S
M
T
W
T
F
S
26
82°
65°
27
85°
68°
28
81°
68°
29
83°
67°
30
85°
68°
31
85°
68°
1
84°
67°
2
81°
67°
3
80°
66°
4
80°
67°
5
82°
66°
6
81°
67°
7
80°
67°
8
81°
66°
9
80°
67°
10
79°
67°
11
80°
66°
12
79°
63°
13
79°
62°
14
80°
65°
15
79°
66°
16
79°
65°
17
80°
64°
18
79°
64°
19
80°
65°
20
79°
66°
21
86°
60°
22
85°
59°
23
84°
59°
24
80°
58°
25
79°
61°
26
80°
59°
27
84°
58°
28
78°
62°
29
77°
64°
30
86°
57°
31
81°
56°
1
77°
56°
2
78°
63°
3
79°
57°
4
82°
63°
5
79°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Roslindale
Roslindale's August 2026 forecast shows daily high temperatures ranging from 77° to 86°, with overnight lows between 56° and 68°. The average high for August is 81° with an average low of 64°. 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 Roslindale. See also: September | October | November.