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14 Days
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Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Whitby, ON
Exceptional El Niño dominates this fall
Content continues below
September
Average Temperature
High
21°
Feels 21
Low
13°
Feels 13
Average Precipitation
10 Days
Rain amount
62mm
Snow amount
0.1cm
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Daily Historical Averages
September 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
19
20
21
15°
22
17°
23
17°
24
17°
25
19°
26
20°
27
20°
28
20°
29
19°
30
19°
Forecast
Monday, September 21, 2026
Day
15°
Feels 14
Wind
27 km/h E
Gust
41 km/h
Humidity
55%
P.O.P
30%
Night
10°
Feels 7
Wind
25 km/h NE
Gust
38 km/h
Humidity
76%
P.O.P
30%
Historical Averages
Sep 21
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.