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Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Niagara Falls, ON KOA, ON
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May
Average Temperature
High
20°
Feels 20
Low
9°
Feels 8
Average Precipitation
12 Days
Rain amount
79.9mm
Snow amount
0.1cm
Content continues below
Daily Historical Averages
May 2026
S
M
T
W
T
F
S
1
2
3
4
5
17°
6
10°
7
9°
8
10°
9
14°
10
13°
11
12°
12
10°
13
12°
14
14°
15
15°
16
14°
17
14°
18
14°
19
15°
20
21
22
23
24
25
26
27
28
29
30
31
Forecast
Tuesday, May 5, 2026
Day
17°
Feels 16
Wind
33 km/h SW
Gust
51 km/h
Humidity
71%
P.O.P
100%
Rain
~5 mm
Night
7°
Feels 3
Wind
16 km/h NW
Gust
24 km/h
Humidity
100%
P.O.P
100%
Rain
15-20 mm
Historical Averages
May 5
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.