Monthly Historical AveragesVandalia, OH
Average Temperature
High
23°
Feels 23
Low
12°
Feels 11
Average Precipitation
12 Days
81.5mm
0cm
Content continues below
Daily Historical Averages
S
M
T
W
T
F
S
ForecastSunday, May 17, 2026
Day
28°Feels 28
Wind
28 km/h SW
Gust
42 km/h
Humidity
42%
P.O.P
20%
Night
19°Feels 19
Wind
23 km/h S
Gust
34 km/h
Humidity
83%
P.O.P
0%
Historical AveragesMay 17
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity