Monthly Historical AveragesWaterloo, IL
Average Temperature
High
30°
Feels 33
Low
19°
Feels 19
Average Precipitation
12 Days
113.7mm
0cm
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Daily Historical Averages
S
M
T
W
T
F
S
ForecastTuesday, June 23, 2026
Day
26°Feels 26
Wind
8 km/h E
Gust
13 km/h
Humidity
46%
P.O.P
20%
Night
17°Feels 17
Wind
10 km/h E
Gust
15 km/h
Humidity
81%
P.O.P
30%
Historical AveragesJun 23
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity