Hourly Weather in Prince William County, Virginia, United States
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
4 mph
Calm
4 mph
Calm
3 mph
Calm
3 mph
Calm
2 mph
Calm
1 mph
Calm
1 mph
Calm
0 mph
Calm
0 mph
Calm
Humidity
77%
Extremely humid
76%
Extremely humid
76%
Extremely humid
77%
Extremely humid
77%
Extremely humid
77%
Extremely humid
79%
Extremely humid
80%
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
1017 hPa
Normal
1018 hPa
Normal
1018 hPa
High
1018 hPa
High
1018 hPa
High
1018 hPa
High
1018 hPa
High
1019 hPa
High
1019 hPa
High
Clouds
51%
80%
100%
100%
100%
98%
96%
95%
2%
Dew point
41°
40°
39°
38°
38°
38°
38°
37°
37°
UV Index
0
0
0
0
0
0
0
0
0
Air quality
68
Moderate
80
Moderate
92
Moderate
99
Moderate
103
Unhealthy for sensitive groups
102
Unhealthy for sensitive groups
99
Moderate
95
Moderate
91
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
0.73 μg/ft3
0.89 μg/ft3
1.03 μg/ft3
1.08 μg/ft3
1.07 μg/ft3
1.01 μg/ft3
0.93 μg/ft3
0.88 μg/ft3
0.83 μg/ft3
PM25
0.73 μg/ft3
0.89 μg/ft3
1.03 μg/ft3
1.08 μg/ft3
1.07 μg/ft3
1.01 μg/ft3
0.93 μg/ft3
0.87 μg/ft3
0.83 μg/ft3
NO2
27.84 ppb
27.69 ppb
27.54 ppb
26.87 ppb
26.2 ppb
25.53 ppb
25.19 ppb
24.84 ppb
24.49 ppb
SO2
5.49 ppb
5.83 ppb
6.16 ppb
5.97 ppb
5.77 ppb
5.58 ppb
5.45 ppb
5.31 ppb
5.18 ppb
CO
0.5 ppb
0.58 ppb
0.67 ppb
0.67 ppb
0.67 ppb
0.67 ppb
0.62 ppb
0.58 ppb
0.53 ppb
O3
1 ppb
0.6 ppb
0.2 ppb
0.1 ppb
0.1 ppb
N/A
N/A
N/A
N/A