Hourly Weather in Chelsea, Montana, United States
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
0 km/h
Calm
8 km/h
Light
4 km/h
Calm
5 km/h
Calm
3 km/h
Calm
5 km/h
Calm
6 km/h
Calm
3 km/h
Calm
7 km/h
Calm
Humidity
87%
Extremely humid
84%
Extremely humid
85%
Extremely humid
85%
Extremely humid
88%
Extremely humid
89%
Extremely humid
90%
Extremely humid
83%
Extremely humid
61%
Humid
Visibility
14 km
Good
15 km
Good
14 km
Good
14 km
Good
12 km
Good
12 km
Good
14 km
Good
16 km
Good
16 km
Good
Pressure
1007 hPa
Low
1005 hPa
Low
1005 hPa
Low
1006 hPa
Low
1006 hPa
Low
1006 hPa
Low
1006 hPa
Low
1006 hPa
Low
1007 hPa
Low
Clouds
7%
2%
5%
5%
25%
14%
8%
16%
2%
Dew point
17°
18°
17°
17°
16°
16°
17°
17°
16°
UV Index
0
0
0
0
0
0
0
1
3
Air quality
79
Moderate
79
Moderate
78
Moderate
77
Moderate
76
Moderate
76
Moderate
75
Moderate
59
Moderate
59
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
3 / 5
3 / 5
3 / 5
3 / 5
2 / 5
2 / 5
2 / 5
2 / 5
3 / 5
Pollutants
Low risk
High risk
PM10
15.5 μg/m3
15.7 μg/m3
15.9 μg/m3
15.9 μg/m3
53.9 μg/m3
53.9 μg/m3
53.9 μg/m3
13.7 μg/m3
13.5 μg/m3
PM25
23.8 μg/m3
23.6 μg/m3
23.3 μg/m3
22.9 μg/m3
22.5 μg/m3
22.2 μg/m3
21.9 μg/m3
13.4 μg/m3
13.2 μg/m3
NO2
5.2 ppb
5.8 ppb
6.3 ppb
6.5 ppb
6.6 ppb
6.8 ppb
5.1 ppb
3 ppb
1.8 ppb
SO2
0.2 ppb
0.2 ppb
0.3 ppb
0.3 ppb
0.3 ppb
0.2 ppb
0.2 ppb
0.2 ppb
0.1 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
38.4 ppb
39.6 ppb
41.3 ppb
43.3 ppb
45.3 ppb
47.2 ppb
48.9 ppb
27.1 ppb
29 ppb