Hourly Weather in Boulder, Illinois, United States
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
5 km/h
Calm
4 km/h
Calm
6 km/h
Calm
9 km/h
Light
5 km/h
Calm
3 km/h
Calm
4 km/h
Calm
4 km/h
Calm
7 km/h
Calm
Humidity
48%
Comfortable
44%
Dry
44%
Dry
46%
Comfortable
44%
Dry
41%
Dry
43%
Dry
44%
Dry
46%
Comfortable
Visibility
16 km
Good
16 km
Good
16 km
Good
16 km
Good
16 km
Good
16 km
Good
16 km
Good
16 km
Good
16 km
Good
Pressure
1019 hPa
High
1019 hPa
High
1019 hPa
High
1019 hPa
High
1018 hPa
Normal
1017 hPa
Normal
1018 hPa
Normal
1018 hPa
Normal
1018 hPa
Normal
Clouds
100%
100%
100%
100%
100%
100%
100%
100%
100%
Dew point
12°
12°
12°
13°
13°
12°
13°
13°
14°
UV Index
5
7
5
3
4
4
2
1
0
Air quality
38
Good
40
Good
44
Good
47
Good
52
Moderate
54
Moderate
55
Moderate
55
Moderate
54
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
33.4 μg/m3
33.4 μg/m3
33.4 μg/m3
33.4 μg/m3
36.7 μg/m3
36.7 μg/m3
10 μg/m3
10 μg/m3
9.9 μg/m3
PM25
6.8 μg/m3
7.2 μg/m3
7.8 μg/m3
8.4 μg/m3
9.8 μg/m3
10.4 μg/m3
9.6 μg/m3
9.5 μg/m3
9.5 μg/m3
NO2
1.2 ppb
1 ppb
0.7 ppb
0.8 ppb
0.8 ppb
0.8 ppb
0.9 ppb
1 ppb
1.2 ppb
SO2
0.7 ppb
0.7 ppb
0.6 ppb
0.6 ppb
0.5 ppb
0.5 ppb
0.5 ppb
0.5 ppb
0.5 ppb
CO
0.2 ppb
0.2 ppb
0.1 ppb
0.2 ppb
0.2 ppb
0.2 ppb
0.2 ppb
0.2 ppb
0.2 ppb
O3
27.4 ppb
28.1 ppb
29.2 ppb
30.4 ppb
31.3 ppb
32.8 ppb
60 ppb
59.9 ppb
59.7 ppb