S
M
T
W
T
F
S
27
82°
60°
28
80°
60°
29
84°
54°
30
76°
58°
1
75°
59°
2
80°
58°
3
74°
58°
4
77°
57°
5
74°
57°
6
72°
56°
7
80°
56°
8
81°
55°
9
81°
50°
10
72°
49°
11
76°
51°
12
75°
46°
13
71°
45°
14
68°
46°
15
70°
48°
16
73°
52°
17
73°
51°
18
70°
52°
19
69°
50°
20
75°
48°
21
67°
44°
22
69°
43°
23
69°
46°
24
72°
49°
25
75°
50°
26
Hist. Avg.
70°
44°
27
Hist. Avg.
70°
44°
28
Hist. Avg.
70°
44°
29
Hist. Avg.
70°
44°
30
Hist. Avg.
69°
43°
31
Hist. Avg.
69°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
October Weather in Cornwell
Cornwell's October 2026 forecast shows daily high temperatures ranging from 67° to 84°, with overnight lows between 43° and 60°. The average high for October is 74° 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 Cornwell. See also: November | December | January.