Hourly Weather in Halfmoon, Montana, United States
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
7 km/h
Calm
11 km/h
Light
11 km/h
Light
12 km/h
Light
14 km/h
Light
17 km/h
Breezy
22 km/h
Breezy
23 km/h
Breezy
23 km/h
Breezy
Humidity
38%
Dry
34%
Dry
31%
Dry
30%
Dry
26%
Very dry
22%
Very dry
17%
Extremely dry
15%
Extremely dry
15%
Extremely dry
Visibility
8 km
Fair
6 km
Fair
6 km
Fair
7 km
Fair
7 km
Fair
8 km
Fair
10 km
Fair
13 km
Good
16 km
Good
Pressure
1013 hPa
Normal
1013 hPa
Normal
1012 hPa
Normal
1012 hPa
Normal
1011 hPa
Normal
1011 hPa
Normal
1010 hPa
Normal
1010 hPa
Normal
1009 hPa
Low
Clouds
0%
0%
0%
0%
0%
0%
0%
0%
0%
Dew point
6°
6°
6°
6°
6°
4°
2°
1°
1°
UV Index
4
6
8
9
9
8
6
4
2
Air quality
93
Moderate
93
Moderate
91
Moderate
91
Moderate
90
Moderate
37
Good
37
Good
38
Good
39
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
2 / 5
2 / 5
2 / 5
3 / 5
3 / 5
3 / 5
3 / 5
3 / 5
3 / 5
Pollutants
Low risk
High risk
PM10
35.6 μg/m3
35.6 μg/m3
35.6 μg/m3
35.6 μg/m3
35.6 μg/m3
4.3 μg/m3
3.4 μg/m3
2.7 μg/m3
2.2 μg/m3
PM25
31.4 μg/m3
31 μg/m3
30.4 μg/m3
30 μg/m3
29.5 μg/m3
4.2 μg/m3
3.3 μg/m3
2.6 μg/m3
2.1 μg/m3
NO2
0.9 ppb
0.6 ppb
0.3 ppb
0.2 ppb
0.2 ppb
0.2 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
29.2 ppb
30.5 ppb
31.8 ppb
33.1 ppb
34.2 ppb
39.6 ppb
40 ppb
40.7 ppb
41.6 ppb