S
M
T
W
T
F
S
31
73°
39°
1
70°
48°
2
93°
46°
3
82°
55°
4
87°
59°
5
91°
64°
6
90°
67°
7
78°
56°
8
75°
53°
9
80°
57°
10
82°
61°
11
86°
65°
12
87°
63°
13
82°
61°
14
81°
63°
15
82°
63°
16
83°
59°
17
75°
54°
18
76°
60°
19
81°
58°
20
78°
56°
21
81°
55°
22
76°
54°
23
76°
55°
24
77°
61°
25
80°
63°
26
85°
61°
27
83°
56°
28
78°
57°
29
79°
56°
30
78°
56°
1
80°
58°
2
79°
57°
3
84°
61°
4
86°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in West Cornwall
West Cornwall's June 2026 forecast shows daily high temperatures ranging from 75° to 91°, with overnight lows between 53° and 67°. The average high for June is 81° with an average low of 59°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in West Cornwall. See also: July | August | September.