Hourly Weather in Chester County, Pennsylvania, United States
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
3 km/h
Calm
4 km/h
Calm
6 km/h
Calm
5 km/h
Calm
5 km/h
Calm
4 km/h
Calm
4 km/h
Calm
3 km/h
Calm
2 km/h
Calm
Humidity
63%
Humid
68%
Humid
79%
Extremely humid
81%
Extremely humid
81%
Extremely humid
83%
Extremely humid
83%
Extremely humid
85%
Extremely humid
87%
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
15 km
Good
Pressure
1010 hPa
Normal
1010 hPa
Normal
1011 hPa
Normal
1010 hPa
Normal
1010 hPa
Normal
1010 hPa
Normal
1010 hPa
Normal
1011 hPa
Normal
1010 hPa
Normal
Clouds
82%
12%
3%
0%
11%
55%
26%
6%
7%
Dew point
15°
16°
18°
18°
17°
17°
17°
17°
18°
UV Index
0
0
0
0
0
0
0
0
0
Air quality
43
Good
43
Good
44
Good
44
Good
44
Good
47
Good
61
Moderate
62
Moderate
62
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
10.8 μg/m3
10.8 μg/m3
10.8 μg/m3
10.8 μg/m3
10.8 μg/m3
11.9 μg/m3
15.2 μg/m3
15.7 μg/m3
16 μg/m3
PM25
6.5 μg/m3
6.5 μg/m3
6.6 μg/m3
6.7 μg/m3
6.8 μg/m3
6.9 μg/m3
14.4 μg/m3
14.7 μg/m3
15.1 μg/m3
NO2
4 ppb
4.1 ppb
4.2 ppb
4.2 ppb
4.5 ppb
4.9 ppb
5 ppb
5 ppb
5.1 ppb
SO2
0.4 ppb
0.4 ppb
0.4 ppb
0.4 ppb
0.4 ppb
0.4 ppb
0.4 ppb
0.4 ppb
0.4 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
46.5 ppb
46.8 ppb
47.1 ppb
47.5 ppb
47.9 ppb
50.1 ppb
37 ppb
36 ppb
35.3 ppb