S
M
T
W
T
F
S
26
81°
63°
27
82°
60°
28
83°
65°
29
87°
63°
30
90°
59°
31
89°
62°
1
88°
60°
2
82°
59°
3
81°
60°
4
80°
58°
5
81°
59°
6
80°
58°
7
80°
59°
8
81°
62°
9
79°
61°
10
83°
62°
11
84°
64°
12
81°
66°
13
87°
58°
14
88°
56°
15
80°
57°
16
78°
63°
17
79°
63°
18
84°
57°
19
83°
60°
20
80°
64°
21
85°
64°
22
86°
63°
23
87°
62°
24
86°
63°
25
85°
55°
26
84°
57°
27
78°
61°
28
82°
62°
29
81°
62°
30
85°
61°
31
86°
60°
1
85°
54°
2
81°
59°
3
80°
53°
4
76°
52°
5
77°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Lewis
Lewis's August 2026 forecast shows daily high temperatures ranging from 76° to 90°, with overnight lows between 52° and 66°. The average high for August is 83° with an average low of 60°. 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 Lewis. See also: September | October | November.
