Hourly Weather in Cornwall, Ontario, Canada
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
4 mph
Calm
5 mph
Calm
5 mph
Light
5 mph
Light
5 mph
Light
6 mph
Light
5 mph
Calm
3 mph
Calm
2 mph
Calm
Humidity
77%
Extremely humid
65%
Humid
53%
Comfortable
40%
Dry
33%
Dry
30%
Dry
30%
Very dry
30%
Very dry
29%
Very dry
Visibility
10 mi
Good
10 mi
Good
10 mi
Good
10 mi
Good
10 mi
Good
10 mi
Good
10 mi
Good
10 mi
Good
10 mi
Good
Pressure
1033 hPa
Very high
1033 hPa
Very high
1033 hPa
Very high
1033 hPa
Very high
1033 hPa
Very high
1032 hPa
Very high
1032 hPa
Very high
1032 hPa
Very high
1032 hPa
Very high
Clouds
22%
22%
28%
2%
0%
0%
0%
0%
2%
Dew point
33°
32°
31°
27°
24°
23°
24°
24°
24°
UV Index
0
1
3
4
5
5
4
3
2
Air quality
52
Moderate
51
Moderate
49
Good
42
Good
33
Good
36
Good
38
Good
39
Good
40
Good
Pollen index
Tree
0 / 5
1 / 5
1 / 5
2 / 5
2 / 5
2 / 5
2 / 5
2 / 5
2 / 5
Weed
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
Grass
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
Pollutants
Low risk
High risk
PM10
0.54 μg/ft3
0.47 μg/ft3
0.42 μg/ft3
0.32 μg/ft3
0.25 μg/ft3
0.23 μg/ft3
0.22 μg/ft3
0.22 μg/ft3
0.22 μg/ft3
PM25
0.38 μg/ft3
0.33 μg/ft3
0.29 μg/ft3
0.22 μg/ft3
0.17 μg/ft3
0.16 μg/ft3
0.15 μg/ft3
0.15 μg/ft3
0.15 μg/ft3
NO2
11.33 ppb
8.82 ppb
6.31 ppb
3.81 ppb
3.2 ppb
2.6 ppb
1.99 ppb
2.16 ppb
2.33 ppb
SO2
2.93 ppb
2.69 ppb
2.45 ppb
2.22 ppb
1.92 ppb
1.62 ppb
1.32 ppb
1.29 ppb
1.26 ppb
CO
0.25 ppb
0.22 ppb
0.19 ppb
0.16 ppb
0.16 ppb
0.15 ppb
0.15 ppb
0.15 ppb
0.15 ppb
O3
18.95 ppb
25.25 ppb
31.55 ppb
37.85 ppb
39.63 ppb
41.41 ppb
43.19 ppb
43.51 ppb
43.84 ppb