S
M
T
W
T
F
S
26
83°
65°
27
84°
72°
28
82°
67°
29
70°
61°
30
68°
57°
1
63°
48°
2
74°
46°
3
79°
55°
4
81°
63°
5
82°
61°
6
70°
55°
7
75°
54°
8
76°
55°
9
81°
61°
10
81°
62°
11
82°
63°
12
83°
62°
13
82°
58°
14
83°
61°
15
84°
66°
16
85°
65°
17
85°
67°
18
84°
67°
19
85°
66°
20
86°
67°
21
84°
67°
22
85°
66°
23
81°
67°
24
86°
68°
25
86°
68°
26
81°
66°
27
81°
62°
28
83°
65°
29
87°
67°
30
88°
69°
31
88°
69°
1
87°
68°
2
88°
70°
3
89°
70°
4
89°
69°
5
84°
65°
6
83°
65°
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 63° to 89°, with overnight lows between 46° and 70°. The average high for May is 82° with an average low of 63°. 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.
