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Temperature Unit Selection
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°Fahrenheit
Monthly Historical Averages
Grafton, ON
Canada's June weather outlook
Content continues below
June
Average Temperature
High
20°
Feels 20
Low
13°
Feels 12
Average Precipitation
11 Days
Rain amount
86.9mm
Snow amount
0cm
Content continues below
Daily Historical Averages
June 2026
S
M
T
W
T
F
S
1
2
23°
3
20°
4
21°
5
23°
6
21°
7
19°
8
18°
9
19°
10
21°
11
22°
12
21°
13
21°
14
21°
15
20°
16
20°
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Forecast
Tuesday, June 2, 2026
Day
23°
Feels 23
Wind
13 km/h W
Gust
20 km/h
Humidity
33%
P.O.P
20%
Night
11°
Feels 9
Wind
16 km/h NW
Gust
24 km/h
Humidity
71%
P.O.P
20%
Historical Averages
Jun 2
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.