S
M
T
W
T
F
S
31
71°
60°
1
80°
59°
2
78°
59°
3
80°
59°
4
79°
60°
5
80°
58°
6
82°
56°
7
79°
55°
8
75°
55°
9
75°
57°
10
78°
59°
11
76°
56°
12
78°
62°
13
82°
63°
14
83°
64°
15
86°
64°
16
85°
63°
17
86°
64°
18
85°
59°
19
85°
65°
20
86°
65°
21
86°
66°
22
88°
65°
23
88°
66°
24
89°
67°
25
88°
65°
26
88°
60°
27
82°
60°
28
80°
61°
29
80°
61°
30
82°
63°
1
82°
67°
2
86°
66°
3
83°
65°
4
83°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in New Brunswick
New Brunswick's June 2026 forecast shows daily high temperatures ranging from 71° to 89°, with overnight lows between 55° and 67°. The average high for June is 82° with an average low of 62°. 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 New Brunswick. See also: July | August | September.
