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14 Days
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Precipitation
Temperature
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°Fahrenheit
Monthly Historical Averages
Hamilton, ON
Your May weather outlook is here!
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May
Average Temperature
High
20°
Feels 20
Low
9°
Feels 7
Average Precipitation
13 Days
Rain amount
100mm
Snow amount
0cm
Daily Historical Averages
May 2026
S
M
T
W
T
F
S
1
2
9°
3
14°
4
21°
5
16°
6
12°
7
9°
8
10°
9
13°
10
13°
11
14°
12
14°
13
15°
14
15°
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
9°
Feels 7
Wind
18 km/h W
Gust
35 km/h
Humidity
42%
P.O.P
40%
Rain
<1 mm
Night
-1°
Feels -5
Wind
17 km/h W
Gust
26 km/h
Humidity
80%
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.