Monthly Historical AveragesMt Vernon, IA
Average Temperature
High
22°
Feels 23
Low
11°
Feels 10
Average Precipitation
13 Days
110.8mm
0cm
Content continues below
Daily Historical Averages
S
M
T
W
T
F
S
ForecastTuesday, May 26, 2026
Day
29°Feels 29
Wind
15 km/h S
Gust
23 km/h
Humidity
33%
P.O.P
20%
Night
16°Feels 16
Wind
14 km/h S
Gust
21 km/h
Humidity
77%
P.O.P
20%
Historical AveragesMay 26
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity