High Surf Advisory — Coastal Nassau, FL, Coastal Duval, FL, Coastal Flagler, FL, Northeast Coastal St. Johns, FL, Southeast Coastal St. Johns, FL, Coastal Glynn, GA, Coastal Camden, GA 1:00 AM Rip Current Statement — Coastal Nassau, FL, Coastal Duval, FL, Coastal Flagler, FL, Northeast Coastal St. Johns, FL, Southeast Coastal St. Johns, FL, Coastal Glynn, GA, Coastal Camden, GA 1:00 AM

St. Marys, Georgia

Last updated: 6:45 PM CDT  ·  Refresh
17°C
Feels like 14°
Mostly Cloudy
▲ 21°  /  ▼ 13°
Wind
12 mph NNE
Humidity
71%
Dew Point
12°
Pressure
30.25 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
75%
Sunrise
7:30 AM
Sunset
6:51 PM
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WeatherAI™ Analysis

WeatherAI Analysis: St. Marys is currently mostly cloudy at 17°C. Dry conditions are expected through the next 24 hours. Sunrise: 7:30AM · Sunset: 6:51PM.

Alerts

High Surf Advisory
Coastal Nassau, FL, Coastal Duval, FL, Coastal Flagler, FL, Northeast Coastal St. Johns, FL, Southeast Coastal St. Johns, FL, Coastal Glynn, GA, Coastal Camden, GA
Expires 1:00 AM
Rip Current Statement
Coastal Nassau, FL, Coastal Duval, FL, Coastal Flagler, FL, Northeast Coastal St. Johns, FL, Southeast Coastal St. Johns, FL, Coastal Glynn, GA, Coastal Camden, GA
Expires 1:00 AM
35 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
17°
15%
8 PM
18°
15%
9 PM
17°
18%
10 PM
17°
11%
11 PM
17°
11%
12 AM
17°
21%
1 AM
16°
20%
2 AM
16°
22%
3 AM
15°
6%
4 AM
15°
6%
5 AM
15°
6%
6 AM
14°
6%
7 AM
14°
9%
8 AM
15°
6%
9 AM
17°
6%
10 AM
18°
6%
11 AM
18°
4%
12 PM
19°
4%
1 PM
21°
3%
2 PM
22°
3%
3 PM
22°
3%
4 PM
22°
3%
5 PM
20°
3%
6 PM
19°
3%
7-Day Forecast
Tonight
21° 13°
Mostly Cloudy.
Mon
22° 14°
Partly Cloudy with a 20% chance of rain.
Tue
24° 13°
Clear.
Wed
24° 15°
Clear.
Thu
24° 14°
Clear.
Fri
24° 15°
Mostly Clear.
Sat
23° 18°
Overcast with a 31% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 17° Mostly Cloudy 15% 12 mph NNE 71%
8 PM 18° Mostly Cloudy 15% 13 mph NNE 73%
9 PM 17° Partly Cloudy 18% 13 mph NNE 73%
10 PM 17° Partly Cloudy 11% 13 mph NNE 73%
11 PM 17° Mostly Cloudy 11% 12 mph NNE 74%
12 AM 17° Mostly Cloudy 21% 12 mph NNE 76%
1 AM 16° Mostly Cloudy 20% 12 mph N 78%
2 AM 16° Partly Cloudy 22% 12 mph N 78%
3 AM 15° Partly Cloudy 6% 12 mph N 78%
4 AM 15° Partly Cloudy 6% 13 mph N 78%
5 AM 15° Partly Cloudy 6% 13 mph N 79%
6 AM 14° Partly Cloudy 6% 13 mph N 80%
7 AM 14° Partly Cloudy 9% 12 mph N 81%
8 AM 15° Partly Cloudy 6% 13 mph N 79%
9 AM 17° Partly Cloudy 6% 13 mph N 76%
10 AM 18° Partly Cloudy 6% 13 mph N 72%
11 AM 18° Partly Cloudy 4% 13 mph NNE 68%
12 PM 19° Partly Cloudy 4% 13 mph NNE 65%
1 PM 21° Mostly Clear 3% 12 mph NNE 61%
2 PM 22° Mostly Clear 3% 12 mph NNE 60%
3 PM 22° Mostly Clear 3% 12 mph NNE 59%
4 PM 22° Mostly Clear 3% 11 mph NNE 59%
5 PM 20° Clear 3% 10 mph NNE 61%
6 PM 19° Clear 3% 10 mph NNE 63%
15-Day Forecast
Today
10/18
Mostly Cloudy
15%
13°
21°
Mon
10/19
Partly Cloudy
20%
14°
22°
Tue
10/20
Clear
3%
13°
24°
Wed
10/21
Clear
3%
15°
24°
Thu
10/22
Clear
3%
14°
24°
Fri
10/23
Mostly Clear
7%
15°
24°
Sat
10/24
Overcast
31%
18°
23°
Sun
10/25
Mostly Cloudy
30%
17°
22°
Mon
10/26
Rain
66%
18°
24°
Tue
10/27
Rain
54%
17°
25°
Wed
10/28
Rain
57%
18°
30°
Thu
10/29
Drizzle
60%
18°
28°
Fri
10/30
Drizzle
60%
18°
24°
Sat
10/31
Drizzle
60%
18°
25°
Sun
11/1
Drizzle
60%
18°
25°
35
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
21 AQI 3.7 µg/m³
O3
Ground-level ozone
Dominant
35 AQI 39 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Mon 35 Good 35 21
Tue 33 Good 33 21
Wed 37 Good 37 36
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 Sun Oct 18, 22:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE0 J/kg
MLCAPE6 J/kg
MUCAPE0 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index11.2
Kinematics
0–6 km Shear4 kt
0–1 km Shear18 kt
Eff. Shear—
0–1 km SRH39
0–3 km SRH95
Eff. SRH—
Storm Motion340° @ 13 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index-18.7
Thermo & Levels
PWAT0.70 in
0–3 km LR2.6 °C/km
700–500 LR6.6 °C/km
Total Totals34.0
LCL945 hPa
LFC1024 hPa
EL1024 hPa
Freezing Lvl15,059 ft