Monthly Historical AveragesDelavan, WI
Average Temperature
High
20°
Feels 20
Low
9°
Feels 7
Average Precipitation
11 Days
62.9mm
0cm
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Daily Historical Averages
S
M
T
W
T
F
S
ForecastMonday, May 25, 2026
Day
28°Feels 28
Wind
21 km/h S
Gust
32 km/h
Humidity
35%
P.O.P
10%
Night
16°Feels 16
Wind
22 km/h S
Gust
33 km/h
Humidity
72%
P.O.P
10%
Historical AveragesMay 25
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity