Hourly Weather in Old North Saint Louis, Missouri, United States
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
9 mph
Light
8 mph
Light
8 mph
Light
8 mph
Light
8 mph
Light
7 mph
Light
6 mph
Light
5 mph
Light
4 mph
Calm
Humidity
78%
Extremely humid
76%
Extremely humid
77%
Extremely humid
78%
Extremely humid
78%
Extremely humid
78%
Extremely humid
80%
Extremely humid
84%
Extremely humid
85%
Extremely humid
Visibility
10 mi
Good
10 mi
Good
10 mi
Good
10 mi
Good
10 mi
Good
10 mi
Good
10 mi
Good
9 mi
Good
9 mi
Good
Pressure
1021 hPa
High
1020 hPa
High
1020 hPa
High
1020 hPa
High
1020 hPa
High
1020 hPa
High
1021 hPa
High
1022 hPa
High
1022 hPa
High
Clouds
100%
100%
100%
93%
100%
100%
100%
100%
100%
Dew point
42°
42°
42°
42°
42°
42°
42°
44°
43°
UV Index
1
1
0
0
0
0
0
0
0
Air quality
22
Good
24
Good
26
Good
26
Good
27
Good
26
Good
31
Good
37
Good
42
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
0.13 μg/ft3
0.14 μg/ft3
0.16 μg/ft3
0.16 μg/ft3
0.17 μg/ft3
0.18 μg/ft3
0.24 μg/ft3
0.29 μg/ft3
0.31 μg/ft3
PM25
0.13 μg/ft3
0.14 μg/ft3
0.16 μg/ft3
0.16 μg/ft3
0.17 μg/ft3
0.18 μg/ft3
0.24 μg/ft3
0.29 μg/ft3
0.31 μg/ft3
NO2
4.11 ppb
3.59 ppb
3.72 ppb
3.84 ppb
3.97 ppb
7.28 ppb
10.6 ppb
13.91 ppb
14.97 ppb
SO2
1.73 ppb
1.58 ppb
1.57 ppb
1.56 ppb
1.54 ppb
1.54 ppb
1.54 ppb
1.54 ppb
1.6 ppb
CO
0.18 ppb
0.17 ppb
0.17 ppb
0.17 ppb
0.17 ppb
0.2 ppb
0.23 ppb
0.26 ppb
0.27 ppb
O3
26.5 ppb
28.6 ppb
28.8 ppb
29 ppb
29.2 ppb
23.8 ppb
18.5 ppb
13.1 ppb
11.4 ppb