S
M
T
W
T
F
S
31
82°
61°
1
83°
61°
2
81°
58°
3
83°
52°
4
85°
58°
5
85°
60°
6
88°
68°
7
89°
72°
8
85°
72°
9
91°
72°
10
91°
74°
11
92°
71°
12
84°
66°
13
84°
70°
14
78°
57°
15
76°
56°
16
83°
65°
17
84°
74°
18
83°
63°
19
81°
62°
20
83°
67°
21
84°
68°
22
83°
66°
23
84°
67°
24
86°
67°
25
87°
64°
26
92°
71°
27
84°
64°
28
81°
65°
29
82°
66°
30
83°
65°
1
83°
65°
2
84°
72°
3
86°
72°
4
85°
71°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Saint John
Saint John's June 2026 forecast shows daily high temperatures ranging from 76° to 92°, with overnight lows between 56° and 74°. The average high for June is 83° with an average low of 66°. 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 Saint John. See also: July | August | September.
