S
M
T
W
T
F
S
26
87°
70°
27
89°
64°
28
89°
66°
29
92°
67°
30
97°
66°
31
90°
65°
1
89°
69°
2
94°
64°
3
88°
63°
4
87°
62°
5
88°
63°
6
88°
64°
7
89°
65°
8
87°
67°
9
88°
64°
10
88°
65°
11
93°
69°
12
95°
71°
13
96°
68°
14
94°
67°
15
87°
69°
16
90°
69°
17
95°
64°
18
91°
62°
19
86°
64°
20
87°
63°
21
88°
61°
22
91°
59°
23
84°
61°
24
85°
65°
25
89°
68°
26
88°
70°
27
92°
70°
28
93°
67°
29
94°
64°
30
91°
65°
31
84°
66°
1
86°
66°
2
84°
58°
3
83°
58°
4
81°
66°
5
87°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Haven
Haven's August 2026 forecast shows daily high temperatures ranging from 81° to 97°, with overnight lows between 58° and 71°. The average high for August is 89° with an average low of 65°. 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 Haven. See also: September | October | November.
