S
M
T
W
T
F
S
27
90°
63°
28
92°
63°
29
94°
59°
30
93°
65°
1
94°
71°
2
85°
70°
3
79°
68°
4
81°
61°
5
86°
57°
6
87°
60°
7
87°
58°
8
89°
59°
9
86°
60°
10
76°
60°
11
79°
61°
12
83°
62°
13
81°
63°
14
79°
59°
15
80°
55°
16
75°
50°
17
76°
49°
18
77°
54°
19
70°
54°
20
69°
54°
21
68°
52°
22
70°
49°
23
70°
49°
24
76°
48°
25
68°
47°
26
76°
52°
27
74°
49°
28
73°
51°
29
75°
52°
30
73°
53°
31
73°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Lanark
Lanark's October 2026 forecast shows daily high temperatures ranging from 68° to 89°, with overnight lows between 47° and 63°. The average high for October is 77° with an average low of 55°. 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 Lanark. See also: November | December | January.