Hourly Weather in Ellicott City, Maryland, United States
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
15 mph
Breezy
13 mph
Breezy
12 mph
Breezy
10 mph
Breezy
8 mph
Light
7 mph
Light
7 mph
Light
8 mph
Light
7 mph
Light
Humidity
88%
Extremely humid
89%
Extremely humid
89%
Extremely humid
89%
Extremely humid
88%
Extremely humid
88%
Extremely humid
89%
Extremely humid
92%
Extremely humid
98%
Extremely humid
Visibility
8 mi
Good
7 mi
Good
8 mi
Good
0 mi
Low
0 mi
Low
0 mi
Low
8 mi
Good
0 mi
Low
7 mi
Good
Pressure
1005 hPa
Low
1005 hPa
Low
1004 hPa
Low
1004 hPa
Low
1003 hPa
Very low
1002 hPa
Very low
1002 hPa
Very low
1003 hPa
Very low
1001 hPa
Very low
Clouds
100%
100%
100%
100%
100%
100%
100%
100%
100%
Dew point
55°
56°
56°
56°
57°
57°
56°
56°
60°
UV Index
1
2
2
1
0
0
0
0
0
Air quality
44
Good
43
Good
43
Good
42
Good
42
Good
41
Good
41
Good
41
Good
41
Good
Pollen index
Tree
1 / 5
1 / 5
0 / 5
0 / 5
0 / 5
0 / 5
1 / 5
1 / 5
1 / 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
0 / 5
0 / 5
1 / 5
1 / 5
Pollutants
Low risk
High risk
PM10
0.23 μg/ft3
0.22 μg/ft3
0.24 μg/ft3
0.23 μg/ft3
0.20 μg/ft3
0.19 μg/ft3
0.20 μg/ft3
0.19 μg/ft3
0.17 μg/ft3
PM25
0.13 μg/ft3
0.13 μg/ft3
0.14 μg/ft3
0.13 μg/ft3
0.12 μg/ft3
0.12 μg/ft3
0.12 μg/ft3
0.11 μg/ft3
0.10 μg/ft3
NO2
0.74 ppb
0.73 ppb
0.76 ppb
0.78 ppb
0.8 ppb
0.99 ppb
1.17 ppb
1.35 ppb
1.23 ppb
SO2
0.08 ppb
0.08 ppb
0.08 ppb
0.08 ppb
0.07 ppb
0.07 ppb
0.08 ppb
0.08 ppb
0.1 ppb
CO
0.12 ppb
0.12 ppb
0.12 ppb
0.12 ppb
0.12 ppb
0.12 ppb
0.12 ppb
0.12 ppb
0.12 ppb
O3
45.28 ppb
44.13 ppb
44.07 ppb
44.01 ppb
43.95 ppb
43.7 ppb
43.46 ppb
43.21 ppb
43.94 ppb