Monthly Historical AveragesPort Johnstown, ON
Average Temperature
High
12°
Feels 11
Low
1°
Feels -1
Average Precipitation
10 Days
51.7mm
6.6cm
Content continues below
Daily Historical Averages
S
M
T
W
T
F
S
ForecastSunday, April 5, 2026
Day
9°Feels 6
Wind
28 km/h SW
Gust
42 km/h
Humidity
61%
P.O.P
90%
Rain
~5 mm
Night
0°Feels -5
Wind
26 km/h W
Gust
38 km/h
Humidity
80%
P.O.P
70%
Snow
<1 cm
Rain
~1 mm
Historical AveragesApr 5
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity