S
M
T
W
T
F
S
26
87°
69°
27
87°
66°
28
87°
66°
29
88°
68°
30
89°
67°
31
90°
70°
1
92°
68°
2
88°
68°
3
87°
67°
4
86°
65°
5
87°
67°
6
87°
67°
7
86°
68°
8
85°
69°
9
87°
70°
10
87°
71°
11
88°
69°
12
87°
68°
13
92°
71°
14
93°
66°
15
88°
65°
16
87°
69°
17
91°
70°
18
92°
70°
19
91°
67°
20
86°
66°
21
87°
65°
22
87°
66°
23
89°
67°
24
87°
70°
25
86°
70°
26
87°
69°
27
91°
70°
28
92°
70°
29
92°
69°
30
91°
63°
31
86°
64°
1
86°
66°
2
90°
69°
3
89°
68°
4
90°
67°
5
90°
68°
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 85° to 93°, with overnight lows between 63° and 71°. The average high for August is 88° with an average low of 68°. 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.
