Hourly Weather in Johnston, Arkansas, United States
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
9 km/h
Light
11 km/h
Light
13 km/h
Light
10 km/h
Light
9 km/h
Light
10 km/h
Light
10 km/h
Light
13 km/h
Light
14 km/h
Light
Humidity
76%
Extremely humid
64%
Humid
52%
Comfortable
45%
Comfortable
40%
Dry
38%
Dry
35%
Dry
35%
Dry
33%
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
1015 hPa
Normal
1015 hPa
Normal
1015 hPa
Normal
1015 hPa
Normal
1014 hPa
Normal
1013 hPa
Normal
1013 hPa
Normal
1012 hPa
Normal
1012 hPa
Normal
Clouds
1%
0%
0%
1%
7%
8%
2%
10%
3%
Dew point
23°
22°
21°
19°
19°
18°
18°
19°
18°
UV Index
1
2
5
7
9
10
9
7
5
Air quality
61
Moderate
61
Moderate
62
Moderate
63
Moderate
52
Moderate
50
Moderate
50
Moderate
49
Good
49
Good
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
16.1 μg/m3
15.1 μg/m3
13.7 μg/m3
48.5 μg/m3
11.9 μg/m3
11.6 μg/m3
11.3 μg/m3
11.1 μg/m3
11 μg/m3
PM25
14.1 μg/m3
14.5 μg/m3
14.9 μg/m3
15.5 μg/m3
9.4 μg/m3
9 μg/m3
8.8 μg/m3
8.7 μg/m3
8.6 μg/m3
NO2
1.4 ppb
1.1 ppb
0.7 ppb
0.5 ppb
0.4 ppb
0.3 ppb
0.2 ppb
0.2 ppb
0.2 ppb
SO2
0.6 ppb
0.5 ppb
0.5 ppb
0.5 ppb
0.4 ppb
0.4 ppb
0.4 ppb
0.4 ppb
0.4 ppb
CO
0.1 ppb
0.1 ppb
0.1 ppb
0.1 ppb
0.1 ppb
0.1 ppb
0.1 ppb
0.1 ppb
0.1 ppb
O3
18.4 ppb
21.9 ppb
25.7 ppb
31.8 ppb
41.1 ppb
43.4 ppb
44.8 ppb
45.8 ppb
46.6 ppb