S
M
T
W
T
F
S
27
76°
58°
28
75°
58°
29
78°
59°
30
79°
59°
1
78°
58°
2
78°
58°
3
79°
59°
4
80°
60°
5
79°
60°
6
79°
59°
7
78°
58°
8
78°
59°
9
74°
51°
10
76°
55°
11
75°
55°
12
69°
54°
13
67°
51°
14
71°
52°
15
72°
52°
16
73°
47°
17
69°
51°
18
69°
50°
19
70°
48°
20
71°
50°
21
72°
50°
22
74°
49°
23
73°
50°
24
73°
49°
25
69°
52°
26
69°
51°
27
72°
47°
28
70°
40°
29
61°
37°
30
56°
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 80°, with overnight lows between 36° and 60°. The average high for October is 73° with an average low of 52°. 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.
