Hourly Weather in Castle Rock, South Dakota, United States
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
14 km/h
Light
17 km/h
Breezy
11 km/h
Light
13 km/h
Light
14 km/h
Light
16 km/h
Breezy
16 km/h
Breezy
16 km/h
Light
12 km/h
Light
Humidity
75%
Extremely humid
57%
Comfortable
65%
Humid
65%
Humid
74%
Extremely humid
77%
Extremely humid
87%
Extremely humid
87%
Extremely humid
87%
Extremely humid
Visibility
14 km
Good
16 km
Good
16 km
Good
16 km
Good
16 km
Good
16 km
Good
15 km
Good
15 km
Good
15 km
Good
Pressure
1009 hPa
Low
1008 hPa
Low
1008 hPa
Low
1008 hPa
Low
1009 hPa
Low
1009 hPa
Low
1009 hPa
Low
1009 hPa
Low
1008 hPa
Low
Clouds
100%
100%
94%
73%
21%
2%
100%
100%
100%
Dew point
21°
18°
19°
18°
19°
19°
20°
20°
20°
UV Index
0
0
0
0
0
0
0
0
0
Air quality
62
Moderate
62
Moderate
61
Moderate
61
Moderate
61
Moderate
60
Moderate
59
Moderate
59
Moderate
27
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
5 / 5
5 / 5
5 / 5
5 / 5
5 / 5
5 / 5
5 / 5
5 / 5
5 / 5
Pollutants
Low risk
High risk
PM10
12.9 μg/m3
12.9 μg/m3
12.9 μg/m3
12.9 μg/m3
12.9 μg/m3
12.9 μg/m3
12.9 μg/m3
12.9 μg/m3
5.1 μg/m3
PM25
14.9 μg/m3
14.8 μg/m3
14.6 μg/m3
14.4 μg/m3
14.1 μg/m3
13.8 μg/m3
13.5 μg/m3
13.2 μg/m3
4.8 μg/m3
NO2
0.4 ppb
0.6 ppb
0.8 ppb
1 ppb
1.3 ppb
1.6 ppb
1.8 ppb
2.3 ppb
3.4 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
51.8 ppb
51.8 ppb
51.8 ppb
51.8 ppb
51.8 ppb
51.8 ppb
51.9 ppb
51.9 ppb
23.6 ppb