S
M
T
W
T
F
S
26
84°
67°
27
80°
64°
28
79°
60°
29
80°
63°
30
83°
68°
31
85°
67°
1
83°
66°
2
83°
65°
3
87°
60°
4
81°
59°
5
82°
61°
6
81°
60°
7
80°
59°
8
81°
58°
9
80°
57°
10
80°
61°
11
81°
65°
12
85°
66°
13
86°
59°
14
80°
58°
15
80°
60°
16
81°
63°
17
80°
58°
18
79°
58°
19
80°
59°
20
80°
58°
21
82°
61°
22
85°
64°
23
85°
65°
24
86°
65°
25
86°
64°
26
87°
62°
27
85°
63°
28
84°
64°
29
84°
62°
30
83°
56°
31
78°
53°
1
77°
55°
2
77°
55°
3
78°
56°
4
77°
54°
5
76°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in America
America's August 2026 forecast shows daily high temperatures ranging from 76° to 87°, with overnight lows between 53° and 68°. The average high for August is 82° with an average low of 61°. 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 America. See also: September | October | November.