Monthly Historical AveragesRiver Valley, ON
Average Temperature
High
18°
Feels 18
Low
6°
Feels 4
Average Precipitation
11 Days
78.8mm
1.2cm
Content continues below
Daily Historical Averages
S
M
T
W
T
F
S
ForecastMonday, May 25, 2026
Day
22°Feels 23
Wind
18 km/h W
Gust
27 km/h
Humidity
50%
P.O.P
30%
Night
10°Feels 8
Wind
18 km/h SW
Gust
27 km/h
Humidity
100%
P.O.P
20%
Historical AveragesMay 25
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity