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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
21°
17
22°
18
19°
19
16°
20
19°
21
18°
22
19°
23
19°
24
19°
25
19°
26
19°
27
20°
28
19°
29
19°
30
19°
Forecast
Wednesday, September 16, 2026
Day
21°
Feels 22
Wind
13 km/h NW
Gust
20 km/h
Humidity
56%
P.O.P
20%
Night
12°
Feels 11
Wind
12 km/h NW
Gust
18 km/h
Humidity
94%
P.O.P
30%
Historical Averages
Sep 16
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.