Hourly Weather in Old North Saint Louis, Missouri, United States
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
9 mph
Light
9 mph
Light
7 mph
Light
6 mph
Light
5 mph
Light
6 mph
Light
6 mph
Light
6 mph
Light
6 mph
Light
Humidity
22%
Very dry
22%
Very dry
26%
Very dry
31%
Dry
35%
Dry
37%
Dry
39%
Dry
41%
Dry
44%
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
1018 hPa
High
1018 hPa
High
1018 hPa
High
1017 hPa
Normal
1016 hPa
Normal
1016 hPa
Normal
1016 hPa
Normal
1015 hPa
Normal
1014 hPa
Normal
Clouds
0%
0%
0%
0%
0%
0%
0%
0%
0%
Dew point
14°
14°
16°
16°
16°
16°
15°
15°
15°
UV Index
1
0
0
0
0
0
0
0
0
Air quality
41
Good
40
Good
40
Good
39
Good
40
Good
36
Good
39
Good
42
Good
46
Good
Pollen index
Tree
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 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
0.21 μg/ft3
0.21 μg/ft3
0.21 μg/ft3
0.21 μg/ft3
0.22 μg/ft3
0.24 μg/ft3
0.26 μg/ft3
0.28 μg/ft3
0.30 μg/ft3
PM25
0.11 μg/ft3
0.11 μg/ft3
0.11 μg/ft3
0.11 μg/ft3
0.16 μg/ft3
0.18 μg/ft3
0.20 μg/ft3
0.22 μg/ft3
0.23 μg/ft3
NO2
0.8 ppb
1.2 ppb
1.6 ppb
2.6 ppb
3.7 ppb
4.8 ppb
4.2 ppb
3.6 ppb
3 ppb
SO2
0.2 ppb
0.2 ppb
0.2 ppb
0.2 ppb
0.2 ppb
0.3 ppb
0.3 ppb
0.3 ppb
0.3 ppb
CO
0.2 ppb
0.2 ppb
0.2 ppb
0.2 ppb
0.2 ppb
0.2 ppb
0.2 ppb
0.2 ppb
0.2 ppb
O3
44.1 ppb
43.4 ppb
42.7 ppb
42.1 ppb
42.9 ppb
37.3 ppb
34.6 ppb
33 ppb
31.9 ppb