S
M
T
W
T
F
S
26
67°
49°
27
68°
48°
28
68°
50°
29
69°
53°
30
70°
50°
31
75°
53°
1
77°
53°
2
76°
55°
3
73°
56°
4
74°
51°
5
76°
50°
6
71°
51°
7
69°
52°
8
72°
53°
9
74°
51°
10
72°
50°
11
69°
53°
12
75°
49°
13
70°
49°
14
68°
54°
15
70°
56°
16
73°
52°
17
74°
48°
18
71°
49°
19
67°
48°
20
67°
48°
21
69°
49°
22
69°
48°
23
68°
50°
24
67°
48°
25
68°
46°
26
66°
45°
27
65°
45°
28
64°
46°
29
65°
47°
30
65°
47°
31
66°
51°
1
69°
52°
2
70°
53°
3
70°
47°
4
69°
46°
5
65°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Long Harbour
Long Harbour's August 2026 forecast shows daily high temperatures ranging from 64° to 77°, with overnight lows between 45° and 56°. The average high for August is 70° with an average low of 50°. 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 Long Harbour. See also: September | October | November.