Monthly Historical AveragesOttawa, IA
Average Temperature
High
22°
Feels 22
Low
11°
Feels 10
Average Precipitation
12 Days
104.4mm
0.1cm
Content continues below
Daily Historical Averages
S
M
T
W
T
F
S
ForecastSaturday, May 30, 2026
Day
24°Feels 24
Wind
25 km/h SE
Gust
38 km/h
Humidity
69%
P.O.P
90%
Rain
5-10 mm
Night
18°Feels 18
Wind
26 km/h SE
Gust
39 km/h
Humidity
94%
P.O.P
100%
Rain
15-20 mm
Historical AveragesMay 30
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity