S
M
T
W
T
F
S
26
70°
59°
27
70°
59°
28
69°
58°
29
70°
59°
30
71°
60°
31
72°
60°
1
71°
59°
2
72°
59°
3
71°
58°
4
69°
59°
5
70°
59°
6
69°
58°
7
71°
59°
8
69°
59°
9
69°
60°
10
71°
59°
11
71°
59°
12
70°
58°
13
71°
60°
14
72°
56°
15
72°
57°
16
71°
56°
17
73°
57°
18
73°
59°
19
74°
58°
20
73°
58°
21
73°
55°
22
72°
53°
23
72°
53°
24
70°
54°
25
70°
53°
26
71°
52°
27
67°
54°
28
66°
51°
29
65°
51°
30
67°
50°
31
65°
49°
1
64°
49°
2
64°
50°
3
65°
52°
4
66°
52°
5
66°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Yarmouth
Yarmouth's August 2026 forecast shows daily high temperatures ranging from 64° to 74°, with overnight lows between 49° and 60°. The average high for August is 70° 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 Yarmouth. See also: September | October | November.
