Saint Marys Beach, Maryland

Last updated: 9:11 PM CDT  ·  Refresh
23°C
Feels like 26°
Mostly Cloudy
▲ 32°  /  ▼ 19°
Wind
6 mph N
Humidity
86%
Dew Point
21°
Pressure
29.90 inHg
Visibility
9 mi
UV Index
0.0
Cloud Cover
74%
Sunrise
6:25 AM
Sunset
7:53 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Saint Marys Beach is currently mostly cloudy at 23°C. Precipitation is likely — peak probability 51% around 10 PM. Sunrise: 6:25AM · Sunset: 7:53PM.

Alerts

No active alerts for this location.
39 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
23°
16%
11 PM
22°
34%
12 AM
21°
31%
1 AM
21°
31%
2 AM
21°
11%
3 AM
20°
11%
4 AM
19°
10%
5 AM
19°
3%
6 AM
19°
3%
7 AM
19°
3%
8 AM
19°
3%
9 AM
21°
6%
10 AM
22°
6%
11 AM
22°
6%
12 PM
23°
6%
1 PM
24°
3%
2 PM
25°
11%
3 PM
26°
24%
4 PM
26°
24%
5 PM
26°
27%
6 PM
25°
40%
7 PM
24°
41%
8 PM
24°
45%
9 PM
22°
50%
7-Day Forecast
Tonight
32° 19°
Mostly Cloudy.
Fri
27° 19°
Partly Cloudy with a 51% chance of rain.
Sat
26° 21°
Rain, 81% chance.
Sun
30° 20°
Partly Cloudy with a 43% chance of rain.
Mon
29° 19°
Clear.
Tue
28° 18°
Rain, 61% chance.
Wed
29° 19°
Heavy Rain, 82% chance.
TimeTempConditionsPrecipWindHumidity
Now 23° Mostly Cloudy 16% 6 mph N 86%
11 PM 22° Mostly Cloudy 34% 8 mph N 87%
12 AM 21° Mostly Cloudy 31% 9 mph N 87%
1 AM 21° Mostly Cloudy 31% 9 mph N 86%
2 AM 21° Mostly Cloudy 11% 8 mph N 86%
3 AM 20° Mostly Cloudy 11% 8 mph N 87%
4 AM 19° Mostly Cloudy 10% 8 mph N 88%
5 AM 19° Partly Cloudy 3% 8 mph NNW 89%
6 AM 19° Partly Cloudy 3% 8 mph N 88%
7 AM 19° Mostly Cloudy 3% 8 mph N 87%
8 AM 19° Mostly Cloudy 3% 9 mph N 86%
9 AM 21° Partly Cloudy 6% 9 mph N 82%
10 AM 22° Partly Cloudy 6% 8 mph N 78%
11 AM 22° Partly Cloudy 6% 8 mph N 74%
12 PM 23° Partly Cloudy 6% 7 mph N 73%
1 PM 24° Partly Cloudy 3% 6 mph NNE 71%
2 PM 25° Mostly Cloudy 11% 5 mph NNE 69%
3 PM 26° Partly Cloudy 24% 5 mph NNE 68%
4 PM 26° Partly Cloudy 24% 5 mph NNE 66%
5 PM 26° Partly Cloudy 27% 5 mph NNE 66%
6 PM 25° Partly Cloudy 40% 5 mph NE 68%
7 PM 24° Partly Cloudy 41% 5 mph NE 71%
8 PM 24° Partly Cloudy 45% 5 mph ENE 73%
9 PM 22° Mostly Cloudy 50% 6 mph ENE 76%
15-Day Forecast
Today
8/20
Mostly Cloudy
16%
19°
32°
Fri
8/21
Partly Cloudy
51%
19°
27°
Sat
8/22
Rain
81%
21°
26°
Sun
8/23
Partly Cloudy
43%
20°
30°
Mon
8/24
Clear
8%
19°
29°
Tue
8/25
Rain
61%
18°
28°
Wed
8/26
Heavy Rain
82%
19°
29°
Thu
8/27
Rain
90%
20°
28°
Fri
8/28
Drizzle
69%
20°
30°
Sat
8/29
Rain
68%
20°
31°
Sun
8/30
Drizzle
64%
20°
31°
Mon
8/31
Drizzle
60%
20°
31°
Tue
9/1
Drizzle
60%
19°
27°
Wed
9/2
Drizzle
60%
19°
27°
Thu
9/3
Drizzle
60%
19°
27°
39
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
37 AQI 6.7 µg/m³
O3
Ground-level ozone
Dominant
39 AQI 42 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 39 Good 39 37
Sat 31 Good 31 23
Sun 34 Good 34 11
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 LCLLFCEL0°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 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE51 J/kg
MLCAPE43 J/kg
MUCAPE158 J/kg
SBCIN-129 J/kg
MLCIN-97 J/kg
Lifted Index1.0
Kinematics
0–6 km Shear32 kt
0–1 km Shear18 kt
Eff. Shear32 kt
0–1 km SRH-107
0–3 km SRH-15
Eff. SRH33
Storm Motion287° @ 31 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.1
K-Index34.2
Thermo & Levels
PWAT1.86 in
0–3 km LR5.1 °C/km
700–500 LR4.6 °C/km
Total Totals41.6
LCL983 hPa
LFC768 hPa
EL560 hPa
Freezing Lvl15,374 ft