S
M
T
W
T
F
S
31
44°
35°
1
36°
34°
2
45°
32°
3
60°
32°
4
67°
43°
5
56°
29°
6
58°
26°
7
53°
38°
8
65°
38°
9
67°
38°
10
55°
39°
11
59°
41°
12
47°
38°
13
45°
38°
14
55°
39°
15
59°
42°
16
60°
45°
17
52°
41°
18
56°
43°
19
60°
45°
20
56°
43°
21
55°
44°
22
57°
46°
23
58°
43°
24
57°
43°
25
58°
44°
26
60°
49°
27
60°
47°
28
60°
46°
29
60°
46°
30
61°
47°
1
61°
48°
2
64°
51°
3
64°
52°
4
66°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in St. John's
St. John's's June 2026 forecast shows daily high temperatures ranging from 45° to 66°, with overnight lows between 38° and 52°. The average high for June is 58° with an average low of 44°. 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's. See also: July | August | September.
