Hourly Weather in Portal, Montana, United States
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
17 km/h
Breezy
36 km/h
Strong
12 km/h
Light
22 km/h
Breezy
10 km/h
Light
10 km/h
Light
17 km/h
Breezy
6 km/h
Calm
9 km/h
Light
Humidity
32%
Dry
40%
Dry
30%
Dry
33%
Dry
31%
Dry
20%
Very dry
17%
Extremely dry
22%
Very dry
26%
Very 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
999 hPa
Extremely low
1002 hPa
Very low
1002 hPa
Very low
1003 hPa
Very low
1003 hPa
Very low
1004 hPa
Low
1005 hPa
Low
1005 hPa
Low
1006 hPa
Low
Clouds
12%
85%
0%
0%
0%
0%
0%
2%
0%
Dew point
10°
11°
9°
9°
8°
2°
-2°
1°
3°
UV Index
3
2
1
0
0
0
0
0
0
Air quality
50
Moderate
50
Moderate
49
Good
49
Good
48
Good
47
Good
46
Good
49
Good
35
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
4 / 5
3 / 5
4 / 5
3 / 5
3 / 5
Pollutants
Low risk
High risk
PM10
16.2 μg/m3
16.2 μg/m3
16.2 μg/m3
16.2 μg/m3
16.2 μg/m3
16.2 μg/m3
16.2 μg/m3
16.2 μg/m3
5.6 μg/m3
PM25
2.9 μg/m3
3.2 μg/m3
3.8 μg/m3
4.7 μg/m3
5.7 μg/m3
6.8 μg/m3
7.8 μg/m3
8.7 μg/m3
5.3 μg/m3
NO2
0.2 ppb
0.2 ppb
0.6 ppb
1 ppb
1.5 ppb
1.9 ppb
2.4 ppb
2.9 ppb
3.5 ppb
SO2
0.1 ppb
0.1 ppb
0.1 ppb
0.1 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
53.9 ppb
53.7 ppb
53.2 ppb
52.5 ppb
51.7 ppb
50.8 ppb
50 ppb
49.3 ppb
37.4 ppb