S
M
T
W
T
F
S
26
76°
51°
27
67°
56°
28
67°
56°
29
65°
48°
30
63°
40°
1
58°
43°
2
56°
38°
3
64°
49°
4
73°
58°
5
66°
46°
6
57°
41°
7
56°
41°
8
61°
45°
9
67°
51°
10
69°
50°
11
69°
51°
12
68°
51°
13
69°
55°
14
74°
52°
15
71°
53°
16
76°
58°
17
75°
57°
18
73°
58°
19
76°
57°
20
74°
54°
21
75°
50°
22
69°
49°
23
68°
49°
24
70°
51°
25
69°
51°
26
69°
50°
27
70°
51°
28
71°
52°
29
72°
54°
30
74°
59°
31
77°
60°
1
73°
54°
2
74°
55°
3
76°
60°
4
76°
59°
5
78°
62°
6
82°
64°
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 82°, with overnight lows between 38° and 64°. The average high for May is 70° with an average low of 53°. 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.
