Hourly Weather in Petroleum County, Montana, United States
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
4 mph
Calm
5 mph
Light
6 mph
Light
7 mph
Light
8 mph
Light
10 mph
Light
9 mph
Light
10 mph
Light
11 mph
Breezy
Humidity
90%
Extremely humid
90%
Extremely humid
87%
Extremely humid
87%
Extremely humid
86%
Extremely humid
90%
Extremely humid
89%
Extremely humid
89%
Extremely humid
88%
Extremely humid
Visibility
2 mi
Low
2 mi
Low
1 mi
Low
1 mi
Low
1 mi
Low
1 mi
Low
1 mi
Low
2 mi
Low
1 mi
Low
Pressure
1008 hPa
Low
1007 hPa
Low
1006 hPa
Low
1005 hPa
Low
1003 hPa
Very low
1001 hPa
Very low
1000 hPa
Very low
999 hPa
Extremely low
999 hPa
Extremely low
Clouds
100%
100%
100%
100%
100%
100%
100%
100%
100%
Dew point
10°
11°
12°
14°
15°
17°
18°
19°
18°
UV Index
0
0
0
0
0
1
1
1
0
Air quality
50
Moderate
50
Moderate
50
Moderate
50
Moderate
50
Moderate
50
Moderate
49
Good
49
Good
48
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
0.07 μg/ft3
0.07 μg/ft3
0.07 μg/ft3
0.07 μg/ft3
0.07 μg/ft3
0.06 μg/ft3
0.06 μg/ft3
0.05 μg/ft3
0.05 μg/ft3
PM25
0.04 μg/ft3
0.04 μg/ft3
0.04 μg/ft3
0.04 μg/ft3
0.04 μg/ft3
0.04 μg/ft3
0.04 μg/ft3
0.04 μg/ft3
0.04 μg/ft3
NO2
0.3 ppb
0.4 ppb
0.4 ppb
0.5 ppb
0.5 ppb
0.5 ppb
0.5 ppb
0.5 ppb
0.5 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
53.7 ppb
53.7 ppb
53.7 ppb
53.7 ppb
53.6 ppb
53.4 ppb
53.1 ppb
52.6 ppb
52.1 ppb