Hourly Weather in Calypso, Montana, United States
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
5 mph
Light
4 mph
Calm
3 mph
Calm
4 mph
Calm
4 mph
Calm
4 mph
Calm
4 mph
Calm
4 mph
Calm
3 mph
Calm
Humidity
84%
Extremely humid
91%
Extremely humid
92%
Extremely humid
95%
Extremely humid
93%
Extremely humid
94%
Extremely humid
96%
Extremely humid
97%
Extremely humid
98%
Extremely humid
Visibility
9 mi
Good
10 mi
Good
10 mi
Good
10 mi
Good
10 mi
Good
10 mi
Good
8 mi
Good
6 mi
Good
6 mi
Fair
Pressure
1016 hPa
Normal
1016 hPa
Normal
1016 hPa
Normal
1016 hPa
Normal
1016 hPa
Normal
1016 hPa
Normal
1016 hPa
Normal
1016 hPa
Normal
1016 hPa
Normal
Clouds
98%
95%
66%
100%
96%
100%
100%
100%
100%
Dew point
41°
41°
41°
40°
40°
39°
39°
38°
38°
UV Index
0
0
0
0
0
0
0
0
0
Air quality
19
Good
21
Good
24
Good
25
Good
27
Good
30
Good
33
Good
35
Good
35
Good
Pollen index
Tree
1 / 5
1 / 5
1 / 5
1 / 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
0.19 μg/ft3
0.25 μg/ft3
0.25 μg/ft3
0.25 μg/ft3
0.28 μg/ft3
0.32 μg/ft3
0.35 μg/ft3
0.35 μg/ft3
0.34 μg/ft3
PM25
0.13 μg/ft3
0.18 μg/ft3
0.17 μg/ft3
0.17 μg/ft3
0.20 μg/ft3
0.22 μg/ft3
0.24 μg/ft3
0.25 μg/ft3
0.24 μg/ft3
NO2
10.01 ppb
11.85 ppb
13.69 ppb
15.53 ppb
16.82 ppb
18.11 ppb
19.4 ppb
17.14 ppb
14.88 ppb
SO2
0.89 ppb
0.99 ppb
1.08 ppb
1.17 ppb
1.28 ppb
1.38 ppb
1.49 ppb
1.44 ppb
1.38 ppb
CO
0.21 ppb
0.22 ppb
0.24 ppb
0.25 ppb
0.27 ppb
0.28 ppb
0.3 ppb
0.28 ppb
0.26 ppb
O3
16.34 ppb
13.37 ppb
10.4 ppb
7.43 ppb
5.61 ppb
3.78 ppb
1.96 ppb
3.48 ppb
5.01 ppb