Heat Advisory — Suwannee, FL, Baker, FL, Inland Nassau, FL, Union, FL, Bradford, FL, Gilchrist, FL, Inland Flagler, FL, Eastern Hamilton, FL, Coastal Nassau, FL, Coastal Duval, FL, Eastern Clay, FL, Eastern Alachua, FL, Eastern Putnam, FL, Coastal Flagler, FL, Eastern Marion, FL, Western Hamilton, FL, Trout River, FL, Western Clay, FL, Northeast Coastal St. Johns, FL, Western Alachua, FL, Western Putnam, FL, Central Marion, FL, Northern Columbia, FL, South Central Duval, FL, Southeast Coastal St. Johns, FL, Western Marion, FL, Southeastern Columbia, FL, Western Duval, FL, Northern Inland St. Johns, FL, Southwestern Columbia, FL, Southern Inland St. Johns, FL, Western St. Johns, FL, Inland Glynn, GA, Coastal Glynn, GA, Inland Camden, GA, Coastal Camden, GA 6:00 PM

St. Marys, Georgia

Last updated: 5:15 AM CDT  ·  Refresh
26°C
Feels like 30°
Mostly Clear
▲ 36°  /  ▼ 24°
Wind
4 mph SW
Humidity
89%
Dew Point
24°
Pressure
30.09 inHg
Visibility
9 mi
UV Index
0.0
Cloud Cover
17%
Sunrise
6:50 AM
Sunset
8:12 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: St. Marys is currently mostly clear at 26°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2278 J/kg) — isolated convective development possible. Sunrise: 6:50AM · Sunset: 8:12PM.

Alerts

Heat Advisory
Suwannee, FL, Baker, FL, Inland Nassau, FL, Union, FL, Bradford, FL, Gilchrist, FL, Inland Flagler, FL, Eastern Hamilton, FL, Coastal Nassau, FL, Coastal Duval, FL, Eastern Clay, FL, Eastern Alachua, FL, Eastern Putnam, FL, Coastal Flagler, FL, Eastern Marion, FL, Western Hamilton, FL, Trout River, FL, Western Clay, FL, Northeast Coastal St. Johns, FL, Western Alachua, FL, Western Putnam, FL, Central Marion, FL, Northern Columbia, FL, South Central Duval, FL, Southeast Coastal St. Johns, FL, Western Marion, FL, Southeastern Columbia, FL, Western Duval, FL, Northern Inland St. Johns, FL, Southwestern Columbia, FL, Southern Inland St. Johns, FL, Western St. Johns, FL, Inland Glynn, GA, Coastal Glynn, GA, Inland Camden, GA, Coastal Camden, GA
Expires 6:00 PM
42 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
26°
7%
7 AM
24°
24%
8 AM
25°
24%
9 AM
27°
24%
10 AM
29°
24%
11 AM
31°
24%
12 PM
31°
24%
1 PM
32°
25%
2 PM
34°
22%
3 PM
34°
29%
4 PM
34°
32%
5 PM
33°
36%
6 PM
32°
36%
7 PM
31°
36%
8 PM
29°
37%
9 PM
28°
39%
10 PM
28°
47%
11 PM
27°
46%
12 AM
27°
46%
1 AM
26°
37%
2 AM
26°
25%
3 AM
26°
25%
4 AM
26°
25%
5 AM
26°
22%
7-Day Forecast
Today
36° 24°
Partly Cloudy with a 39% chance of rain.
Wed
36° 24°
Partly Cloudy with a 50% chance of rain.
Thu
37° 24°
Mostly Clear with a 46% chance of rain.
Fri
36° 24°
Partly Cloudy with a 60% chance of rain.
Sat
35° 24°
Rain, 80% chance.
Sun
34° 25°
Rain, 63% chance.
Mon
36° 24°
Rain, 63% chance.
TimeTempConditionsPrecipWindHumidity
Now 26° Mostly Clear 7% 4 mph SW 89%
7 AM 24° Mostly Clear 24% 4 mph WSW 87%
8 AM 25° Mostly Clear 24% 5 mph WSW 84%
9 AM 27° Partly Cloudy 24% 5 mph WSW 76%
10 AM 29° Partly Cloudy 24% 6 mph W 67%
11 AM 31° Partly Cloudy 24% 6 mph W 59%
12 PM 31° Partly Cloudy 24% 5 mph WSW 54%
1 PM 32° Partly Cloudy 25% 5 mph WSW 49%
2 PM 34° Partly Cloudy 22% 5 mph WSW 45%
3 PM 34° Partly Cloudy 29% 4 mph WSW 45%
4 PM 34° Partly Cloudy 32% 4 mph WSW 46%
5 PM 33° Mostly Clear 36% 4 mph SW 49%
6 PM 32° Mostly Clear 36% 5 mph SSW 56%
7 PM 31° Mostly Clear 36% 6 mph SSW 64%
8 PM 29° Partly Cloudy 37% 6 mph S 70%
9 PM 28° Partly Cloudy 39% 5 mph SSW 72%
10 PM 28° Mostly Cloudy 47% 4 mph SSW 73%
11 PM 27° Mostly Cloudy 46% 4 mph SW 74%
12 AM 27° Mostly Cloudy 46% 5 mph SW 74%
1 AM 26° Mostly Cloudy 37% 5 mph WSW 75%
2 AM 26° Mostly Cloudy 25% 6 mph WSW 75%
3 AM 26° Partly Cloudy 25% 6 mph WSW 76%
4 AM 26° Partly Cloudy 25% 6 mph W 77%
5 AM 26° Partly Cloudy 22% 6 mph W 78%
15-Day Forecast
Today
8/11
Partly Cloudy
39%
24°
36°
Wed
8/12
Partly Cloudy
50%
24°
36°
Thu
8/13
Mostly Clear
46%
24°
37°
Fri
8/14
Partly Cloudy
60%
24°
36°
Sat
8/15
Rain
80%
24°
35°
Sun
8/16
Rain
63%
25°
34°
Mon
8/17
Rain
63%
24°
36°
Tue
8/18
Thunderstorm
75%
25°
37°
Wed
8/19
Rain
72%
24°
34°
Thu
8/20
Drizzle
56%
24°
32°
Fri
8/21
Drizzle
60%
25°
34°
Sat
8/22
Drizzle
60%
25°
34°
Sun
8/23
Drizzle
60%
24°
33°
Mon
8/24
Drizzle
60%
25°
33°
Tue
8/25
Drizzle
60%
24°
33°
42
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
42 AQI 7.5 µg/m³
O3
Ground-level ozone
36 AQI 39 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 42 Good 36 42
Wed 34 Good 24 34
Thu 27 Good 22 27
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 Tue Aug 11, 09:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE1618 J/kg
MLCAPE447 J/kg
MUCAPE1618 J/kg
SBCIN-152 J/kg
MLCIN0 J/kg
Lifted Index-4.8
Kinematics
0–6 km Shear8 kt
0–1 km Shear8 kt
Eff. Shear9 kt
0–1 km SRH39
0–3 km SRH43
Eff. SRH43
Storm Motion359° @ 12 kt
0–1 km EHI0.4
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index31.1
Thermo & Levels
PWAT1.92 in
0–3 km LR4.8 °C/km
700–500 LR6.2 °C/km
Total Totals46.0
LCL994 hPa
LFC798 hPa
EL160 hPa
Freezing Lvl15,827 ft