S
M
T
W
T
F
S
26
80°
66°
27
81°
67°
28
83°
66°
29
85°
67°
30
84°
68°
31
85°
68°
1
84°
67°
2
85°
66°
3
81°
62°
4
79°
63°
5
78°
65°
6
79°
66°
7
82°
66°
8
81°
65°
9
84°
67°
10
85°
67°
11
82°
66°
12
83°
66°
13
83°
67°
14
84°
64°
15
84°
66°
16
83°
66°
17
80°
67°
18
84°
67°
19
83°
66°
20
82°
62°
21
84°
58°
22
78°
59°
23
77°
58°
24
77°
59°
25
78°
58°
26
80°
61°
27
77°
58°
28
79°
57°
29
76°
57°
30
76°
56°
31
75°
56°
1
74°
55°
2
73°
57°
3
74°
58°
4
73°
58°
5
75°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Weymouth
Weymouth's August 2026 forecast shows daily high temperatures ranging from 73° to 85°, with overnight lows between 55° and 68°. The average high for August is 80° with an average low of 63°. 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 Weymouth. See also: September | October | November.
