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Precipitation
Temperature
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°Celsius
°Fahrenheit
Monthly Historical Averages
Newmarket, ON
Your May weather outlook is here!
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May
Average Temperature
High
19°
Feels 19
Low
8°
Feels 6
Average Precipitation
12 Days
Rain amount
104.5mm
Snow amount
0.1cm
Daily Historical Averages
May 2026
S
M
T
W
T
F
S
1
2
9°
3
13°
4
20°
5
13°
6
10°
7
8°
8
9°
9
11°
10
12°
11
12°
12
13°
13
14°
14
14°
15
14°
16
14°
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Forecast
Saturday, May 2, 2026
Day
9°
Feels 6
Wind
19 km/h NW
Gust
34 km/h
Humidity
40%
P.O.P
40%
Rain
<1 mm
Night
-3°
Feels -6
Wind
18 km/h W
Gust
29 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.