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7 Days
14 Days
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Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Deer Park, ON
Content continues below
May
Average Temperature
High
20°
Feels 20
Low
8°
Feels 7
Average Precipitation
12 Days
Rain amount
80.2mm
Snow amount
0.1cm
Content continues below
Daily Historical Averages
May 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
29°
20
14°
21
15°
22
16°
23
13°
24
20°
25
19°
26
21°
27
22°
28
21°
29
21°
30
22°
31
23°
Forecast
Tuesday, May 19, 2026
Day
29°
Feels 36
Wind
36 km/h SW
Gust
66 km/h
Humidity
52%
P.O.P
30%
Night
10°
Feels 6
Wind
36 km/h SW
Gust
63 km/h
Humidity
94%
P.O.P
70%
Rain
2-4 mm
Historical Averages
May 19
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.