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