Monthly Historical AveragesJanesville, WI
Average Temperature
High
-2°
Feels -6
Low
-10°
Feels -16
Average Precipitation
4 Days
4.6mm
13.7cm
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Daily Historical Averages
S
M
T
W
T
F
S
ForecastSunday, February 22, 2026
Day
-3°Feels -11
Wind
33 km/h NW
Gust
48 km/h
Humidity
51%
P.O.P
30%
Night
-11°Feels -20
Wind
29 km/h N
Gust
44 km/h
Humidity
79%
P.O.P
30%
Historical AveragesFeb 22
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity