Hourly Weather in Saint Denis, Maryland, United States
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
5 mph
Light
5 mph
Light
5 mph
Light
5 mph
Light
5 mph
Light
6 mph
Light
6 mph
Light
6 mph
Light
6 mph
Light
Humidity
82%
Extremely humid
83%
Extremely humid
84%
Extremely humid
85%
Extremely humid
85%
Extremely humid
84%
Extremely humid
84%
Extremely humid
84%
Extremely humid
84%
Extremely humid
Visibility
10 mi
Good
9 mi
Good
9 mi
Good
9 mi
Good
9 mi
Good
9 mi
Good
9 mi
Good
9 mi
Good
9 mi
Good
Pressure
1019 hPa
High
1019 hPa
High
1019 hPa
High
1018 hPa
High
1018 hPa
High
1018 hPa
High
1018 hPa
High
1017 hPa
Normal
1017 hPa
Normal
Clouds
100%
100%
100%
100%
100%
94%
100%
100%
100%
Dew point
46°
45°
45°
45°
44°
44°
44°
44°
44°
UV Index
0
0
0
0
0
0
0
0
0
Air quality
60
Moderate
62
Moderate
62
Moderate
61
Moderate
60
Moderate
59
Moderate
58
Moderate
58
Moderate
58
Moderate
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
0.51 μg/ft3
0.52 μg/ft3
0.50 μg/ft3
0.48 μg/ft3
0.46 μg/ft3
0.44 μg/ft3
0.43 μg/ft3
0.43 μg/ft3
0.43 μg/ft3
PM25
0.51 μg/ft3
0.51 μg/ft3
0.49 μg/ft3
0.47 μg/ft3
0.45 μg/ft3
0.44 μg/ft3
0.43 μg/ft3
0.42 μg/ft3
0.43 μg/ft3
NO2
5.65 ppb
5.38 ppb
4.63 ppb
3.88 ppb
3.14 ppb
2.92 ppb
2.71 ppb
2.49 ppb
2.6 ppb
SO2
8.35 ppb
8.57 ppb
7.47 ppb
6.37 ppb
5.27 ppb
4.75 ppb
4.23 ppb
3.71 ppb
3.62 ppb
CO
0.35 ppb
0.35 ppb
0.33 ppb
0.3 ppb
0.27 ppb
0.25 ppb
0.24 ppb
0.23 ppb
0.23 ppb
O3
28.5 ppb
28.8 ppb
30.4 ppb
32 ppb
33.5 ppb
33.1 ppb
32.6 ppb
32.1 ppb
31.6 ppb