S
M
T
W
T
F
S
28
86°
61°
29
92°
64°
30
91°
72°
1
98°
77°
2
104°
76°
3
104°
70°
4
100°
72°
5
88°
70°
6
74°
64°
7
74°
64°
8
87°
67°
9
79°
72°
10
86°
70°
11
82°
65°
12
86°
62°
13
87°
65°
14
91°
74°
15
99°
68°
16
90°
63°
17
87°
66°
18
79°
70°
19
83°
54°
20
84°
67°
21
88°
71°
22
89°
59°
23
82°
60°
24
85°
61°
25
83°
59°
26
88°
62°
27
87°
68°
28
84°
68°
29
85°
64°
30
85°
65°
31
86°
66°
1
89°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in New Brunswick
New Brunswick's July 2026 forecast shows daily high temperatures ranging from 83° to 89°, with overnight lows between 59° and 68°. The average high for July is 86° 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 July weather will actually feel in New Brunswick. See also: August | September | October.