Monthly Historical AveragesGretna, ON
Average Temperature
High
12°
Feels 11
Low
2°
Feels -1
Average Precipitation
10 Days
65.9mm
3.6cm
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Daily Historical Averages
S
M
T
W
T
F
S
ForecastWednesday, April 1, 2026
Day
5°Feels 2
Wind
19 km/h N
Gust
29 km/h
Humidity
61%
P.O.P
30%
Night
0°Feels -6
Wind
22 km/h NE
Gust
33 km/h
Humidity
80%
P.O.P
20%
Historical AveragesApr 1
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity