Hourly Weather in Grayslake, Illinois, United States
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
9 mph
Light
9 mph
Light
9 mph
Light
9 mph
Light
9 mph
Light
9 mph
Light
9 mph
Light
9 mph
Light
9 mph
Light
Humidity
74%
Extremely humid
76%
Extremely humid
73%
Extremely humid
71%
Extremely humid
71%
Extremely humid
78%
Extremely humid
79%
Extremely humid
80%
Extremely humid
78%
Extremely humid
Visibility
10 mi
Good
10 mi
Good
10 mi
Good
10 mi
Good
10 mi
Good
10 mi
Good
10 mi
Good
10 mi
Good
10 mi
Good
Pressure
1016 hPa
Normal
1016 hPa
Normal
1016 hPa
Normal
1016 hPa
Normal
1015 hPa
Normal
1015 hPa
Normal
1014 hPa
Normal
1013 hPa
Normal
1012 hPa
Normal
Clouds
29%
44%
89%
82%
100%
100%
99%
99%
94%
Dew point
25°
24°
22°
22°
22°
24°
26°
27°
27°
UV Index
0
0
0
0
0
0
0
0
0
Air quality
32
Good
36
Good
39
Good
40
Good
40
Good
38
Good
35
Good
32
Good
30
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
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
Pollutants
Low risk
High risk
PM10
0.16 μg/ft3
0.18 μg/ft3
0.20 μg/ft3
0.20 μg/ft3
0.20 μg/ft3
0.20 μg/ft3
0.18 μg/ft3
0.16 μg/ft3
0.15 μg/ft3
PM25
0.16 μg/ft3
0.18 μg/ft3
0.20 μg/ft3
0.20 μg/ft3
0.20 μg/ft3
0.19 μg/ft3
0.18 μg/ft3
0.16 μg/ft3
0.15 μg/ft3
NO2
11.1 ppb
12.6 ppb
14.1 ppb
13.2 ppb
12.2 ppb
11.3 ppb
9.9 ppb
8.5 ppb
7.1 ppb
SO2
1.7 ppb
1.9 ppb
2.2 ppb
2.1 ppb
2 ppb
2 ppb
1.9 ppb
1.8 ppb
1.7 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
34.3 ppb
31.7 ppb
29 ppb
28.2 ppb
28.1 ppb
28.6 ppb
29 ppb
29.3 ppb
29.6 ppb