Hourly Weather in Merrifield, Virginia, United States
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
11 km/h
Light
11 km/h
Light
13 km/h
Light
12 km/h
Light
13 km/h
Light
11 km/h
Light
13 km/h
Light
11 km/h
Light
11 km/h
Light
Humidity
44%
Dry
37%
Dry
34%
Dry
32%
Dry
32%
Dry
31%
Dry
41%
Dry
37%
Dry
43%
Dry
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
1022 hPa
High
1022 hPa
High
1021 hPa
High
1020 hPa
High
1020 hPa
High
1020 hPa
High
1020 hPa
High
1020 hPa
High
1020 hPa
High
Clouds
100%
100%
100%
100%
100%
100%
100%
100%
100%
Dew point
12°
11°
10°
10°
9°
9°
13°
11°
12°
UV Index
7
7
6
5
4
2
1
0
0
Air quality
38
Good
39
Good
39
Good
42
Good
46
Good
60
Moderate
58
Moderate
55
Moderate
53
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
9.7 μg/m3
9.7 μg/m3
9.7 μg/m3
9.7 μg/m3
9.7 μg/m3
9.9 μg/m3
9.6 μg/m3
9.2 μg/m3
9.1 μg/m3
PM25
6.8 μg/m3
6.9 μg/m3
7 μg/m3
7.2 μg/m3
7.3 μg/m3
8.3 μg/m3
7.9 μg/m3
7.5 μg/m3
7.4 μg/m3
NO2
1.6 ppb
1.3 ppb
1.1 ppb
1.2 ppb
1.2 ppb
1.3 ppb
1.7 ppb
2.2 ppb
2.7 ppb
SO2
0.6 ppb
0.6 ppb
0.5 ppb
0.4 ppb
0.4 ppb
0.3 ppb
0.3 ppb
0.3 ppb
0.3 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
29.6 ppb
34.6 ppb
39.8 ppb
44.8 ppb
49.2 ppb
67.3 ppb
64.5 ppb
60.8 ppb
57.4 ppb