S
M
T
W
T
F
S
26
85°
62°
27
85°
66°
28
74°
67°
29
78°
66°
30
81°
61°
31
84°
62°
1
85°
64°
2
83°
63°
3
84°
63°
4
86°
62°
5
88°
63°
6
84°
64°
7
87°
63°
8
86°
61°
9
86°
65°
10
83°
65°
11
84°
65°
12
81°
64°
13
81°
65°
14
84°
63°
15
81°
61°
16
80°
63°
17
80°
62°
18
79°
61°
19
82°
63°
20
81°
63°
21
80°
62°
22
80°
62°
23
81°
63°
24
85°
56°
25
78°
55°
26
78°
62°
27
84°
64°
28
85°
64°
29
85°
63°
30
84°
59°
31
79°
55°
1
76°
54°
2
76°
54°
3
75°
53°
4
76°
56°
5
77°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Somerville
Somerville's August 2026 forecast shows daily high temperatures ranging from 74° to 88°, with overnight lows between 53° and 67°. The average high for August is 82° with an average low of 62°. 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 Somerville. See also: September | October | November.
