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Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
St. Marys, ON
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June
Average Temperature
High
25°
Feels 25
Low
13°
Feels 12
Average Precipitation
10 Days
Rain amount
57.3mm
Snow amount
0cm
Daily Historical Averages
June 2026
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21°
21
23°
22
22°
23
22°
24
21°
25
22°
26
20°
27
23°
28
24°
29
26°
30
26°
Forecast
Saturday, June 20, 2026
Day
21°
Feels 22
Wind
15 km/h W
Gust
23 km/h
Humidity
53%
P.O.P
60%
Rain
1-3 mm
Night
11°
Feels 10
Wind
13 km/h W
Gust
20 km/h
Humidity
94%
P.O.P
40%
Rain
<1 mm
Historical Averages
Jun 20
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.