S
M
T
W
T
F
S
26
79°
60°
27
80°
54°
28
78°
52°
29
74°
57°
30
77°
56°
31
79°
53°
1
73°
53°
2
76°
54°
3
75°
53°
4
73°
52°
5
75°
52°
6
74°
52°
7
72°
53°
8
72°
52°
9
73°
55°
10
73°
56°
11
76°
52°
12
77°
52°
13
78°
53°
14
78°
56°
15
77°
58°
16
78°
58°
17
79°
57°
18
78°
54°
19
75°
51°
20
73°
51°
21
76°
55°
22
76°
55°
23
71°
56°
24
76°
57°
25
75°
56°
26
77°
56°
27
72°
51°
28
73°
49°
29
70°
48°
30
Hist. Avg.
71°
50°
31
Hist. Avg.
71°
50°
1
Hist. Avg.
70°
49°
2
Hist. Avg.
70°
49°
3
Hist. Avg.
70°
49°
4
Hist. Avg.
69°
48°
5
Hist. Avg.
69°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Shediac
Shediac's August 2026 forecast shows daily high temperatures ranging from 70° to 80°, with overnight lows between 48° and 60°. The average high for August is 75° with an average low of 54°. 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 Shediac. See also: September | October | November.