S
M
T
W
T
F
S
27
80°
60°
28
80°
50°
29
79°
50°
30
68°
54°
1
68°
55°
2
70°
56°
3
69°
52°
4
69°
48°
5
72°
57°
6
74°
57°
7
76°
56°
8
74°
53°
9
75°
46°
10
67°
45°
11
66°
48°
12
66°
43°
13
71°
42°
14
63°
43°
15
64°
49°
16
69°
51°
17
67°
48°
18
65°
51°
19
63°
42°
20
69°
41°
21
61°
42°
22
62°
41°
23
60°
41°
24
70°
48°
25
66°
46°
26
67°
39°
27
59°
38°
28
Hist. Avg.
65°
48°
29
Hist. Avg.
65°
47°
30
Hist. Avg.
64°
47°
31
Hist. Avg.
64°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
October Weather in McLean
McLean's October 2026 forecast shows daily high temperatures ranging from 59° to 80°, with overnight lows between 38° and 60°. The average high for October is 69° 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.
