Calvert County, Maryland, United States

Last updated: 7:10 AM CDT  ·  Refresh
12°C
Feels like 9°
Clear
▲ 20°  /  ▼ 9°
Wind
9 mph N
Humidity
81%
Dew Point
9°
Pressure
30.19 inHg
Visibility
10 mi
UV Index
1.4
Cloud Cover
2%
Sunrise
7:27 AM
Sunset
6:11 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Calvert County is currently clear at 12°C. Dry conditions are expected through the next 24 hours. Sunrise: 7:27AM · Sunset: 6:11PM.

Alerts

No active alerts for this location.
36 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
12°
11%
9 AM
14°
11%
10 AM
15°
3%
11 AM
16°
3%
12 PM
17°
3%
1 PM
19°
3%
2 PM
19°
3%
3 PM
20°
3%
4 PM
19°
3%
5 PM
18°
3%
6 PM
17°
3%
7 PM
17°
3%
8 PM
16°
3%
9 PM
13°
3%
10 PM
13°
3%
11 PM
12°
3%
12 AM
12°
3%
1 AM
12°
3%
2 AM
11°
3%
3 AM
11°
3%
4 AM
11°
3%
5 AM
11°
3%
6 AM
11°
3%
7 AM
11°
3%
7-Day Forecast
Today
20° 9°
Clear.
Wed
20° 11°
Partly Cloudy.
Thu
22° 11°
Partly Cloudy.
Fri
26° 11°
Fog.
Sat
20° 11°
Clear.
Sun
22° 9°
Rain, 70% chance.
Mon
22° 13°
Heavy Rain, 90% chance.
TimeTempConditionsPrecipWindHumidity
Now 12° Clear 11% 9 mph N 81%
9 AM 14° Clear 11% 10 mph NNE 76%
10 AM 15° Clear 3% 10 mph NNE 72%
11 AM 16° Clear 3% 10 mph NNE 68%
12 PM 17° Clear 3% 8 mph NNE 67%
1 PM 19° Clear 3% 8 mph NNE 65%
2 PM 19° Clear 3% 7 mph N 64%
3 PM 20° Clear 3% 6 mph N 64%
4 PM 19° Clear 3% 6 mph N 65%
5 PM 18° Clear 3% 6 mph N 67%
6 PM 17° Clear 3% 5 mph NNE 71%
7 PM 17° Clear 3% 6 mph NE 75%
8 PM 16° Clear 3% 7 mph ENE 78%
9 PM 13° Clear 3% 7 mph E 80%
10 PM 13° Clear 3% 7 mph E 82%
11 PM 12° Clear 3% 7 mph E 84%
12 AM 12° Clear 3% 7 mph E 85%
1 AM 12° Mostly Clear 3% 7 mph E 86%
2 AM 11° Mostly Clear 3% 6 mph E 87%
3 AM 11° Mostly Clear 3% 6 mph E 87%
4 AM 11° Mostly Clear 3% 6 mph E 88%
5 AM 11° Mostly Clear 3% 6 mph E 88%
6 AM 11° Mostly Clear 3% 6 mph E 88%
7 AM 11° Partly Cloudy 3% 6 mph ENE 88%
15-Day Forecast
Today
10/27
Clear
11%
9°
20°
Wed
10/28
Partly Cloudy
3%
11°
20°
Thu
10/29
Partly Cloudy
6%
11°
22°
Fri
10/30
Fog
14%
11°
26°
Sat
10/31
Clear
3%
11°
20°
Sun
11/1
Rain
70%
9°
22°
Mon
11/2
Heavy Rain
90%
13°
22°
Tue
11/3
Rain
69%
12°
21°
Wed
11/4
Rain
90%
11°
19°
Thu
11/5
Rain
90%
12°
21°
Fri
11/6
Drizzle
68%
11°
20°
Sat
11/7
Drizzle
60%
11°
18°
Sun
11/8
Drizzle
60%
10°
18°
Mon
11/9
Drizzle
60%
9°
18°
Tue
11/10
Drizzle
60%
9°
18°
36
Good
U.S. Air Quality Index · Dominant: O3
50 100 150 200

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

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
16 AQI 2.9 µg/m³
O3
Ground-level ozone
Dominant
36 AQI 40 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 36 Good 36 16
Wed 48 Good 33 48
Thu 33 Good 33 28
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 Tue Oct 27, 10:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE0 J/kg
MLCAPE31 J/kg
MUCAPE0 J/kg
SBCIN—
MLCIN0 J/kg
Lifted Index14.9
Kinematics
0–6 km Shear29 kt
0–1 km Shear8 kt
Eff. Shear—
0–1 km SRH-44
0–3 km SRH84
Eff. SRH—
Storm Motion337° @ 27 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index8.3
Thermo & Levels
PWAT0.82 in
0–3 km LR2.5 °C/km
700–500 LR5.8 °C/km
Total Totals34.4
LCL980 hPa
LFC—
EL—
Freezing Lvl13,064 ft