Hourly Weather in Riderwood, Maryland, United States
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
8 mph
Light
8 mph
Light
9 mph
Light
11 mph
Breezy
13 mph
Breezy
8 mph
Light
7 mph
Light
7 mph
Light
10 mph
Breezy
Humidity
55%
Comfortable
48%
Comfortable
43%
Dry
42%
Dry
47%
Comfortable
58%
Comfortable
62%
Humid
66%
Humid
70%
Humid
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
1001 hPa
Very low
1001 hPa
Very low
1000 hPa
Very low
1000 hPa
Extremely low
1000 hPa
Extremely low
1000 hPa
Very low
1000 hPa
Very low
1001 hPa
Very low
1002 hPa
Very low
Clouds
2%
2%
30%
27%
55%
64%
34%
46%
71%
Dew point
59°
56°
55°
54°
55°
58°
60°
59°
57°
UV Index
7
8
7
5
1
1
1
0
0
Air quality
41
Good
44
Good
47
Good
47
Good
47
Good
46
Good
45
Good
44
Good
45
Good
Pollen index
Tree
2 / 5
2 / 5
4 / 5
4 / 5
5 / 5
4 / 5
4 / 5
4 / 5
3 / 5
Weed
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
Grass
1 / 5
1 / 5
1 / 5
1 / 5
1 / 5
1 / 5
1 / 5
1 / 5
1 / 5
Pollutants
Low risk
High risk
PM10
0.30 μg/ft3
0.33 μg/ft3
0.36 μg/ft3
0.38 μg/ft3
0.38 μg/ft3
0.41 μg/ft3
0.44 μg/ft3
0.44 μg/ft3
0.46 μg/ft3
PM25
0.21 μg/ft3
0.23 μg/ft3
0.24 μg/ft3
0.26 μg/ft3
0.26 μg/ft3
0.28 μg/ft3
0.30 μg/ft3
0.30 μg/ft3
0.32 μg/ft3
NO2
1.17 ppb
0.95 ppb
0.73 ppb
0.93 ppb
1.14 ppb
1.34 ppb
2.5 ppb
3.65 ppb
4.81 ppb
SO2
1.72 ppb
1.63 ppb
1.54 ppb
1.38 ppb
1.21 ppb
1.05 ppb
1.09 ppb
1.14 ppb
1.18 ppb
CO
0.15 ppb
0.14 ppb
0.13 ppb
0.13 ppb
0.13 ppb
0.13 ppb
0.14 ppb
0.16 ppb
0.17 ppb
O3
49.41 ppb
51.48 ppb
53.55 ppb
51.66 ppb
49.78 ppb
47.89 ppb
44.97 ppb
42.06 ppb
39.14 ppb