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Current
Hourly
7 Days
14 Days
Weekend
Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Oshawa, ON
Content continues below
May
Average Temperature
High
20°
Feels 19
Low
8°
Feels 7
Average Precipitation
11 Days
Rain amount
95.8mm
Snow amount
0cm
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
24°
18
22°
19
23°
20
13°
21
12°
22
15°
23
14°
24
16°
25
17°
26
18°
27
17°
28
18°
29
18°
30
18°
31
18°
Forecast
Sunday, May 17, 2026
Day
24°
Feels 27
Wind
10 km/h S
Gust
20 km/h
Humidity
53%
P.O.P
20%
Night
12°
Feels 10
Wind
16 km/h E
Gust
28 km/h
Humidity
94%
P.O.P
70%
Rain
2-4 mm
Historical Averages
May 17
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.