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7 Days
14 Days
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Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Orillia, ON
Exceptional El Niño dominates this fall
Content continues below
September
Average Temperature
High
20°
Feels 20
Low
11°
Feels 10
Average Precipitation
9 Days
Rain amount
58.2mm
Snow amount
0cm
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
16
17
21°
18
18°
19
17°
20
19°
21
15°
22
17°
23
17°
24
16°
25
18°
26
18°
27
17°
28
17°
29
18°
30
18°
Forecast
Thursday, September 17, 2026
Day
21°
Feels 22
Wind
11 km/h NE
Gust
20 km/h
Humidity
56%
P.O.P
20%
Night
12°
Feels 10
Wind
13 km/h NW
Gust
20 km/h
Humidity
94%
P.O.P
20%
Historical Averages
Sep 17
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.