The Weather Network
Weather
Maps
News
Video
|
Welcome
Monthly
⋮
Current
Hourly
7 Days
14 Days
Weekend
Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Rockdale, ON
Your May weather outlook is here!
Content continues below
May
Average Temperature
High
20°
Feels 19
Low
7°
Feels 6
Average Precipitation
9 Days
Rain amount
40.7mm
Snow amount
0cm
Content continues below
Daily Historical Averages
May 2026
S
M
T
W
T
F
S
1
2
12°
3
12°
4
18°
5
17°
6
13°
7
12°
8
12°
9
13°
10
14°
11
15°
12
15°
13
15°
14
16°
15
16°
16
16°
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Forecast
Saturday, May 2, 2026
Day
12°
Feels 10
Wind
15 km/h W
Gust
36 km/h
Humidity
40%
P.O.P
60%
Rain
1-3 mm
Night
-1°
Feels -4
Wind
14 km/h W
Gust
21 km/h
Humidity
86%
P.O.P
30%
Historical Averages
May 2
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.