Monthly Historical AveragesWatertown, SD
Average Temperature
High
12°
Feels 10
Low
1°
Feels -3
Average Precipitation
9 Days
40.3mm
12.1cm
Content continues below
Daily Historical Averages
S
M
T
W
T
F
S
ForecastTuesday, April 21, 2026
Day
22°Feels 22
Wind
19 km/h N
Gust
29 km/h
Humidity
25%
P.O.P
10%
Night
12°Feels 10
Wind
21 km/h E
Gust
32 km/h
Humidity
62%
P.O.P
10%
Historical AveragesApr 21
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity