S
M
T
W
T
F
S
27
80°
53°
28
69°
50°
29
68°
50°
30
69°
58°
1
78°
53°
2
70°
48°
3
72°
44°
4
65°
44°
5
66°
49°
6
68°
56°
7
72°
55°
8
70°
55°
9
75°
54°
10
75°
53°
11
74°
50°
12
66°
53°
13
72°
48°
14
73°
40°
15
64°
41°
16
61°
40°
17
61°
40°
18
62°
44°
19
65°
51°
20
68°
50°
21
70°
40°
22
69°
39°
23
59°
38°
24
59°
36°
25
56°
38°
26
59°
43°
27
64°
44°
28
67°
46°
29
67°
46°
30
66°
49°
31
67°
48°
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 80°, with overnight lows between 36° and 58°. The average high for October is 68° 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 McLean. See also: November | December | January.
