S
M
T
W
T
F
S
26
62°
56°
27
60°
53°
28
61°
57°
29
64°
56°
30
65°
57°
31
64°
58°
1
67°
57°
2
65°
57°
3
67°
58°
4
65°
55°
5
64°
56°
6
63°
57°
7
63°
58°
8
65°
59°
9
66°
58°
10
66°
59°
11
65°
59°
12
65°
58°
13
67°
59°
14
66°
61°
15
67°
55°
16
70°
54°
17
64°
53°
18
65°
54°
19
63°
56°
20
62°
55°
21
63°
57°
22
64°
57°
23
65°
58°
24
64°
57°
25
64°
54°
26
66°
54°
27
65°
53°
28
63°
52°
29
62°
52°
30
61°
53°
31
61°
53°
1
68°
52°
2
62°
51°
3
61°
51°
4
60°
53°
5
61°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Mainland
Mainland's August 2026 forecast shows daily high temperatures ranging from 60° to 70°, with overnight lows between 49° and 61°. The average high for August is 64° 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 Mainland. See also: September | October | November.
