S
M
T
W
T
F
S
26
55°
28°
27
50°
30°
28
50°
27°
29
57°
23°
30
52°
23°
1
63°
19°
2
75°
32°
3
75°
32°
4
52°
27°
5
45°
23°
6
54°
27°
7
64°
25°
8
72°
34°
9
61°
36°
10
64°
28°
11
82°
41°
12
75°
41°
13
82°
34°
14
79°
52°
15
77°
43°
16
68°
43°
17
48°
43°
18
45°
41°
19
55°
37°
20
70°
37°
21
70°
48°
22
57°
48°
23
72°
45°
24
82°
55°
25
88°
60°
26
88°
61°
27
85°
60°
28
83°
61°
29
79°
58°
30
74°
56°
31
76°
55°
1
78°
56°
2
79°
53°
3
78°
53°
4
76°
54°
5
77°
53°
6
72°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Napoleon
Napoleon's May 2026 forecast shows daily high temperatures ranging from 72° to 88°, with overnight lows between 50° and 61°. The average high for May is 80° with an average low of 56°. 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 Napoleon. See also: June | July | August.
