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
Leeds and the Thousand Islands, ON
Exceptional El Niño dominates this fall
Content continues below
September
Average Temperature
High
22°
Feels 22
Low
12°
Feels 11
Average Precipitation
11 Days
Rain amount
79.1mm
Snow amount
0.1cm
Content continues below
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
21°
16
24°
17
23°
18
20°
19
18°
20
19°
21
18°
22
19°
23
19°
24
19°
25
20°
26
20°
27
20°
28
19°
29
19°
30
Forecast
Tuesday, September 15, 2026
Day
21°
Feels 22
Wind
19 km/h S
Gust
39 km/h
Humidity
49%
P.O.P
40%
Rain
<1 mm
Night
18°
Feels 18
Wind
20 km/h S
Gust
35 km/h
Humidity
83%
P.O.P
40%
Rain
~1 mm
Historical Averages
Sep 15
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.