S
M
T
W
T
F
S
26
60°
49°
27
68°
43°
28
65°
41°
29
67°
52°
30
71°
49°
1
65°
40°
2
56°
38°
3
64°
41°
4
75°
53°
5
80°
58°
6
80°
61°
7
71°
48°
8
64°
49°
9
67°
52°
10
71°
56°
11
72°
57°
12
69°
55°
13
73°
56°
14
77°
59°
15
76°
57°
16
76°
57°
17
79°
58°
18
80°
61°
19
80°
62°
20
81°
63°
21
81°
62°
22
75°
55°
23
73°
54°
24
73°
56°
25
75°
58°
26
76°
58°
27
75°
56°
28
75°
57°
29
76°
58°
30
76°
60°
31
77°
62°
1
77°
65°
2
79°
64°
3
78°
63°
4
79°
64°
5
81°
66°
6
83°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Lewis
Lewis's May 2026 forecast shows daily high temperatures ranging from 56° to 83°, with overnight lows between 38° and 66°. The average high for May is 75° with an average low of 57°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Lewis. See also: June | July | August.
