S
M
T
W
T
F
S
26
84°
68°
27
85°
68°
28
89°
70°
29
91°
69°
30
91°
70°
31
90°
69°
1
92°
69°
2
90°
68°
3
91°
69°
4
89°
68°
5
84°
64°
6
86°
67°
7
86°
64°
8
86°
64°
9
91°
68°
10
86°
63°
11
85°
63°
12
Hist. Avg.
87°
68°
13
Hist. Avg.
87°
68°
14
Hist. Avg.
87°
68°
15
Hist. Avg.
87°
68°
16
Hist. Avg.
87°
68°
17
Hist. Avg.
87°
68°
18
Hist. Avg.
87°
68°
19
Hist. Avg.
87°
67°
20
Hist. Avg.
87°
67°
21
Hist. Avg.
87°
67°
22
Hist. Avg.
86°
67°
23
Hist. Avg.
86°
67°
24
Hist. Avg.
86°
67°
25
Hist. Avg.
86°
66°
26
Hist. Avg.
86°
66°
27
Hist. Avg.
86°
66°
28
Hist. Avg.
86°
66°
29
Hist. Avg.
86°
66°
30
Hist. Avg.
86°
66°
31
Hist. Avg.
85°
65°
1
Hist. Avg.
85°
65°
2
Hist. Avg.
85°
65°
3
Hist. Avg.
85°
65°
4
Hist. Avg.
85°
64°
5
Hist. Avg.
84°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Cambridge
Cambridge's August 2026 forecast shows daily high temperatures ranging from 84° to 92°, with overnight lows between 63° and 70°. The average high for August is 88° with an average low of 67°. 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.