Monthly Historical AveragesJefferson, WI
Average Temperature
High
21°
Feels 21
Low
9°
Feels 8
Average Precipitation
11 Days
77.5mm
0cm
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Daily Historical Averages
S
M
T
W
T
F
S
ForecastTuesday, May 19, 2026
Day
21°Feels 21
Wind
32 km/h SW
Gust
48 km/h
Humidity
60%
P.O.P
70%
Rain
1-3 mm
Night
8°Feels 6
Wind
24 km/h NW
Gust
36 km/h
Humidity
76%
P.O.P
20%
Historical AveragesMay 19
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity