S
M
T
W
T
F
S
26
71°
58°
27
71°
57°
28
74°
52°
29
73°
51°
30
72°
51°
31
79°
60°
1
79°
57°
2
78°
53°
3
76°
57°
4
77°
60°
5
78°
61°
6
79°
59°
7
75°
58°
8
71°
59°
9
73°
58°
10
71°
54°
11
72°
53°
12
74°
52°
13
72°
54°
14
71°
53°
15
72°
55°
16
74°
54°
17
71°
51°
18
73°
53°
19
72°
57°
20
71°
55°
21
70°
54°
22
75°
54°
23
74°
55°
24
74°
56°
25
72°
54°
26
75°
53°
27
74°
54°
28
73°
57°
29
74°
53°
30
68°
52°
31
69°
51°
1
67°
49°
2
67°
47°
3
68°
47°
4
67°
52°
5
67°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Letter
Letter's August 2026 forecast shows daily high temperatures ranging from 67° to 79°, with overnight lows between 47° and 61°. The average high for August is 73° with an average low of 54°. 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 Letter. See also: September | October | November.
