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Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Napanee, ON
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August
Average Temperature
High
26°
Feels 28
Low
15°
Feels 14
Average Precipitation
12 Days
Rain amount
85.5mm
Snow amount
0cm
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Daily Historical Averages
August 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
25°
22
25°
23
23°
24
20°
25
22°
26
23°
27
24°
28
23°
29
22°
30
22°
31
22°
Forecast
Friday, August 21, 2026
Day
25°
Feels 28
Wind
11 km/h SE
Gust
27 km/h
Humidity
41%
P.O.P
10%
Night
15°
Feels 14
Wind
12 km/h E
Gust
18 km/h
Humidity
94%
P.O.P
10%
Historical Averages
Aug 21
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.