S
M
T
W
T
F
S
27
74°
57°
28
75°
58°
29
75°
56°
30
74°
53°
1
71°
58°
2
76°
59°
3
70°
58°
4
69°
58°
5
76°
59°
6
76°
58°
7
75°
56°
8
72°
56°
9
73°
47°
10
62°
45°
11
62°
44°
12
63°
47°
13
64°
50°
14
71°
52°
15
72°
53°
16
73°
54°
17
71°
50°
18
70°
44°
19
59°
42°
20
60°
42°
21
63°
48°
22
66°
51°
23
69°
50°
24
67°
49°
25
64°
49°
26
62°
48°
27
63°
50°
28
66°
47°
29
61°
44°
30
57°
35°
31
52°
34°
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 52° to 76°, with overnight lows between 34° and 59°. The average high for October is 68° with an average low of 50°. 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.
