S
M
T
W
T
F
S
27
81°
59°
28
79°
58°
29
78°
59°
30
79°
51°
1
77°
48°
2
68°
47°
3
67°
48°
4
68°
50°
5
72°
47°
6
71°
54°
7
69°
55°
8
67°
53°
9
69°
49°
10
67°
46°
11
65°
53°
12
69°
46°
13
67°
52°
14
68°
45°
15
73°
41°
16
63°
41°
17
62°
44°
18
61°
50°
19
62°
49°
20
66°
50°
21
68°
51°
22
71°
52°
23
73°
51°
24
71°
42°
25
71°
39°
26
61°
39°
27
58°
43°
28
58°
40°
29
57°
38°
30
57°
37°
31
56°
36°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in McLean
McLean's October 2026 forecast shows daily high temperatures ranging from 56° to 81°, with overnight lows between 36° and 59°. The average high for October is 68° 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 McLean. See also: November | December | January.
