S
M
T
W
T
F
S
1
77°
46°
2
75°
54°
3
82°
48°
4
82°
55°
5
81°
64°
6
88°
64°
7
86°
68°
8
86°
70°
9
88°
64°
10
82°
68°
11
86°
68°
12
88°
64°
13
88°
72°
14
90°
72°
15
88°
68°
16
84°
72°
17
90°
72°
18
90°
72°
19
90°
70°
20
86°
64°
21
90°
63°
22
95°
68°
23
97°
70°
24
97°
73°
25
95°
75°
26
95°
70°
27
95°
70°
28
88°
72°
29
95°
70°
30
93°
73°
1
91°
72°
2
82°
72°
3
90°
70°
4
88°
70°
5
88°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Cornwall
Cornwall's June 2025 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for June is ° with an average low of °. 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 Cornwall. See also: July | August | September.
