High Wind Watch 7:00 AM Flood Watch 7:00 AM

Gwinnett County, Georgia, United States

Last updated: 10:56 PM CDT  ·  Refresh
20°C
Feels like 21°
Overcast
▲ 28°  /  ▼ 13°
Wind
3 mph NE
Humidity
70%
Dew Point
16°
Pressure
29.01 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
88%
Sunrise
7:35 AM
Sunset
7:10 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Gwinnett County is currently overcast at 20°C. Precipitation is likely — peak probability 76% around 11 PM. Sunrise: 7:35AM · Sunset: 7:10PM.

Alerts

High Wind Watch
Expires 7:00 AM
Flood Watch
Expires 7:00 AM
48 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
20°
3%
12 AM
18°
21%
1 AM
18°
14%
2 AM
18°
3%
3 AM
17°
3%
4 AM
17°
3%
5 AM
16°
3%
6 AM
16°
3%
7 AM
16°
3%
8 AM
17°
5%
9 AM
18°
10%
10 AM
19°
10%
11 AM
20°
13%
12 PM
21°
14%
1 PM
24°
14%
2 PM
24°
23%
3 PM
24°
27%
4 PM
24°
27%
5 PM
23°
40%
6 PM
22°
40%
7 PM
21°
41%
8 PM
21°
50%
9 PM
19°
58%
10 PM
19°
59%
7-Day Forecast
Tonight
28° 13°
Overcast.
Fri
24° 16°
Drizzle, 75% chance.
Sat
21° 12°
Heavy Rain, 90% chance.
Sun
25° 13°
Mostly Cloudy with a 46% chance of rain.
Mon
32° 14°
Mostly Clear.
Tue
33° 13°
Clear.
Wed
34° 16°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 20° Overcast 3% 3 mph NE 70%
12 AM 18° Overcast 21% 3 mph ENE 68%
1 AM 18° Overcast 14% 4 mph NE 70%
2 AM 18° Overcast 3% 5 mph NE 72%
3 AM 17° Overcast 3% 5 mph NE 74%
4 AM 17° Overcast 3% 5 mph ENE 77%
5 AM 16° Overcast 3% 6 mph ENE 78%
6 AM 16° Overcast 3% 7 mph NE 78%
7 AM 16° Overcast 3% 9 mph ENE 76%
8 AM 17° Overcast 5% 10 mph ENE 69%
9 AM 18° Overcast 10% 10 mph ENE 61%
10 AM 19° Overcast 10% 11 mph ENE 54%
11 AM 20° Overcast 13% 11 mph ENE 48%
12 PM 21° Overcast 14% 12 mph ENE 43%
1 PM 24° Overcast 14% 12 mph ENE 39%
2 PM 24° Drizzle 23% 12 mph ENE 39%
3 PM 24° Drizzle 27% 12 mph ENE 40%
4 PM 24° Drizzle 27% 11 mph ENE 40%
5 PM 23° Drizzle 40% 11 mph ENE 41%
6 PM 22° Drizzle 40% 10 mph ENE 42%
7 PM 21° Drizzle 41% 10 mph ENE 43%
8 PM 21° Rain 50% 11 mph ENE 45%
9 PM 19° Rain 58% 11 mph ENE 48%
10 PM 19° Rain 59% 12 mph ENE 50%
15-Day Forecast
Today
10/8
Overcast
3%
13°
28°
Fri
10/9
Drizzle
75%
16°
24°
Sat
10/10
Heavy Rain
90%
12°
21°
Sun
10/11
Mostly Cloudy
46%
13°
25°
Mon
10/12
Mostly Clear
3%
14°
32°
Tue
10/13
Clear
3%
13°
33°
Wed
10/14
Clear
3%
16°
34°
Thu
10/15
Clear
3%
17°
33°
Fri
10/16
Drizzle
44%
16°
32°
Sat
10/17
Drizzle
44%
16°
33°
Sun
10/18
Clear
60%
11°
24°
Mon
10/19
Clear
25%
10°
23°
Tue
10/20
Clear
60%
11°
26°
Wed
10/21
Drizzle
60%
11°
25°
Thu
10/22
Clear
60%
12°
26°
48
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
48 AQI 8.7 µg/m³
O3
Ground-level ozone
44 AQI 48 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 48 Good 44 48
Sat 48 Good 31 48
Sun 31 Good 31 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. 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 LCL0°C Temperature (°C) Pressure (hPa)
Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio
RAP
Valid Fri Oct 9, 02:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 70 80 90 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE0 J/kg
MLCAPE10 J/kg
MUCAPE1 J/kg
SBCIN—
MLCIN0 J/kg
Lifted Index1.8
Kinematics
0–6 km Shear9 kt
0–1 km Shear7 kt
Eff. Shear—
0–1 km SRH4
0–3 km SRH39
Eff. SRH—
Storm Motion67° @ 19 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index8.8
Thermo & Levels
PWAT0.87 in
0–3 km LR4.2 °C/km
700–500 LR7.0 °C/km
Total Totals46.2
LCL920 hPa
LFC—
EL—
Freezing Lvl13,658 ft