Hourly Weather in Jefferson, South Dakota, United States
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
8 km/h
Calm
8 km/h
Calm
11 km/h
Light
10 km/h
Light
10 km/h
Light
10 km/h
Light
9 km/h
Light
9 km/h
Light
9 km/h
Light
Humidity
98%
Extremely humid
95%
Extremely humid
90%
Extremely humid
87%
Extremely humid
79%
Extremely humid
67%
Humid
56%
Comfortable
48%
Comfortable
42%
Dry
Visibility
4 km
Low
12 km
Good
13 km
Good
15 km
Good
16 km
Good
16 km
Good
16 km
Good
16 km
Good
16 km
Good
Pressure
1012 hPa
Normal
1010 hPa
Normal
1010 hPa
Normal
1010 hPa
Normal
1010 hPa
Normal
1009 hPa
Normal
1010 hPa
Normal
1009 hPa
Normal
1009 hPa
Low
Clouds
78%
100%
94%
69%
24%
8%
4%
5%
0%
Dew point
22°
22°
22°
23°
23°
23°
23°
22°
22°
UV Index
0
0
1
2
4
6
8
9
9
Air quality
49
Good
52
Moderate
53
Moderate
54
Moderate
54
Moderate
57
Moderate
58
Moderate
45
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
4.5 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
8.4 μg/m3
8.9 μg/m3
PM25
8.7 μg/m3
9.4 μg/m3
10.3 μg/m3
10.5 μg/m3
10.9 μg/m3
12 μg/m3
12.7 μg/m3
6.9 μg/m3
7.3 μg/m3
NO2
5.5 ppb
5.5 ppb
4.5 ppb
3.4 ppb
2.2 ppb
1.8 ppb
1.3 ppb
0.9 ppb
0.8 ppb
SO2
0.5 ppb
0.4 ppb
0.4 ppb
0.3 ppb
0.3 ppb
0.3 ppb
0.3 ppb
0.3 ppb
0.4 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
15.5 ppb
18.2 ppb
22 ppb
23.2 ppb
23.2 ppb
29.9 ppb
32.7 ppb
48.9 ppb
52.6 ppb