S
M
T
W
T
F
S
26
73°
61°
27
70°
57°
28
81°
63°
29
77°
61°
30
73°
59°
31
70°
54°
1
70°
52°
2
79°
52°
3
82°
54°
4
75°
63°
5
68°
55°
6
68°
52°
7
70°
52°
8
77°
52°
9
81°
61°
10
75°
57°
11
85°
56°
12
94°
63°
13
94°
62°
14
81°
57°
15
77°
51°
16
74°
54°
17
72°
57°
18
74°
57°
19
75°
55°
20
73°
54°
21
76°
57°
22
73°
54°
23
74°
56°
24
70°
51°
25
70°
52°
26
68°
50°
27
67°
50°
28
66°
51°
29
67°
50°
30
67°
54°
31
66°
51°
1
68°
50°
2
70°
56°
3
70°
55°
4
69°
54°
5
70°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Cambridge
Cambridge's August 2026 forecast shows daily high temperatures ranging from 66° to 94°, with overnight lows between 50° and 63°. The average high for August is 73° with an average low of 54°. 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 Cambridge. See also: September | October | November.