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7 Days
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Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Perth South, ON
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May
Average Temperature
High
20°
Feels 20
Low
8°
Feels 6
Average Precipitation
10 Days
Rain amount
43.2mm
Snow amount
0.1cm
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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
20
21
22
23
24
25
26
27
28
29
23°
30
21°
31
20°
Forecast
Friday, May 29, 2026
Day
23°
Feels 23
Wind
31 km/h W
Gust
47 km/h
Humidity
36%
P.O.P
10%
Night
7°
Feels 3
Wind
30 km/h NE
Gust
50 km/h
Humidity
66%
P.O.P
10%
Historical Averages
May 29
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.