Daily Weather in Portal, Montana, United States
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
12 mph
Breezy
15 mph
Breezy
7 mph
Light
13 mph
Breezy
13 mph
Breezy
8 mph
Light
11 mph
Breezy
13 mph
Breezy
7 mph
Light
Humidity
67%
Humid
93%
Extremely humid
94%
Extremely humid
91%
Extremely humid
83%
Extremely humid
55%
Comfortable
62%
Humid
96%
Extremely humid
96%
Extremely humid
Visibility
10 mi
Good
10 mi
Good
10 mi
Good
10 mi
Good
10 mi
Good
10 mi
Good
10 mi
Good
10 mi
Good
10 mi
Good
Pressure
1024 hPa
High
1015 hPa
Normal
1016 hPa
Normal
1019 hPa
High
1020 hPa
High
1021 hPa
High
1022 hPa
High
1021 hPa
High
1014 hPa
Normal
Clouds
47%
100%
100%
100%
39%
99%
100%
100%
58%
Dew point
20°
39°
40°
33°
26°
23°
28°
37°
35°
UV Index
5
6
3
1
0
Air quality
47
Good
50
Moderate
48
Good
42
Good
Pollen index
Tree
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
Weed
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
Grass
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
Pollutants
Low risk
High risk
PM10
0.30 μg/ft3
0.30 μg/ft3
0.29 μg/ft3
0.13 μg/ft3
0.08 μg/ft3
PM25
0.21 μg/ft3
0.25 μg/ft3
0.24 μg/ft3
0.10 μg/ft3
0.07 μg/ft3
NO2
1.6 ppb
1.4 ppb
1.4 ppb
1.3 ppb
1.4 ppb
SO2
0.5 ppb
0.5 ppb
0.2 ppb
N/A
N/A
CO
0.1 ppb
0.1 ppb
0.1 ppb
0.1 ppb
0.1 ppb
O3
51 ppb
53.8 ppb
48.2 ppb
45.6 ppb
25.7 ppb