Hourly Weather in National Park Service Headquarters, United States
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
6 mph
Light
6 mph
Light
7 mph
Light
8 mph
Light
7 mph
Light
7 mph
Light
9 mph
Light
10 mph
Breezy
11 mph
Breezy
Humidity
81%
Extremely humid
84%
Extremely humid
86%
Extremely humid
88%
Extremely humid
87%
Extremely humid
88%
Extremely humid
90%
Extremely humid
90%
Extremely humid
88%
Extremely humid
Visibility
10 mi
Good
8 mi
Good
8 mi
Good
4 mi
Fair
8 mi
Good
8 mi
Good
4 mi
Fair
3 mi
Fair
8 mi
Good
Pressure
1013 hPa
Normal
1013 hPa
Normal
1012 hPa
Normal
1012 hPa
Normal
1011 hPa
Normal
1010 hPa
Normal
1009 hPa
Normal
1009 hPa
Normal
1008 hPa
Low
Clouds
100%
100%
100%
100%
100%
100%
100%
100%
100%
Dew point
50°
49°
49°
48°
47°
46°
46°
46°
42°
UV Index
0
0
0
0
0
0
0
0
0
Air quality
56
Moderate
56
Moderate
56
Moderate
56
Moderate
55
Moderate
54
Moderate
52
Moderate
51
Moderate
45
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
0.34 μg/ft3
0.35 μg/ft3
0.34 μg/ft3
0.34 μg/ft3
0.33 μg/ft3
0.30 μg/ft3
0.28 μg/ft3
0.26 μg/ft3
0.23 μg/ft3
PM25
0.33 μg/ft3
0.33 μg/ft3
0.33 μg/ft3
0.33 μg/ft3
0.32 μg/ft3
0.30 μg/ft3
0.28 μg/ft3
0.26 μg/ft3
0.23 μg/ft3
NO2
16.5 ppb
15.2 ppb
12.9 ppb
10.6 ppb
8.3 ppb
7.8 ppb
7.3 ppb
6.9 ppb
7 ppb
SO2
2.7 ppb
2.9 ppb
2.7 ppb
2.5 ppb
2.4 ppb
2.3 ppb
2.2 ppb
2.1 ppb
2.1 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
18.6 ppb
19.8 ppb
21.6 ppb
23.8 ppb
26.5 ppb
27.6 ppb
27.9 ppb
27.9 ppb
28.3 ppb