Monthly Historical AveragesGrafton, ON
Average Temperature
High
2°
Feels -2
Low
-4°
Feels -10
Average Precipitation
9 Days
34.6mm
14.6cm
Content continues below
Daily Historical Averages
S
M
T
W
T
F
S
ForecastThursday, December 25, 2025
Day
0°Feels -5
Wind
28 km/h N
Gust
42 km/h
Humidity
54%
P.O.P
30%
Night
-13°Feels -22
Wind
25 km/h NE
Gust
38 km/h
Humidity
67%
P.O.P
20%
Historical AveragesDec 25
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity