S
M
T
W
T
F
S
27
74°
55°
28
75°
56°
29
76°
57°
30
80°
58°
1
79°
59°
2
76°
56°
3
76°
55°
4
75°
58°
5
75°
54°
6
73°
52°
7
66°
48°
8
70°
52°
9
70°
55°
10
74°
54°
11
66°
51°
12
64°
49°
13
64°
53°
14
68°
53°
15
68°
54°
16
73°
52°
17
69°
52°
18
68°
51°
19
72°
54°
20
73°
53°
21
71°
51°
22
72°
52°
23
71°
45°
24
59°
41°
25
58°
40°
26
65°
49°
27
66°
47°
28
60°
45°
29
67°
49°
30
69°
50°
31
68°
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 58° to 80°, with overnight lows between 40° and 59°. The average high for October is 70° 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.
