Hourly Weather in Alton, Rhode Island, United States
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
5 km/h
Calm
6 km/h
Calm
5 km/h
Calm
7 km/h
Calm
7 km/h
Calm
9 km/h
Light
11 km/h
Light
13 km/h
Light
14 km/h
Light
Humidity
96%
Extremely humid
93%
Extremely humid
94%
Extremely humid
95%
Extremely humid
94%
Extremely humid
94%
Extremely humid
94%
Extremely humid
90%
Extremely humid
80%
Extremely humid
Visibility
15 km
Good
12 km
Good
12 km
Good
12 km
Good
12 km
Good
12 km
Good
12 km
Good
14 km
Good
16 km
Good
Pressure
1010 hPa
Normal
1008 hPa
Low
1009 hPa
Normal
1009 hPa
Normal
1010 hPa
Normal
1009 hPa
Normal
1009 hPa
Normal
1009 hPa
Low
1008 hPa
Low
Clouds
29%
0%
31%
68%
30%
94%
84%
58%
39%
Dew point
19°
19°
19°
19°
19°
20°
20°
21°
20°
UV Index
0
0
0
0
0
0
0
1
2
Air quality
28
Good
28
Good
29
Good
30
Good
32
Good
35
Good
38
Good
59
Moderate
59
Moderate
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
12.9 μg/m3
12.9 μg/m3
12.9 μg/m3
12.9 μg/m3
12.9 μg/m3
12.9 μg/m3
12.9 μg/m3
16.9 μg/m3
16.2 μg/m3
PM25
4.9 μg/m3
5 μg/m3
5.2 μg/m3
5.4 μg/m3
5.6 μg/m3
5.8 μg/m3
6 μg/m3
13.4 μg/m3
13.1 μg/m3
NO2
3.7 ppb
3.8 ppb
3.3 ppb
2.8 ppb
2.4 ppb
2.2 ppb
2.1 ppb
2.1 ppb
1.7 ppb
SO2
0.3 ppb
0.3 ppb
0.3 ppb
0.3 ppb
0.2 ppb
0.3 ppb
0.3 ppb
0.3 ppb
0.3 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
21.6 ppb
23.9 ppb
26.9 ppb
30.5 ppb
34.2 ppb
37.7 ppb
40.7 ppb
47.8 ppb
48.6 ppb