S
M
T
W
T
F
S
26
88°
69°
27
88°
68°
28
87°
67°
29
87°
68°
30
86°
63°
31
80°
61°
1
80°
61°
2
81°
62°
3
83°
63°
4
83°
61°
5
82°
61°
6
84°
64°
7
84°
67°
8
83°
67°
9
82°
65°
10
85°
60°
11
84°
60°
12
84°
61°
13
83°
65°
14
84°
66°
15
87°
65°
16
86°
67°
17
87°
67°
18
87°
65°
19
85°
59°
20
82°
59°
21
80°
60°
22
80°
58°
23
81°
58°
24
80°
59°
25
82°
59°
26
85°
58°
27
83°
58°
28
80°
62°
29
80°
60°
30
78°
61°
31
83°
63°
1
84°
57°
2
82°
56°
3
77°
55°
4
78°
57°
5
77°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Tappan
Tappan's August 2026 forecast shows daily high temperatures ranging from 77° to 88°, with overnight lows between 55° and 69°. The average high for August is 83° 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 Tappan. See also: September | October | November.
