Heat Advisory — Lake, TN, Obion, TN, Weakley, TN, Henry, TN, Dyer, TN, Gibson, TN, Carroll, TN, Benton, TN, Lauderdale, TN, Tipton, TN, Haywood, TN, Crockett, TN, Madison, TN, Chester, TN, Henderson, TN, Decatur, TN, Shelby, TN, Fayette, TN, Hardeman, TN, McNairy, TN, Hardin, TN, Marshall, MS, Benton, MS, Tippah, MS, Alcorn, MS, Tishomingo, MS, Tate, MS, Prentiss, MS, Panola, MS, Tallahatchie, MS, Lafayette, MS, Union, MS, Pontotoc, MS, Lee, MS, Itawamba, MS, Yalobusha, MS, Calhoun, MS, Chickasaw, MS, Monroe, MS 8:00 PM

Decatur County, West Tennessee, Tennessee, United States

Last updated: 3:06 PM CDT  ·  Refresh
33°C
Feels like 38°
Mostly Clear
▲ 33°  /  ▼ 20°
Wind
3 mph W
Humidity
57%
Dew Point
23°
Pressure
29.49 inHg
Visibility
10 mi
UV Index
8.8
Cloud Cover
25%
Sunrise
5:41 AM
Sunset
8:11 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Decatur County is currently mostly clear at 33°C. Precipitation is likely — peak probability 54% around 3 PM. Atmospheric instability is elevated (CAPE up to 2425 J/kg) — isolated convective development possible. Sunrise: 5:41AM · Sunset: 8:11PM.

Alerts

Heat Advisory
Lake, TN, Obion, TN, Weakley, TN, Henry, TN, Dyer, TN, Gibson, TN, Carroll, TN, Benton, TN, Lauderdale, TN, Tipton, TN, Haywood, TN, Crockett, TN, Madison, TN, Chester, TN, Henderson, TN, Decatur, TN, Shelby, TN, Fayette, TN, Hardeman, TN, McNairy, TN, Hardin, TN, Marshall, MS, Benton, MS, Tippah, MS, Alcorn, MS, Tishomingo, MS, Tate, MS, Prentiss, MS, Panola, MS, Tallahatchie, MS, Lafayette, MS, Union, MS, Pontotoc, MS, Lee, MS, Itawamba, MS, Yalobusha, MS, Calhoun, MS, Chickasaw, MS, Monroe, MS
Expires 8:00 PM
53 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
33°
16%
4 PM
33°
15%
5 PM
33°
15%
6 PM
32°
15%
7 PM
31°
15%
8 PM
29°
20%
9 PM
26°
20%
10 PM
26°
12%
11 PM
24°
20%
12 AM
24°
23%
1 AM
23°
28%
2 AM
22°
29%
3 AM
22°
24%
4 AM
22°
33%
5 AM
21°
23%
6 AM
21°
26%
7 AM
21°
27%
8 AM
22°
28%
9 AM
26°
34%
10 AM
27°
24%
11 AM
28°
33%
12 PM
29°
33%
1 PM
30°
43%
2 PM
31°
48%
7-Day Forecast
Today
33° 20°
Partly Cloudy with a 20% chance of rain.
Sun
34° 21°
Partly Cloudy with a 64% chance of rain.
Mon
31° 18°
Mostly Cloudy with a 49% chance of rain.
Tue
32° 19°
Partly Cloudy with a 21% chance of rain.
Wed
32° 20°
Drizzle, 51% chance.
Thu
33° 21°
Rain, 82% chance.
Fri
32° 20°
Drizzle, 71% chance.
TimeTempConditionsPrecipWindHumidity
Now 33° Mostly Clear 16% 3 mph W 57%
4 PM 33° Mostly Clear 15% 4 mph W 56%
5 PM 33° Mostly Clear 15% 4 mph WSW 60%
6 PM 32° Partly Cloudy 15% 4 mph W 65%
7 PM 31° Partly Cloudy 15% 4 mph WSW 72%
8 PM 29° Mostly Cloudy 20% 4 mph SW 76%
9 PM 26° Mostly Cloudy 20% 2 mph SSW 79%
10 PM 26° Partly Cloudy 12% 3 mph S 83%
11 PM 24° Partly Cloudy 20% 2 mph S 84%
12 AM 24° Mostly Cloudy 23% 2 mph SW 86%
1 AM 23° Mostly Cloudy 28% 3 mph WNW 88%
2 AM 22° Mostly Cloudy 29% 2 mph W 90%
3 AM 22° Mostly Cloudy 24% 3 mph WNW 92%
4 AM 22° Mostly Cloudy 33% 3 mph WNW 93%
5 AM 21° Partly Cloudy 23% 2 mph SSW 93%
6 AM 21° Partly Cloudy 26% 2 mph SSW 93%
7 AM 21° Partly Cloudy 27% 2 mph S 92%
8 AM 22° Partly Cloudy 28% 3 mph SSW 86%
9 AM 26° Partly Cloudy 34% 4 mph SSW 81%
10 AM 27° Partly Cloudy 24% 4 mph SW 76%
11 AM 28° Partly Cloudy 33% 4 mph WSW 73%
12 PM 29° Partly Cloudy 33% 5 mph WSW 70%
1 PM 30° Partly Cloudy 43% 6 mph WSW 68%
2 PM 31° Partly Cloudy 48% 5 mph W 69%
15-Day Forecast
Today
7/4
Partly Cloudy
20%
20°
33°
Sun
7/5
Partly Cloudy
64%
21°
34°
Mon
7/6
Mostly Cloudy
49%
18°
31°
Tue
7/7
Partly Cloudy
21%
19°
32°
Wed
7/8
Drizzle
51%
20°
32°
Thu
7/9
Rain
82%
21°
33°
Fri
7/10
Drizzle
71%
20°
32°
Sat
7/11
Rain
90%
21°
32°
Sun
7/12
Rain
68%
19°
32°
Mon
7/13
Drizzle
51%
17°
30°
Tue
7/14
Drizzle
60%
14°
31°
Wed
7/15
Drizzle
60%
19°
31°
Thu
7/16
Drizzle
60%
19°
31°
Fri
7/17
Drizzle
60%
19°
31°
Sat
7/18
Drizzle
60%
19°
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 10.3 µg/m³
O3
Ground-level ozone
35 AQI 39 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Sun 53 Moderate 35 53
Mon 51 Moderate 27 51
Tue 40 Good 26 40
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 Sat Jul 4, 18:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE3199 J/kg
MLCAPE2121 J/kg
MUCAPE3199 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index-6.9
Kinematics
0–6 km Shear9 kt
0–1 km Shear3 kt
Eff. Shear4 kt
0–1 km SRH8
0–3 km SRH-22
Eff. SRH-22
Storm Motion211° @ 18 kt
0–1 km EHI0.2
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index32.8
Thermo & Levels
PWAT1.82 in
0–3 km LR7.9 °C/km
700–500 LR5.6 °C/km
Total Totals46.4
LCL865 hPa
LFC999 hPa
EL143 hPa
Freezing Lvl14,984 ft