Howard County, Maryland, United States

Last updated: 9:09 PM CDT  ·  Refresh
20°C
Feels like 19°
Partly Cloudy
▲ 29°  /  ▼ 16°
Wind
9 mph N
Humidity
87%
Dew Point
17°
Pressure
29.57 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
31%
Sunrise
6:25 AM
Sunset
7:56 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Howard County is currently partly cloudy at 20°C. Dry conditions are expected through the next 24 hours. Sunrise: 6:25AM · Sunset: 7:56PM.

Alerts

No active alerts for this location.
47 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
20°
4%
11 PM
19°
21%
12 AM
18°
21%
1 AM
18°
14%
2 AM
18°
3%
3 AM
17°
3%
4 AM
17°
3%
5 AM
16°
3%
6 AM
16°
3%
7 AM
16°
3%
8 AM
17°
3%
9 AM
18°
3%
10 AM
20°
3%
11 AM
21°
5%
12 PM
22°
5%
1 PM
24°
5%
2 PM
26°
5%
3 PM
26°
11%
4 PM
26°
24%
5 PM
26°
27%
6 PM
25°
32%
7 PM
24°
32%
8 PM
23°
33%
9 PM
22°
36%
7-Day Forecast
Tonight
29° 16°
Partly Cloudy.
Fri
27° 16°
Partly Cloudy with a 36% chance of rain.
Sat
24° 19°
Overcast with a 87% chance of rain.
Sun
29° 18°
Mostly Cloudy with a 39% chance of rain.
Mon
28° 17°
Clear.
Tue
29° 18°
Rain, 61% chance.
Wed
29° 19°
Rain, 71% chance.
TimeTempConditionsPrecipWindHumidity
Now 20° Partly Cloudy 4% 9 mph N 87%
11 PM 19° Clear 21% 9 mph N 87%
12 AM 18° Mostly Clear 21% 8 mph N 88%
1 AM 18° Partly Cloudy 14% 6 mph N 89%
2 AM 18° Partly Cloudy 3% 6 mph N 90%
3 AM 17° Partly Cloudy 3% 6 mph NNW 90%
4 AM 17° Partly Cloudy 3% 6 mph NNW 90%
5 AM 16° Mostly Cloudy 3% 7 mph NNW 92%
6 AM 16° Mostly Cloudy 3% 7 mph NNW 90%
7 AM 16° Mostly Cloudy 3% 7 mph N 88%
8 AM 17° Mostly Cloudy 3% 8 mph N 85%
9 AM 18° Partly Cloudy 3% 7 mph N 79%
10 AM 20° Partly Cloudy 3% 7 mph N 72%
11 AM 21° Mostly Clear 5% 6 mph N 66%
12 PM 22° Partly Cloudy 5% 5 mph N 62%
1 PM 24° Partly Cloudy 5% 4 mph NNE 57%
2 PM 26° Partly Cloudy 5% 4 mph NE 54%
3 PM 26° Mostly Clear 11% 4 mph NE 53%
4 PM 26° Mostly Clear 24% 4 mph NE 53%
5 PM 26° Mostly Clear 27% 4 mph ENE 53%
6 PM 25° Mostly Clear 32% 4 mph ENE 56%
7 PM 24° Partly Cloudy 32% 4 mph ENE 60%
8 PM 23° Partly Cloudy 33% 4 mph ENE 64%
9 PM 22° Mostly Cloudy 36% 4 mph E 67%
15-Day Forecast
Today
8/20
Partly Cloudy
4%
16°
29°
Fri
8/21
Partly Cloudy
36%
16°
27°
Sat
8/22
Overcast
87%
19°
24°
Sun
8/23
Mostly Cloudy
39%
18°
29°
Mon
8/24
Clear
3%
17°
28°
Tue
8/25
Rain
61%
18°
29°
Wed
8/26
Rain
71%
19°
29°
Thu
8/27
Rain
82%
19°
28°
Fri
8/28
Drizzle
68%
19°
31°
Sat
8/29
Rain
68%
20°
31°
Sun
8/30
Clear
64%
20°
31°
Mon
8/31
Drizzle
60%
20°
30°
Tue
9/1
Drizzle
60%
19°
29°
Wed
9/2
Drizzle
60%
19°
29°
Thu
9/3
Drizzle
60%
19°
28°
47
Good
U.S. Air Quality Index · Dominant: PM2.5
50 100 150 200

Air quality is satisfactory and poses little or no health risk.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
Dominant
47 AQI 8.4 µg/m³
O3
Ground-level ozone
44 AQI 47 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 47 Good 44 47
Sat 44 Good 44 34
Sun 33 Good 29 33
About the Air Quality Index
0–50 Good
51–100 Moderate
101–150 Unhealthy for Sensitive Groups
151–200 Unhealthy
201–300 Very Unhealthy
301–500 Hazardous

The U.S. AQI runs 0–500. The overall value equals the highest individual pollutant sub-index, and the dominant pollutant is the one driving it. PM2.5 (fine particles) is reported in µg/m³ and ozone (O3) in ppb. Forecast source: NWS NAQFC.

1000850700500400300250200150100 -40-30-20-10010203040 0.41247101624 LCL0°C Temperature (°C) Pressure (hPa)
Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio
RAP
Valid Thu Aug 20, 23:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 70 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE0 J/kg
MLCAPE8 J/kg
MUCAPE0 J/kg
SBCIN—
MLCIN0 J/kg
Lifted Index4.5
Kinematics
0–6 km Shear33 kt
0–1 km Shear15 kt
Eff. Shear—
0–1 km SRH-96
0–3 km SRH-10
Eff. SRH—
Storm Motion307° @ 29 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index29.9
Thermo & Levels
PWAT1.68 in
0–3 km LR3.9 °C/km
700–500 LR5.6 °C/km
Total Totals41.2
LCL966 hPa
LFC—
EL—
Freezing Lvl14,669 ft