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
5 mph
Light
5 mph
Light
5 mph
Light
5 mph
Calm
5 mph
Calm
5 mph
Calm
5 mph
Calm
Humidity
77%
Extremely humid
78%
Extremely humid
79%
Extremely humid
80%
Extremely humid
80%
Extremely humid
82%
Extremely humid
82%
Extremely humid
82%
Extremely humid
82%
Extremely 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
1018 hPa
High
1018 hPa
High
1018 hPa
High
1018 hPa
High
1018 hPa
High
1019 hPa
High
1019 hPa
High
1020 hPa
High
1020 hPa
High
Clouds
0%
100%
100%
100%
100%
11%
5%
86%
13%
Dew point
34°
33°
33°
33°
33°
33°
33°
32°
32°
UV Index
0
0
0
0
0
0
0
0
0
Air quality
34
Good
36
Good
42
Good
40
Good
42
Good
45
Good
50
Moderate
53
Moderate
59
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
0.25 μg/ft3
0.26 μg/ft3
0.27 μg/ft3
0.28 μg/ft3
0.30 μg/ft3
0.33 μg/ft3
0.37 μg/ft3
0.42 μg/ft3
0.54 μg/ft3
PM25
0.25 μg/ft3
0.26 μg/ft3
0.27 μg/ft3
0.27 μg/ft3
0.30 μg/ft3
0.33 μg/ft3
0.37 μg/ft3
0.42 μg/ft3
0.54 μg/ft3
NO2
8.9 ppb
8.28 ppb
7.66 ppb
7.71 ppb
7.76 ppb
7.82 ppb
10.98 ppb
14.15 ppb
17.32 ppb
SO2
5.42 ppb
5.85 ppb
6.28 ppb
6.26 ppb
6.24 ppb
6.22 ppb
6.36 ppb
6.5 ppb
6.64 ppb
CO
0.2 ppb
0.2 ppb
0.2 ppb
0.19 ppb
0.19 ppb
0.19 ppb
0.22 ppb
0.25 ppb
0.28 ppb
O3
15.3 ppb
15.3 ppb
15.2 ppb
14.8 ppb
14.3 ppb
13.8 ppb
10.4 ppb
6.9 ppb
3.4 ppb