S
M
T
W
T
F
S
26
72°
61°
27
79°
61°
28
79°
64°
29
70°
66°
30
66°
63°
31
75°
63°
1
82°
64°
2
82°
70°
3
81°
68°
4
82°
63°
5
82°
61°
6
84°
73°
7
90°
73°
8
82°
72°
9
88°
65°
10
85°
69°
11
85°
65°
12
83°
67°
13
84°
66°
14
83°
63°
15
81°
64°
16
79°
60°
17
79°
61°
18
78°
60°
19
81°
62°
20
80°
63°
21
76°
61°
22
76°
64°
23
79°
66°
24
74°
60°
25
75°
63°
26
77°
64°
27
81°
65°
28
81°
64°
29
77°
59°
30
74°
57°
31
73°
57°
1
73°
58°
2
74°
60°
3
73°
59°
4
74°
61°
5
73°
62°
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 88°, with overnight lows between 57° and 72°. The average high for August is 79° with an average low of 63°. 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.
