Hourly Weather in Helena Valley West Central, Montana, United States
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
6 mph
Light
6 mph
Light
6 mph
Light
7 mph
Light
7 mph
Light
6 mph
Light
6 mph
Light
5 mph
Light
5 mph
Calm
Humidity
83%
Extremely humid
83%
Extremely humid
83%
Extremely humid
82%
Extremely humid
81%
Extremely humid
81%
Extremely humid
81%
Extremely humid
82%
Extremely humid
84%
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
1003 hPa
Very low
1004 hPa
Very low
1004 hPa
Low
1005 hPa
Low
1005 hPa
Low
1004 hPa
Low
1004 hPa
Low
1005 hPa
Low
1005 hPa
Low
Clouds
0%
0%
2%
3%
3%
13%
17%
5%
13%
Dew point
11°
11°
11°
13°
14°
16°
17°
17°
17°
UV Index
0
0
0
0
0
0
0
0
0
Air quality
69
Moderate
71
Moderate
72
Moderate
29
Good
30
Good
30
Good
31
Good
31
Good
31
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
0.22 μg/ft3
0.21 μg/ft3
0.19 μg/ft3
0.17 μg/ft3
0.16 μg/ft3
0.15 μg/ft3
0.15 μg/ft3
0.16 μg/ft3
0.16 μg/ft3
PM25
0.58 μg/ft3
0.60 μg/ft3
0.62 μg/ft3
0.74 μg/ft3
0.69 μg/ft3
0.66 μg/ft3
0.65 μg/ft3
0.67 μg/ft3
0.69 μg/ft3
NO2
9.21 ppb
8.8 ppb
8.37 ppb
10.3 ppb
9.4 ppb
8.5 ppb
7.7 ppb
10.1 ppb
12.6 ppb
SO2
0.98 ppb
1.01 ppb
1.05 ppb
1.5 ppb
1.4 ppb
1.4 ppb
1.3 ppb
1.3 ppb
1.4 ppb
CO
0.2 ppb
0.2 ppb
0.2 ppb
0.2 ppb
0.2 ppb
0.2 ppb
0.2 ppb
0.2 ppb
0.2 ppb
O3
17.3 ppb
17.6 ppb
17.9 ppb
28.5 ppb
29.7 ppb
30.2 ppb
31.3 ppb
31.4 ppb
30.8 ppb