S
M
T
W
T
F
S
27
73°
45°
28
74°
44°
29
78°
48°
30
67°
59°
1
70°
60°
2
65°
48°
3
69°
42°
4
72°
49°
5
69°
43°
6
73°
47°
7
79°
52°
8
72°
47°
9
70°
49°
10
80°
57°
11
77°
48°
12
87°
58°
13
78°
65°
14
65°
58°
15
65°
56°
16
56°
41°
17
56°
36°
18
63°
38°
19
67°
38°
20
69°
37°
21
71°
39°
22
73°
44°
23
70°
43°
24
68°
48°
25
73°
50°
26
65°
49°
27
67°
51°
28
69°
50°
29
69°
45°
30
64°
46°
31
53°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Algonquin
Algonquin's October 2026 forecast shows daily high temperatures ranging from 53° to 73°, with overnight lows between 42° and 51°. The average high for October is 66° 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 Algonquin. See also: November | December | January.
