Hourly Weather in Arpan, South Dakota, United States
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
8 km/h
Light
6 km/h
Calm
4 km/h
Calm
7 km/h
Calm
9 km/h
Light
8 km/h
Calm
6 km/h
Calm
5 km/h
Calm
8 km/h
Calm
Humidity
93%
Extremely humid
73%
Extremely humid
55%
Comfortable
42%
Dry
31%
Dry
26%
Very dry
23%
Very dry
22%
Very dry
22%
Very 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
1011 hPa
Normal
1010 hPa
Normal
1010 hPa
Normal
1009 hPa
Low
1009 hPa
Low
1008 hPa
Low
1008 hPa
Low
1008 hPa
Low
1007 hPa
Low
Clouds
29%
3%
7%
100%
100%
48%
76%
98%
50%
Dew point
21°
20°
18°
16°
13°
11°
10°
10°
10°
UV Index
1
2
3
5
8
8
7
5
4
Air quality
59
Moderate
59
Moderate
60
Moderate
60
Moderate
61
Moderate
61
Moderate
62
Moderate
62
Moderate
50
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
5 / 5
5 / 5
5 / 5
5 / 5
5 / 5
5 / 5
5 / 5
5 / 5
5 / 5
Pollutants
Low risk
High risk
PM10
16.2 μg/m3
16.2 μg/m3
16.2 μg/m3
16.2 μg/m3
16.2 μg/m3
16.2 μg/m3
16.2 μg/m3
16.2 μg/m3
11.6 μg/m3
PM25
13.3 μg/m3
13.4 μg/m3
13.6 μg/m3
13.8 μg/m3
14.1 μg/m3
14.4 μg/m3
14.7 μg/m3
14.9 μg/m3
7.3 μg/m3
NO2
2.5 ppb
1.7 ppb
1.3 ppb
0.8 ppb
0.3 ppb
0.3 ppb
0.2 ppb
0.2 ppb
0.2 ppb
SO2
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
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
47.5 ppb
47.7 ppb
48.2 ppb
48.9 ppb
49.6 ppb
50.5 ppb
51.2 ppb
51.9 ppb
54.2 ppb