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
Maynooth, ON
Content continues below
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
27°
19
25°
20
11°
21
13°
22
17°
23
13°
24
14°
25
19°
26
20°
27
21°
28
20°
29
21°
30
20°
31
21°
Forecast
Monday, May 18, 2026
Day
27°
Feels 33
Wind
23 km/h SW
Gust
53 km/h
Humidity
54%
P.O.P
60%
Rain
~5 mm
Night
18°
Feels 18
Wind
19 km/h SW
Gust
44 km/h
Humidity
94%
P.O.P
60%
Rain
2-4 mm
Historical Averages
May 18
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.
May
Average Temperature
High
18°
Feels 18
Low
4°
Feels 3
Average Precipitation
11 Days
Rain amount
70.4mm
Snow amount
0.7cm