Harford County, Maryland, United States

Last updated: 9:11 PM CDT  ·  Refresh
19°C
Feels like 18°
Mostly Clear
▲ 27°  /  ▼ 15°
Wind
11 mph N
Humidity
88%
Dew Point
17°
Pressure
29.61 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
19%
Sunrise
6:22 AM
Sunset
7:54 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Harford County is currently mostly clear at 19°C. Dry conditions are expected through the next 24 hours. Sunrise: 6:22AM · Sunset: 7:54PM.

Alerts

No active alerts for this location.
44 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
19°
3%
11 PM
18°
21%
12 AM
17°
21%
1 AM
18°
14%
2 AM
18°
3%
3 AM
17°
3%
4 AM
17°
3%
5 AM
15°
3%
6 AM
15°
3%
7 AM
15°
3%
8 AM
16°
3%
9 AM
17°
5%
10 AM
19°
5%
11 AM
20°
5%
12 PM
22°
5%
1 PM
24°
8%
2 PM
25°
14%
3 PM
26°
20%
4 PM
26°
20%
5 PM
25°
21%
6 PM
24°
21%
7 PM
23°
19%
8 PM
23°
22%
9 PM
21°
42%
7-Day Forecast
Tonight
27° 15°
Mostly Clear.
Fri
26° 15°
Partly Cloudy with a 42% chance of rain.
Sat
23° 18°
Overcast with a 84% chance of rain.
Sun
29° 17°
Mostly Cloudy with a 50% chance of rain.
Mon
28° 16°
Clear.
Tue
28° 16°
Rain, 61% chance.
Wed
28° 17°
Rain, 71% chance.
TimeTempConditionsPrecipWindHumidity
Now 19° Mostly Clear 3% 11 mph N 88%
11 PM 18° Clear 21% 10 mph N 89%
12 AM 17° Mostly Clear 21% 9 mph N 90%
1 AM 18° Partly Cloudy 14% 8 mph N 92%
2 AM 18° Partly Cloudy 3% 7 mph NNW 93%
3 AM 17° Partly Cloudy 3% 7 mph NNW 93%
4 AM 17° Partly Cloudy 3% 7 mph NNW 94%
5 AM 15° Mostly Cloudy 3% 7 mph NNW 94%
6 AM 15° Mostly Cloudy 3% 8 mph NNW 93%
7 AM 15° Mostly Cloudy 3% 8 mph NNW 91%
8 AM 16° Mostly Cloudy 3% 8 mph N 88%
9 AM 17° Partly Cloudy 5% 8 mph N 82%
10 AM 19° Partly Cloudy 5% 8 mph N 76%
11 AM 20° Mostly Clear 5% 7 mph N 70%
12 PM 22° Partly Cloudy 5% 6 mph N 66%
1 PM 24° Partly Cloudy 8% 5 mph NNE 61%
2 PM 25° Partly Cloudy 14% 4 mph NNE 57%
3 PM 26° Partly Cloudy 20% 4 mph NNE 57%
4 PM 26° Mostly Clear 20% 4 mph NE 56%
5 PM 25° Mostly Clear 21% 4 mph NE 57%
6 PM 24° Mostly Clear 21% 4 mph NE 62%
7 PM 23° Mostly Clear 19% 4 mph NE 66%
8 PM 23° Partly Cloudy 22% 4 mph NE 70%
9 PM 21° Partly Cloudy 42% 3 mph NE 73%
15-Day Forecast
Today
8/20
Mostly Clear
3%
15°
27°
Fri
8/21
Partly Cloudy
42%
15°
26°
Sat
8/22
Overcast
84%
18°
23°
Sun
8/23
Mostly Cloudy
50%
17°
29°
Mon
8/24
Clear
3%
16°
28°
Tue
8/25
Rain
61%
16°
28°
Wed
8/26
Rain
71%
17°
28°
Thu
8/27
Rain
82%
18°
27°
Fri
8/28
Rain
68%
19°
30°
Sat
8/29
Rain
68%
19°
30°
Sun
8/30
Drizzle
60%
19°
31°
Mon
8/31
Drizzle
60%
18°
30°
Tue
9/1
Drizzle
60%
17°
28°
Wed
9/2
Drizzle
60%
17°
28°
Thu
9/3
Drizzle
60%
17°
27°
44
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
44 AQI 7.9 µg/m³
O3
Ground-level ozone
42 AQI 45 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 44 Good 42 44
Sat 44 Good 44 26
Sun 50 Good 28 50
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
MLCAPE10 J/kg
MUCAPE0 J/kg
SBCIN—
MLCIN0 J/kg
Lifted Index5.7
Kinematics
0–6 km Shear35 kt
0–1 km Shear15 kt
Eff. Shear—
0–1 km SRH-131
0–3 km SRH-6
Eff. SRH—
Storm Motion299° @ 31 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index31.1
Thermo & Levels
PWAT1.68 in
0–3 km LR3.5 °C/km
700–500 LR5.7 °C/km
Total Totals42.8
LCL975 hPa
LFC—
EL—
Freezing Lvl14,957 ft