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7 Days
14 Days
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Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Napoleon, OH
Content continues below
May
Average Temperature
High
22°
Feels 22
Low
11°
Feels 10
Average Precipitation
12 Days
Rain amount
86.2mm
Snow amount
0cm
Content continues below
Daily Historical Averages
May 2026
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
30°
18
32°
19
31°
20
19°
21
16°
22
20°
23
21°
24
22°
25
22°
26
23°
27
23°
28
24°
29
24°
30
24°
31
24°
Forecast
Sunday, May 17, 2026
Day
30°
Feels 31
Wind
29 km/h SW
Gust
44 km/h
Humidity
46%
P.O.P
40%
Rain
<1 mm
Night
21°
Feels 21
Wind
28 km/h S
Gust
42 km/h
Humidity
69%
P.O.P
30%
Historical Averages
May 17
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.