Charles County, Maryland, United States

Last updated: 10:32 PM CDT · Refresh

22°C

Feels like 24°

Rain

▲ 31° / ▼ 21°

Wind

8 mph SW

Humidity

95%

Dew Point

22°

Pressure

29.66 inHg

Visibility

4 mi

UV Index

0.0

Cloud Cover

96%

Sunrise

6:00 AM

Sunset

8:27 PM

Drag to pan · double-click to forecast a point

WeatherAI™ Analysis

WeatherAI Analysis: Charles County is currently rain at 22°C. Precipitation is likely — peak probability 90% around 11 PM. Atmospheric instability is elevated (CAPE up to 1412 J/kg) — isolated convective development possible. Sunrise: 6:00AM · Sunset: 8:27PM.

39 AQI · Good Dominant: O3 Air Quality

Hourly Forecast · Next 24 Hours

Now

22°

90%

12 AM

23°

90%

1 AM

23°

84%

2 AM

23°

65%

3 AM

23°

49%

4 AM

23°

47%

5 AM

21°

39%

6 AM

22°

28%

7 AM

23°

28%

8 AM

24°

29%

9 AM

25°

36%

10 AM

26°

52%

11 AM

27°

56%

12 PM

28°

46%

1 PM

28°

46%

2 PM

28°

47%

3 PM

28°

47%

4 PM

28°

51%

5 PM

28°

65%

6 PM

26°

61%

7 PM

26°

61%

8 PM

25°

53%

9 PM

25°

57%

10 PM

25°

57%

7-Day Forecast

Tonight

31° 21°

Rain, 90% chance.

Wed

29° 21°

Rain, 65% chance.

Thu

28° 17°

Mostly Clear.

Fri

28° 16°

Mostly Cloudy with a 37% chance of rain.

Sat

26° 18°

Overcast with a 45% chance of rain.

Sun

30° 18°

Rain, 70% chance.

Mon

32° 19°

Rain, 64% chance.

+ Feels like

TimeTempConditionsPrecipWindHumidity

Now 22° Rain 90% 8 mph SW 95%

12 AM 23° Rain 90% 8 mph SW 95%

1 AM 23° Rain 84% 8 mph SW 94%

2 AM 23° Overcast 65% 8 mph SW 95%

3 AM 23° Mostly Cloudy 49% 7 mph SW 96%

4 AM 23° Mostly Cloudy 47% 6 mph SSW 96%

5 AM 21° Mostly Cloudy 39% 6 mph SSW 96%

6 AM 22° Partly Cloudy 28% 6 mph SW 94%

7 AM 23° Partly Cloudy 28% 7 mph SW 93%

8 AM 24° Mostly Cloudy 29% 8 mph SW 88%

9 AM 25° Mostly Cloudy 36% 7 mph WSW 80%

10 AM 26° Mostly Cloudy 52% 8 mph WSW 72%

11 AM 27° Partly Cloudy 56% 8 mph WSW 67%

12 PM 28° Partly Cloudy 46% 8 mph WSW 63%

1 PM 28° Mostly Cloudy 46% 8 mph WSW 59%

2 PM 28° Mostly Cloudy 47% 8 mph WSW 58%

3 PM 28° Mostly Cloudy 47% 7 mph W 60%

4 PM 28° Rain 51% 6 mph W 62%

5 PM 28° Rain 65% 5 mph W 66%

6 PM 26° Mostly Cloudy 61% 4 mph W 72%

7 PM 26° Mostly Cloudy 61% 4 mph W 78%

8 PM 25° Mostly Cloudy 53% 4 mph W 78%

9 PM 25° Mostly Cloudy 57% 4 mph WNW 77%

10 PM 25° Rain 57% 5 mph WNW 76%

15-Day Forecast

Today

7/21

Rain

90%

21°

31°

Wed

7/22

Rain

65%

21°

29°

Thu

7/23

Mostly Clear

17°

28°

Fri

7/24

Mostly Cloudy

37%

16°

28°

Sat

7/25

Overcast

45%

18°

26°

Sun

7/26

Rain

70%

18°

30°

Mon

7/27

Rain

64%

19°

32°

Tue

7/28

Thunderstorm

71%

19°

35°

Wed

7/29

Rain

69%

18°

29°

Thu

7/30

Drizzle

44%

18°

29°

Fri

7/31

Drizzle

60%

17°

29°

Sat

8/1

Drizzle

60%

18°

29°

Sun

8/2

Drizzle

60%

19°

29°

Mon

8/3

Drizzle

60%

19°

31°

Tue

8/4

Drizzle

60%

20°

32°

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

PM_2.5

Fine particulate matter

19 AQI 3.6 µg/m³

O₃

Ground-level ozone

Dominant

39 AQI 43 ppb

3-Day Outlook

DayAQICategoryO₃PM2.5

Today 39 Good 39 19

Thu 38 Good 38 16

Fri 42 Good 42 22

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. PM_2.5 (fine particles) is reported in µg/m³ and ozone (O₃) in ppb. Forecast source: NWS NAQFC.

Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio

RAP

Valid Wed Jul 22, 02:00'Z' · F0 · 130 (13 km CONUS/NA)

Hodograph · kt

0–1 1–3 3–6 6–9 km

Instability

SBCAPE255 J/kg

MLCAPE415 J/kg

MUCAPE647 J/kg

SBCIN-119 J/kg

MLCIN0 J/kg

Lifted Index-0.9

Kinematics

0–6 km Shear38 kt

0–1 km Shear24 kt

Eff. Shear38 kt

0–1 km SRH-43

0–3 km SRH-68

Eff. SRH-68

Storm Motion237° @ 35 kt

0–1 km EHI-0.1

Composite Parameters

Sig. Tornado0.0

STP (eff)0.0

Supercell0.0

K-Index33.7

Thermo & Levels

PWAT2.16 in

0–3 km LR4.9 °C/km

700–500 LR5.0 °C/km

Total Totals43.5

LCL994 hPa

LFC759 hPa

EL350 hPa

Freezing Lvl14,318 ft

Charles County, Maryland, United States

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