Hourly Weather in Helena Historic District, United States
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
7 mph
Light
7 mph
Light
8 mph
Light
8 mph
Light
7 mph
Light
8 mph
Light
8 mph
Light
9 mph
Light
9 mph
Light
Humidity
84%
Extremely humid
86%
Extremely humid
87%
Extremely humid
86%
Extremely humid
86%
Extremely humid
86%
Extremely humid
86%
Extremely humid
86%
Extremely humid
84%
Extremely humid
Visibility
9 mi
Good
9 mi
Good
8 mi
Good
8 mi
Good
8 mi
Good
8 mi
Good
8 mi
Good
8 mi
Good
9 mi
Good
Pressure
1024 hPa
High
1024 hPa
High
1024 hPa
High
1024 hPa
High
1024 hPa
High
1024 hPa
High
1024 hPa
High
1024 hPa
High
1024 hPa
High
Clouds
97%
44%
40%
82%
87%
96%
35%
40%
19%
Dew point
47°
47°
46°
46°
46°
46°
45°
45°
45°
UV Index
0
0
0
0
0
0
0
0
0
Air quality
36
Good
35
Good
35
Good
35
Good
34
Good
34
Good
34
Good
33
Good
33
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
1 / 5
1 / 5
0 / 5
0 / 5
1 / 5
0 / 5
0 / 5
0 / 5
0 / 5
Pollutants
Low risk
High risk
PM10
0.30 μg/ft3
0.27 μg/ft3
0.25 μg/ft3
0.23 μg/ft3
0.22 μg/ft3
0.21 μg/ft3
0.20 μg/ft3
0.20 μg/ft3
0.20 μg/ft3
PM25
0.20 μg/ft3
0.18 μg/ft3
0.16 μg/ft3
0.15 μg/ft3
0.14 μg/ft3
0.13 μg/ft3
0.13 μg/ft3
0.13 μg/ft3
0.13 μg/ft3
NO2
0.93 ppb
0.9 ppb
0.86 ppb
0.83 ppb
0.79 ppb
0.75 ppb
0.71 ppb
0.72 ppb
0.73 ppb
SO2
0.16 ppb
0.17 ppb
0.19 ppb
0.21 ppb
0.2 ppb
0.2 ppb
0.19 ppb
0.18 ppb
0.17 ppb
CO
0.11 ppb
0.11 ppb
0.11 ppb
0.11 ppb
0.11 ppb
0.11 ppb
0.11 ppb
0.11 ppb
0.12 ppb
O3
37.34 ppb
37.08 ppb
36.82 ppb
36.57 ppb
36.15 ppb
35.73 ppb
35.32 ppb
35.15 ppb
34.98 ppb