S
M
T
W
T
F
S
31
75°
51°
1
69°
51°
2
75°
46°
3
83°
58°
4
85°
66°
5
83°
66°
6
77°
61°
7
77°
61°
8
82°
65°
9
83°
65°
10
82°
64°
11
83°
66°
12
85°
66°
13
85°
64°
14
82°
64°
15
83°
65°
16
81°
59°
17
80°
63°
18
83°
64°
19
82°
63°
20
84°
64°
21
84°
57°
22
76°
57°
23
78°
64°
24
85°
67°
25
86°
65°
26
84°
64°
27
79°
62°
28
80°
64°
29
83°
65°
30
83°
64°
1
82°
65°
2
83°
66°
3
86°
66°
4
85°
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 76° to 86°, with overnight lows between 57° and 67°. The average high for June is 82° with an average low of 64°. 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.
