S
M
T
W
T
F
S
26
80°
66°
27
83°
68°
28
80°
68°
29
79°
67°
30
84°
65°
31
78°
62°
1
77°
63°
2
77°
63°
3
78°
66°
4
80°
67°
5
83°
67°
6
78°
64°
7
80°
66°
8
84°
67°
9
84°
66°
10
83°
61°
11
81°
60°
12
79°
63°
13
78°
60°
14
80°
60°
15
78°
61°
16
78°
62°
17
76°
63°
18
77°
61°
19
76°
59°
20
77°
59°
21
77°
60°
22
80°
64°
23
79°
64°
24
82°
64°
25
82°
58°
26
81°
57°
27
75°
56°
28
74°
58°
29
74°
60°
30
73°
62°
31
74°
63°
1
79°
60°
2
75°
59°
3
77°
57°
4
74°
56°
5
73°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Bourne
Bourne's August 2026 forecast shows daily high temperatures ranging from 73° to 84°, with overnight lows between 56° and 68°. The average high for August is 79° 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 Bourne. See also: September | October | November.
