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°
42°
3
62°
40°
4
77°
37°
5
79°
49°
6
71°
59°
7
63°
46°
8
68°
42°
9
73°
50°
10
82°
55°
11
61°
46°
12
69°
45°
13
72°
51°
14
69°
49°
15
70°
53°
16
77°
59°
17
80°
64°
18
84°
64°
19
84°
62°
20
80°
60°
21
80°
62°
22
83°
59°
23
80°
63°
24
82°
62°
25
82°
63°
26
81°
64°
27
83°
64°
28
83°
63°
29
82°
65°
30
83°
66°
31
84°
66°
1
84°
65°
2
83°
65°
3
83°
64°
4
81°
65°
5
84°
67°
6
84°
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 61° to 84°, with overnight lows between 45° and 67°. The average high for May is 79° 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 May weather will actually feel in Lewis. See also: June | July | August.
