S
M
T
W
T
F
S
31
75°
51°
1
69°
51°
2
75°
46°
3
83°
46°
4
87°
54°
5
80°
67°
6
89°
67°
7
85°
65°
8
81°
66°
9
89°
71°
10
90°
65°
11
82°
65°
12
81°
60°
13
82°
60°
14
72°
57°
15
76°
52°
16
76°
56°
17
69°
52°
18
73°
58°
19
77°
59°
20
79°
59°
21
70°
59°
22
70°
53°
23
73°
54°
24
73°
55°
25
72°
56°
26
76°
59°
27
77°
60°
28
77°
64°
29
83°
65°
30
83°
66°
1
84°
63°
2
83°
64°
3
79°
62°
4
80°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in St. John
St. John's June 2026 forecast shows daily high temperatures ranging from 70° to 84°, with overnight lows between 53° and 66°. The average high for June is 77° with an average low of 60°. 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 St. John. See also: July | August | September.
