Hourly Weather in Roundup, Montana, United States
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
18 km/h
Breezy
21 km/h
Breezy
22 km/h
Breezy
29 km/h
Breezy
31 km/h
Breezy
27 km/h
Breezy
30 km/h
Breezy
23 km/h
Breezy
18 km/h
Breezy
Humidity
27%
Very dry
24%
Very dry
21%
Very dry
18%
Extremely dry
16%
Extremely dry
16%
Extremely dry
13%
Extremely dry
15%
Extremely dry
15%
Extremely dry
Visibility
16 km
Good
16 km
Good
16 km
Good
16 km
Good
16 km
Good
16 km
Good
16 km
Good
16 km
Good
16 km
Good
Pressure
1008 hPa
Low
1007 hPa
Low
1006 hPa
Low
1005 hPa
Low
1005 hPa
Low
1005 hPa
Low
1004 hPa
Low
1004 hPa
Very low
1003 hPa
Very low
Clouds
0%
0%
0%
0%
0%
0%
0%
0%
0%
Dew point
10°
9°
9°
7°
6°
7°
4°
6°
6°
UV Index
6
7
9
8
7
5
3
2
1
Air quality
43
Good
44
Good
47
Good
49
Good
50
Moderate
46
Good
46
Good
46
Good
45
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
20.5 μg/m3
20.5 μg/m3
20.5 μg/m3
20.5 μg/m3
20.5 μg/m3
8.8 μg/m3
8 μg/m3
7.6 μg/m3
7.5 μg/m3
PM25
7.6 μg/m3
7.9 μg/m3
8.3 μg/m3
8.7 μg/m3
9 μg/m3
8 μg/m3
7.3 μg/m3
7 μg/m3
6.9 μg/m3
NO2
0.6 ppb
0.2 ppb
0.2 ppb
0.2 ppb
0.1 ppb
0.2 ppb
0.2 ppb
0.2 ppb
0.6 ppb
SO2
0.1 ppb
0.1 ppb
0.1 ppb
0.1 ppb
0.1 ppb
0.2 ppb
0.2 ppb
0.2 ppb
0.2 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
35.6 ppb
37.4 ppb
39.2 ppb
41 ppb
42.6 ppb
49.1 ppb
49.3 ppb
49.3 ppb
48 ppb