S
M
T
W
T
F
S
31
90°
71°
1
92°
72°
2
93°
73°
3
90°
71°
4
86°
72°
5
84°
73°
6
86°
73°
7
89°
77°
8
90°
77°
9
91°
74°
10
94°
76°
11
93°
77°
12
93°
75°
13
91°
77°
14
92°
74°
15
91°
77°
16
94°
73°
17
94°
76°
18
93°
75°
19
94°
76°
20
94°
76°
21
93°
75°
22
94°
76°
23
94°
76°
24
93°
75°
25
95°
76°
26
95°
76°
27
96°
75°
28
95°
76°
29
95°
76°
30
94°
75°
1
95°
76°
2
96°
77°
3
96°
77°
4
94°
76°
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 84° to 96°, with overnight lows between 71° and 77°. The average high for June is 93° with an average low of 75°. 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.
