S
M
T
W
T
F
S
26
83°
53°
27
80°
51°
28
82°
52°
29
83°
56°
30
68°
61°
31
70°
60°
1
71°
60°
2
83°
59°
3
81°
63°
4
82°
63°
5
89°
65°
6
93°
63°
7
90°
65°
8
84°
67°
9
82°
62°
10
83°
60°
11
79°
58°
12
81°
56°
13
79°
58°
14
78°
56°
15
73°
55°
16
75°
54°
17
71°
55°
18
71°
54°
19
76°
53°
20
74°
56°
21
72°
55°
22
71°
56°
23
75°
57°
24
76°
56°
25
75°
55°
26
71°
54°
27
70°
55°
28
70°
55°
29
71°
57°
30
74°
56°
31
74°
55°
1
73°
54°
2
67°
53°
3
67°
53°
4
69°
52°
5
71°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Moncton
Moncton's August 2026 forecast shows daily high temperatures ranging from 67° to 93°, with overnight lows between 52° and 67°. The average high for August is 75° with an average low of 56°. 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 Moncton. See also: September | October | November.
