Hourly Weather in Chelsea, Montana, United States
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
15 mph
Breezy
15 mph
Breezy
13 mph
Breezy
11 mph
Breezy
11 mph
Breezy
10 mph
Light
9 mph
Light
9 mph
Light
8 mph
Light
Humidity
33%
Dry
45%
Comfortable
53%
Comfortable
59%
Comfortable
67%
Humid
71%
Extremely humid
75%
Extremely humid
79%
Extremely humid
83%
Extremely humid
Visibility
10 mi
Good
10 mi
Good
10 mi
Good
10 mi
Good
10 mi
Good
10 mi
Good
10 mi
Good
10 mi
Good
10 mi
Good
Pressure
1011 hPa
Normal
1014 hPa
Normal
1014 hPa
Normal
1014 hPa
Normal
1013 hPa
Normal
1013 hPa
Normal
1012 hPa
Normal
1011 hPa
Normal
1011 hPa
Normal
Clouds
0%
0%
0%
0%
0%
0%
0%
0%
0%
Dew point
30°
32°
33°
33°
33°
33°
33°
32°
32°
UV Index
0
0
0
0
0
0
0
0
0
Air quality
46
Good
46
Good
45
Good
45
Good
45
Good
44
Good
44
Good
30
Good
28
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
0.09 μg/ft3
0.07 μg/ft3
0.06 μg/ft3
0.05 μg/ft3
0.34 μg/ft3
0.34 μg/ft3
0.34 μg/ft3
0.04 μg/ft3
0.04 μg/ft3
PM25
0.15 μg/ft3
0.15 μg/ft3
0.15 μg/ft3
0.16 μg/ft3
0.16 μg/ft3
0.16 μg/ft3
0.17 μg/ft3
0.03 μg/ft3
0.04 μg/ft3
NO2
0.4 ppb
0.6 ppb
0.7 ppb
0.8 ppb
0.8 ppb
0.9 ppb
1.1 ppb
1.5 ppb
1.7 ppb
SO2
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
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
49.5 ppb
49.2 ppb
48.9 ppb
48.5 ppb
48.1 ppb
47.7 ppb
47.4 ppb
32.8 ppb
29.7 ppb