Heat Advisory — Dade, GA, Walker, GA, Catoosa, GA, Whitfield, GA, Murray, GA, Chattooga, GA, Gordon, GA, Floyd, GA, Bartow, GA, Cherokee, GA, Forsyth, GA, Hall, GA, Banks, GA, Jackson, GA, Madison, GA, Polk, GA, Paulding, GA, Cobb, GA, North Fulton, GA, Gwinnett, GA, Barrow, GA, Clarke, GA, Oconee, GA, Oglethorpe, GA, Wilkes, GA, Haralson, GA, Carroll, GA, Douglas, GA, South Fulton, GA, DeKalb, GA, Rockdale, GA, Walton, GA, Newton, GA, Morgan, GA, Greene, GA, Taliaferro, GA, Heard, GA, Coweta, GA, Fayette, GA, Clayton, GA, Spalding, GA, Henry, GA, Butts, GA, Jasper, GA, Putnam, GA, Hancock, GA, Warren, GA, Troup, GA, Meriwether, GA, Pike, GA, Upson, GA, Lamar, GA, Monroe, GA, Jones, GA, Baldwin, GA, Washington, GA, Glascock, GA, Jefferson, GA, Harris, GA, Talbot, GA, Taylor, GA, Crawford, GA, Bibb, GA, Twiggs, GA, Wilkinson, GA, Johnson, GA, Emanuel, GA, Muscogee, GA, Chattahoochee, GA, Marion, GA, Schley, GA, Macon, GA, Peach, GA, Houston, GA, Bleckley, GA, Laurens, GA, Treutlen, GA, Stewart, GA, Webster, GA, Sumter, GA, Dooly, GA, Crisp, GA, Pulaski, GA, Wilcox, GA, Dodge, GA, Telfair, GA, Wheeler, GA, Montgomery, GA, Toombs, GA 7:00 PM

Johns Creek, Georgia

Last updated: 6:26 PM CDT  ·  Refresh
33°C
Feels like 36°
Mostly Clear
▲ 33°  /  ▼ 23°
Wind
5 mph NW
Humidity
51%
Dew Point
21°
Pressure
28.88 inHg
Visibility
10 mi
UV Index
2.9
Cloud Cover
19%
Sunrise
6:59 AM
Sunset
8:22 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Johns Creek is currently mostly clear at 33°C. Precipitation is likely — peak probability 51% around 7 PM. Atmospheric instability is elevated (CAPE up to 1702 J/kg) — isolated convective development possible. Sunrise: 6:59AM · Sunset: 8:22PM.

Alerts

Heat Advisory
Dade, GA, Walker, GA, Catoosa, GA, Whitfield, GA, Murray, GA, Chattooga, GA, Gordon, GA, Floyd, GA, Bartow, GA, Cherokee, GA, Forsyth, GA, Hall, GA, Banks, GA, Jackson, GA, Madison, GA, Polk, GA, Paulding, GA, Cobb, GA, North Fulton, GA, Gwinnett, GA, Barrow, GA, Clarke, GA, Oconee, GA, Oglethorpe, GA, Wilkes, GA, Haralson, GA, Carroll, GA, Douglas, GA, South Fulton, GA, DeKalb, GA, Rockdale, GA, Walton, GA, Newton, GA, Morgan, GA, Greene, GA, Taliaferro, GA, Heard, GA, Coweta, GA, Fayette, GA, Clayton, GA, Spalding, GA, Henry, GA, Butts, GA, Jasper, GA, Putnam, GA, Hancock, GA, Warren, GA, Troup, GA, Meriwether, GA, Pike, GA, Upson, GA, Lamar, GA, Monroe, GA, Jones, GA, Baldwin, GA, Washington, GA, Glascock, GA, Jefferson, GA, Harris, GA, Talbot, GA, Taylor, GA, Crawford, GA, Bibb, GA, Twiggs, GA, Wilkinson, GA, Johnson, GA, Emanuel, GA, Muscogee, GA, Chattahoochee, GA, Marion, GA, Schley, GA, Macon, GA, Peach, GA, Houston, GA, Bleckley, GA, Laurens, GA, Treutlen, GA, Stewart, GA, Webster, GA, Sumter, GA, Dooly, GA, Crisp, GA, Pulaski, GA, Wilcox, GA, Dodge, GA, Telfair, GA, Wheeler, GA, Montgomery, GA, Toombs, GA
Expires 7:00 PM
53 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
33°
9%
8 PM
32°
27%
9 PM
31°
27%
10 PM
29°
20%
11 PM
28°
14%
12 AM
28°
14%
1 AM
27°
14%
2 AM
27°
3%
3 AM
26°
3%
4 AM
26°
3%
5 AM
26°
3%
6 AM
24°
3%
7 AM
24°
3%
8 AM
25°
3%
9 AM
27°
8%
10 AM
30°
8%
11 AM
31°
8%
12 PM
32°
8%
1 PM
33°
8%
2 PM
36°
20%
3 PM
36°
28%
4 PM
36°
28%
5 PM
36°
31%
6 PM
34°
34%
7-Day Forecast
Tonight
33° 23°
Mostly Clear with a 20% chance of rain.
Mon
38° 24°
Mostly Clear with a 51% chance of rain.
Tue
36° 23°
Mostly Clear with a 27% chance of rain.
Wed
34° 21°
Mostly Clear with a 46% chance of rain.
Thu
36° 23°
Partly Cloudy with a 45% chance of rain.
Fri
33° 23°
Rain, 82% chance.
Sat
33° 22°
Rain, 80% chance.
TimeTempConditionsPrecipWindHumidity
Now 33° Mostly Clear 9% 5 mph NW 51%
8 PM 32° Clear 27% 4 mph NW 54%
9 PM 31° Clear 27% 3 mph NW 56%
10 PM 29° Mostly Clear 20% 3 mph WNW 58%
11 PM 28° Mostly Clear 14% 4 mph W 61%
12 AM 28° Clear 14% 4 mph W 63%
1 AM 27° Clear 14% 4 mph W 64%
2 AM 27° Clear 3% 4 mph W 66%
3 AM 26° Mostly Clear 3% 4 mph WNW 68%
4 AM 26° Mostly Clear 3% 4 mph WNW 69%
5 AM 26° Mostly Clear 3% 4 mph WNW 70%
6 AM 24° Mostly Clear 3% 4 mph WNW 70%
7 AM 24° Mostly Clear 3% 5 mph WNW 70%
8 AM 25° Mostly Clear 3% 5 mph WNW 68%
9 AM 27° Clear 8% 6 mph WNW 61%
10 AM 30° Clear 8% 7 mph WNW 55%
11 AM 31° Clear 8% 8 mph WNW 50%
12 PM 32° Mostly Clear 8% 8 mph WNW 46%
1 PM 33° Mostly Clear 8% 8 mph WNW 43%
2 PM 36° Mostly Clear 20% 8 mph WNW 41%
3 PM 36° Mostly Clear 28% 8 mph WNW 40%
4 PM 36° Mostly Clear 28% 8 mph W 39%
5 PM 36° Mostly Clear 31% 8 mph W 40%
6 PM 34° Mostly Clear 34% 8 mph WNW 44%
15-Day Forecast
Today
8/16
Mostly Clear
20%
23°
33°
Mon
8/17
Mostly Clear
51%
24°
38°
Tue
8/18
Mostly Clear
27%
23°
36°
Wed
8/19
Mostly Clear
46%
21°
34°
Thu
8/20
Partly Cloudy
45%
23°
36°
Fri
8/21
Rain
82%
23°
33°
Sat
8/22
Rain
80%
22°
33°
Sun
8/23
Mostly Clear
25%
21°
33°
Mon
8/24
Clear
35%
21°
33°
Tue
8/25
Mostly Cloudy
35%
21°
34°
Wed
8/26
Drizzle
67%
19°
33°
Thu
8/27
Drizzle
60%
23°
33°
Fri
8/28
Drizzle
60%
22°
32°
Sat
8/29
Drizzle
60%
21°
31°
Sun
8/30
Drizzle
60%
21°
31°
53
Moderate
U.S. Air Quality Index · Dominant: PM2.5
50 100 150 200

Air quality is acceptable. Unusually sensitive people should consider limiting prolonged outdoor exertion.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
Dominant
53 AQI 10.4 µg/m³
O3
Ground-level ozone
29 AQI 31 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Mon 53 Moderate 29 53
Tue 53 Moderate 35 53
Wed 51 Moderate 36 51
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 Aug 16, 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
SBCAPE1923 J/kg
MLCAPE1309 J/kg
MUCAPE1923 J/kg
SBCIN-18 J/kg
MLCIN-48 J/kg
Lifted Index-3.8
Kinematics
0–6 km Shear6 kt
0–1 km Shear8 kt
Eff. Shear3 kt
0–1 km SRH6
0–3 km SRH18
Eff. SRH18
Storm Motion289° @ 24 kt
0–1 km EHI0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index25.1
Thermo & Levels
PWAT1.44 in
0–3 km LR7.6 °C/km
700–500 LR5.4 °C/km
Total Totals43.9
LCL828 hPa
LFC798 hPa
EL146 hPa
Freezing Lvl15,791 ft