S
M
T
W
T
F
S
26
67°
64°
27
75°
62°
28
78°
66°
29
68°
66°
30
67°
63°
31
N/A
1
81°
68°
2
79°
69°
3
76°
68°
4
80°
67°
5
80°
70°
6
80°
69°
7
80°
68°
8
78°
67°
9
79°
68°
10
81°
66°
11
78°
67°
12
76°
64°
13
76°
63°
14
75°
62°
15
75°
63°
16
72°
62°
17
73°
65°
18
73°
64°
19
74°
65°
20
72°
64°
21
72°
62°
22
73°
64°
23
75°
65°
24
77°
65°
25
75°
64°
26
72°
64°
27
71°
63°
28
71°
65°
29
72°
65°
30
75°
64°
31
74°
63°
1
76°
62°
2
69°
60°
3
69°
61°
4
70°
60°
5
68°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Wellfleet
Wellfleet's August 2026 forecast shows daily high temperatures ranging from 68° to 81°, with overnight lows between 59° and 70°. The average high for August is 75° with an average low of 65°. 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 Wellfleet. See also: September | October | November.
