Hourly Weather in Simpson, Montana, United States
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
30 km/h
Breezy
19 km/h
Breezy
13 km/h
Light
12 km/h
Light
10 km/h
Light
9 km/h
Light
10 km/h
Light
12 km/h
Light
8 km/h
Light
Humidity
14%
Extremely dry
18%
Extremely dry
21%
Very dry
25%
Very dry
26%
Very dry
28%
Very dry
28%
Very dry
30%
Dry
31%
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
1002 hPa
Very low
1003 hPa
Very low
1004 hPa
Very low
1005 hPa
Low
1005 hPa
Low
1005 hPa
Low
1006 hPa
Low
1006 hPa
Low
1006 hPa
Low
Clouds
0%
0%
0%
0%
0%
0%
0%
0%
0%
Dew point
3°
5°
6°
6°
6°
5°
5°
5°
5°
UV Index
1
0
0
0
0
0
0
0
0
Air quality
77
Moderate
77
Moderate
76
Moderate
76
Moderate
75
Moderate
37
Good
35
Good
34
Good
34
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
4 / 5
3 / 5
3 / 5
4 / 5
4 / 5
4 / 5
4 / 5
4 / 5
4 / 5
Pollutants
Low risk
High risk
PM10
8 μg/m3
7.4 μg/m3
30.2 μg/m3
30.2 μg/m3
30.2 μg/m3
5.1 μg/m3
4.8 μg/m3
4.7 μg/m3
4.7 μg/m3
PM25
22.9 μg/m3
22.7 μg/m3
22.4 μg/m3
22.2 μg/m3
22 μg/m3
5 μg/m3
4.7 μg/m3
4.5 μg/m3
4.5 μg/m3
NO2
0.6 ppb
0.9 ppb
1.2 ppb
1.5 ppb
1.8 ppb
1.6 ppb
1.6 ppb
1.6 ppb
1.7 ppb
SO2
0.1 ppb
0.1 ppb
0.2 ppb
0.2 ppb
0.2 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
53.3 ppb
53.5 ppb
53.8 ppb
54 ppb
54.3 ppb
39.8 ppb
38.1 ppb
37 ppb
36.2 ppb