S
M
T
W
T
F
S
26
83°
66°
27
84°
65°
28
84°
63°
29
83°
68°
30
84°
69°
31
84°
63°
1
84°
68°
2
85°
69°
3
87°
63°
4
85°
62°
5
83°
63°
6
83°
62°
7
84°
63°
8
82°
62°
9
82°
65°
10
86°
66°
11
83°
64°
12
85°
67°
13
88°
68°
14
83°
68°
15
85°
67°
16
89°
61°
17
87°
61°
18
81°
62°
19
81°
65°
20
82°
61°
21
82°
60°
22
81°
65°
23
82°
66°
24
85°
67°
25
88°
66°
26
88°
59°
27
85°
58°
28
79°
58°
29
80°
59°
30
80°
61°
31
82°
64°
1
85°
65°
2
85°
63°
3
86°
61°
4
85°
64°
5
85°
63°
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 79° to 89°, with overnight lows between 58° and 69°. The average high for August is 84° 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 August weather will actually feel in New Brunswick. See also: September | October | November.
