S
M
T
W
T
F
S
26
76°
56°
27
82°
61°
28
84°
57°
29
83°
57°
30
79°
53°
31
78°
54°
1
76°
55°
2
76°
55°
3
77°
54°
4
76°
54°
5
77°
56°
6
78°
62°
7
76°
62°
8
80°
60°
9
77°
57°
10
82°
60°
11
82°
57°
12
78°
58°
13
84°
52°
14
75°
54°
15
77°
61°
16
78°
55°
17
77°
52°
18
76°
53°
19
75°
54°
20
76°
53°
21
75°
52°
22
74°
56°
23
76°
55°
24
78°
50°
25
72°
56°
26
71°
55°
27
75°
56°
28
71°
51°
29
72°
53°
30
75°
50°
31
72°
50°
1
71°
55°
2
72°
50°
3
71°
48°
4
69°
56°
5
73°
59°
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 69° to 84°, with overnight lows between 48° and 62°. The average high for August is 76° with an average low of 55°. 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.
