Hourly Weather in Helena Valley Northwest, Montana, United States
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
20 mph
Breezy
12 mph
Breezy
8 mph
Light
8 mph
Light
6 mph
Light
5 mph
Calm
3 mph
Calm
2 mph
Calm
3 mph
Calm
Humidity
46%
Comfortable
51%
Comfortable
52%
Comfortable
53%
Comfortable
56%
Comfortable
65%
Humid
72%
Extremely humid
80%
Extremely humid
78%
Extremely humid
Visibility
10 mi
Good
10 mi
Good
10 mi
Good
10 mi
Good
10 mi
Good
10 mi
Good
6 mi
Good
5 mi
Fair
4 mi
Fair
Pressure
1008 hPa
Low
1010 hPa
Normal
1010 hPa
Normal
1010 hPa
Normal
1011 hPa
Normal
1012 hPa
Normal
1013 hPa
Normal
1014 hPa
Normal
1015 hPa
Normal
Clouds
100%
100%
100%
100%
100%
100%
100%
100%
100%
Dew point
29°
29°
29°
30°
30°
31°
32°
34°
33°
UV Index
2
1
0
0
0
0
0
0
0
Air quality
40
Good
40
Good
41
Good
41
Good
41
Good
41
Good
41
Good
41
Good
41
Good
Pollen index
Tree
5 / 5
5 / 5
5 / 5
5 / 5
5 / 5
5 / 5
5 / 5
4 / 5
3 / 5
Weed
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
Grass
1 / 5
1 / 5
1 / 5
1 / 5
1 / 5
1 / 5
1 / 5
1 / 5
1 / 5
Pollutants
Low risk
High risk
PM10
0.04 μg/ft3
0.04 μg/ft3
0.03 μg/ft3
0.03 μg/ft3
0.03 μg/ft3
0.03 μg/ft3
0.03 μg/ft3
0.03 μg/ft3
0.03 μg/ft3
PM25
0.03 μg/ft3
0.03 μg/ft3
0.02 μg/ft3
0.02 μg/ft3
0.02 μg/ft3
0.02 μg/ft3
0.02 μg/ft3
0.02 μg/ft3
0.02 μg/ft3
NO2
0.26 ppb
0.25 ppb
0.24 ppb
0.3 ppb
0.36 ppb
0.43 ppb
0.47 ppb
0.52 ppb
0.56 ppb
SO2
0.09 ppb
0.09 ppb
0.09 ppb
0.08 ppb
0.07 ppb
0.06 ppb
0.07 ppb
0.07 ppb
0.08 ppb
CO
0.13 ppb
0.13 ppb
0.12 ppb
0.13 ppb
0.13 ppb
0.13 ppb
0.13 ppb
0.13 ppb
0.13 ppb
O3
45.02 ppb
45.31 ppb
45.6 ppb
45 ppb
44.39 ppb
43.78 ppb
43.39 ppb
43.01 ppb
42.63 ppb