Hourly Weather in Halley Estates, Maryland, United States
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
3 km/h
Calm
5 km/h
Calm
8 km/h
Light
6 km/h
Calm
6 km/h
Calm
5 km/h
Calm
6 km/h
Calm
5 km/h
Calm
4 km/h
Calm
Humidity
49%
Comfortable
49%
Comfortable
49%
Comfortable
60%
Humid
69%
Humid
71%
Extremely humid
74%
Extremely humid
76%
Extremely humid
78%
Extremely humid
Visibility
16 km
Good
16 km
Good
16 km
Good
16 km
Good
16 km
Good
16 km
Good
16 km
Good
16 km
Good
16 km
Good
Pressure
1016 hPa
Normal
1016 hPa
Normal
1016 hPa
Normal
1015 hPa
Normal
1015 hPa
Normal
1015 hPa
Normal
1015 hPa
Normal
1015 hPa
Normal
1014 hPa
Normal
Clouds
18%
8%
6%
2%
0%
0%
0%
6%
0%
Dew point
15°
15°
14°
16°
17°
17°
17°
17°
17°
UV Index
2
1
0
0
0
0
0
0
0
Air quality
42
Good
43
Good
43
Good
43
Good
52
Moderate
52
Moderate
53
Moderate
52
Moderate
52
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
5.4 μg/m3
5.4 μg/m3
5.4 μg/m3
5.4 μg/m3
12.5 μg/m3
12.3 μg/m3
12.4 μg/m3
12.1 μg/m3
11.1 μg/m3
PM25
3.1 μg/m3
3 μg/m3
2.8 μg/m3
2.7 μg/m3
9.8 μg/m3
9.8 μg/m3
9.9 μg/m3
9.9 μg/m3
9.5 μg/m3
NO2
0.7 ppb
1.1 ppb
1.5 ppb
1.9 ppb
2.2 ppb
2.8 ppb
3.5 ppb
3.8 ppb
4.1 ppb
SO2
0.2 ppb
0.2 ppb
0.2 ppb
0.2 ppb
0.1 ppb
0.1 ppb
0.1 ppb
0.1 ppb
0.1 ppb
CO
0.1 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
45.7 ppb
45.9 ppb
46.1 ppb
46.2 ppb
40.9 ppb
35.7 ppb
30.8 ppb
26.9 ppb
23.1 ppb