Hourly Weather in Upper Alton, Illinois, 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
5 km/h
Calm
4 km/h
Calm
3 km/h
Calm
4 km/h
Calm
8 km/h
Light
6 km/h
Calm
Humidity
96%
Extremely humid
98%
Extremely humid
92%
Extremely humid
82%
Extremely humid
74%
Extremely humid
68%
Humid
64%
Humid
60%
Humid
56%
Comfortable
Visibility
12 km
Good
0 km
Low
13 km
Good
16 km
Good
16 km
Good
16 km
Good
16 km
Good
16 km
Good
16 km
Good
Pressure
1013 hPa
Normal
1013 hPa
Normal
1013 hPa
Normal
1013 hPa
Normal
1013 hPa
Normal
1012 hPa
Normal
1011 hPa
Normal
1011 hPa
Normal
1011 hPa
Normal
Clouds
100%
100%
54%
88%
70%
36%
68%
95%
90%
Dew point
24°
26°
26°
26°
26°
26°
26°
26°
26°
UV Index
0
1
2
4
6
7
8
8
6
Air quality
60
Moderate
60
Moderate
60
Moderate
60
Moderate
62
Moderate
63
Moderate
63
Moderate
65
Moderate
66
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
1 / 5
1 / 5
1 / 5
1 / 5
0 / 5
1 / 5
1 / 5
0 / 5
1 / 5
Pollutants
Low risk
High risk
PM10
21.6 μg/m3
21.6 μg/m3
21.6 μg/m3
21.6 μg/m3
15 μg/m3
15.7 μg/m3
15.8 μg/m3
16.1 μg/m3
16.6 μg/m3
PM25
13.9 μg/m3
13.9 μg/m3
14 μg/m3
14 μg/m3
14.6 μg/m3
15.2 μg/m3
15.3 μg/m3
15.5 μg/m3
15.9 μg/m3
NO2
10.7 ppb
8 ppb
5.3 ppb
2.7 ppb
2.3 ppb
1.8 ppb
1.4 ppb
1.4 ppb
1.4 ppb
SO2
1.3 ppb
1.3 ppb
1.5 ppb
1.6 ppb
1.8 ppb
1.9 ppb
2 ppb
1.9 ppb
1.8 ppb
CO
0.3 ppb
0.3 ppb
0.3 ppb
0.3 ppb
0.3 ppb
0.2 ppb
0.2 ppb
0.2 ppb
0.2 ppb
O3
20.6 ppb
25.4 ppb
30.4 ppb
35.2 ppb
58.4 ppb
65.3 ppb
71.1 ppb
74.1 ppb
75.7 ppb