S
M
T
W
T
F
S
26
75°
55°
27
73°
54°
28
61°
45°
29
61°
43°
30
64°
37°
1
64°
32°
2
63°
36°
3
81°
41°
4
82°
52°
5
61°
45°
6
57°
39°
7
68°
49°
8
73°
49°
9
80°
57°
10
70°
45°
11
68°
47°
12
79°
58°
13
79°
57°
14
77°
55°
15
77°
59°
16
82°
59°
17
75°
54°
18
78°
59°
19
77°
54°
20
73°
55°
21
74°
51°
22
69°
50°
23
71°
52°
24
71°
52°
25
72°
53°
26
71°
52°
27
73°
54°
28
72°
58°
29
74°
59°
30
76°
63°
31
75°
59°
1
75°
55°
2
76°
56°
3
78°
64°
4
79°
65°
5
80°
65°
6
80°
64°
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 57° to 82°, with overnight lows between 39° and 65°. The average high for May is 74° with an average low of 55°. 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.
