S
M
T
W
T
F
S
26
78°
60°
27
80°
60°
28
80°
59°
29
79°
61°
30
79°
61°
31
80°
60°
1
80°
61°
2
81°
61°
3
80°
56°
4
79°
58°
5
75°
58°
6
81°
59°
7
79°
58°
8
76°
59°
9
79°
58°
10
80°
58°
11
80°
57°
12
78°
58°
13
79°
58°
14
79°
55°
15
75°
52°
16
73°
51°
17
73°
53°
18
76°
53°
19
73°
50°
20
74°
51°
21
73°
54°
22
75°
56°
23
77°
56°
24
78°
55°
25
77°
53°
26
78°
52°
27
72°
50°
28
70°
54°
29
70°
55°
30
77°
49°
31
77°
47°
1
75°
45°
2
68°
47°
3
68°
47°
4
69°
46°
5
68°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Miramichi
Miramichi's August 2026 forecast shows daily high temperatures ranging from 68° to 81°, with overnight lows between 45° and 61°. The average high for August is 76° with an average low of 55°. 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 Miramichi. See also: September | October | November.