S
M
T
W
T
F
S
26
86°
65°
27
88°
67°
28
82°
68°
29
83°
68°
30
81°
66°
31
88°
66°
1
90°
72°
2
88°
73°
3
88°
60°
4
87°
64°
5
84°
72°
6
93°
73°
7
94°
70°
8
90°
69°
9
92°
67°
10
90°
70°
11
87°
69°
12
88°
69°
13
89°
66°
14
87°
66°
15
86°
63°
16
81°
64°
17
85°
70°
18
87°
66°
19
91°
67°
20
86°
64°
21
81°
64°
22
78°
66°
23
83°
64°
24
82°
63°
25
83°
62°
26
83°
64°
27
84°
64°
28
81°
63°
29
81°
63°
30
80°
62°
31
78°
58°
1
78°
58°
2
79°
59°
3
78°
64°
4
78°
62°
5
80°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in New Brunswick
New Brunswick's August 2026 forecast shows daily high temperatures ranging from 78° to 91°, with overnight lows between 58° and 70°. The average high for August is 82° with an average low of 63°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in New Brunswick. See also: September | October | November.
