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
96°
73°
15
101°
74°
16
94°
70°
17
93°
67°
18
85°
70°
19
85°
69°
20
87°
67°
21
86°
66°
22
82°
65°
23
81°
64°
24
83°
66°
25
84°
67°
26
83°
66°
27
84°
65°
28
84°
69°
29
86°
66°
30
82°
66°
31
82°
67°
1
83°
67°
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 81° to 101°, with overnight lows between 64° and 74°. The average high for July is 86° with an average low of 68°. 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.