S
M
T
W
T
F
S
26
87°
67°
27
87°
66°
28
85°
65°
29
85°
66°
30
84°
64°
31
84°
65°
1
83°
64°
2
84°
64°
3
85°
66°
4
84°
65°
5
84°
64°
6
79°
63°
7
78°
63°
8
80°
62°
9
77°
62°
10
79°
64°
11
81°
63°
12
82°
56°
13
83°
55°
14
81°
64°
15
80°
59°
16
85°
53°
17
74°
52°
18
71°
50°
19
72°
51°
20
73°
52°
21
74°
52°
22
74°
52°
23
75°
56°
24
74°
60°
25
78°
51°
26
73°
50°
27
72°
51°
28
72°
54°
29
79°
59°
30
79°
58°
31
82°
49°
1
72°
49°
2
70°
55°
3
71°
58°
4
78°
49°
5
80°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Fairhaven
Fairhaven's August 2026 forecast shows daily high temperatures ranging from 70° to 87°, with overnight lows between 46° and 67°. The average high for August is 79° with an average low of 58°. 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 Fairhaven. See also: September | October | November.
