures ranging from 52° to 76°, with overnight lows between 39° and 57°. The average high for October is 64° 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 River Forest. See also: November | December | January.
