Heat Advisory — Marshall, MS, Benton, MS, Tippah, MS, Alcorn, MS, Tishomingo, MS, Prentiss, MS, Lafayette, MS, Union, MS, Pontotoc, MS, Lee, MS, Itawamba, MS, Yalobusha, MS, Calhoun, MS, Chickasaw, MS, Monroe, MS, Benton, TN, Chester, TN, Henderson, TN, Decatur, TN, Hardeman, TN, McNairy, TN, Hardin, TN 8:00 PM Extreme Heat Warning — Marshall, MS, Benton, MS, Tippah, MS, Alcorn, MS, Tishomingo, MS, Prentiss, MS, Lafayette, MS, Union, MS, Pontotoc, MS, Lee, MS, Itawamba, MS, Yalobusha, MS, Calhoun, MS, Chickasaw, MS, Monroe, MS, Benton, TN, Chester, TN, Henderson, TN, Decatur, TN, Hardeman, TN, McNairy, TN, Hardin, TN 8:00 PM

Decatur County, West Tennessee, Tennessee, United States

Last updated: 1:41 AM CDT  ·  Refresh
26°C
Feels like 30°
Mostly Cloudy
▲ 36°  /  ▼ 24°
Wind
4 mph E
Humidity
91%
Dew Point
24°
Pressure
29.42 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
61%
Sunrise
5:56 AM
Sunset
8:00 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Decatur County is currently mostly cloudy at 25°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 3481 J/kg) — isolated convective development possible. Sunrise: 5:56AM · Sunset: 8:00PM.

Alerts

Heat Advisory
Marshall, MS, Benton, MS, Tippah, MS, Alcorn, MS, Tishomingo, MS, Prentiss, MS, Lafayette, MS, Union, MS, Pontotoc, MS, Lee, MS, Itawamba, MS, Yalobusha, MS, Calhoun, MS, Chickasaw, MS, Monroe, MS, Benton, TN, Chester, TN, Henderson, TN, Decatur, TN, Hardeman, TN, McNairy, TN, Hardin, TN
Expires 8:00 PM
Extreme Heat Warning
Marshall, MS, Benton, MS, Tippah, MS, Alcorn, MS, Tishomingo, MS, Prentiss, MS, Lafayette, MS, Union, MS, Pontotoc, MS, Lee, MS, Itawamba, MS, Yalobusha, MS, Calhoun, MS, Chickasaw, MS, Monroe, MS, Benton, TN, Chester, TN, Henderson, TN, Decatur, TN, Hardeman, TN, McNairy, TN, Hardin, TN
Expires 8:00 PM
51 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
26°
35%
2 AM
26°
42%
3 AM
25°
42%
4 AM
25°
34%
5 AM
24°
49%
6 AM
24°
30%
7 AM
25°
16%
8 AM
27°
17%
9 AM
29°
17%
10 AM
30°
26%
11 AM
32°
26%
12 PM
33°
29%
1 PM
35°
34%
2 PM
35°
34%
3 PM
34°
22%
4 PM
34°
27%
5 PM
34°
23%
6 PM
33°
24%
7 PM
33°
24%
8 PM
32°
21%
9 PM
29°
21%
10 PM
28°
11%
11 PM
28°
12%
12 AM
28°
3%
7-Day Forecast
Today
36° 24°
Mostly Clear with a 35% chance of rain.
Tue
38° 24°
Partly Cloudy with a 51% chance of rain.
Wed
34° 20°
Partly Cloudy with a 36% chance of rain.
Thu
31° 18°
Clear with a 33% chance of rain.
Fri
29° 19°
Rain, 43% chance.
Sat
30° 19°
Heavy Rain, 82% chance.
Sun
28° 18°
Rain, 28% chance.
TimeTempConditionsPrecipWindHumidity
Now 26° Mostly Cloudy 35% 4 mph E 91%
2 AM 26° Mostly Cloudy 42% 4 mph NW 91%
3 AM 25° Overcast 42% 4 mph ESE 92%
4 AM 25° Mostly Cloudy 34% 3 mph ESE 93%
5 AM 24° Rain 49% 2 mph SSW 93%
6 AM 24° Mostly Cloudy 30% 3 mph S 93%
7 AM 25° Partly Cloudy 16% 4 mph SSW 90%
8 AM 27° Partly Cloudy 17% 5 mph SW 84%
9 AM 29° Mostly Clear 17% 6 mph WSW 79%
10 AM 30° Mostly Clear 26% 7 mph WSW 74%
11 AM 32° Mostly Clear 26% 6 mph W 69%
12 PM 33° Partly Cloudy 29% 6 mph W 65%
1 PM 35° Partly Cloudy 34% 6 mph W 63%
2 PM 35° Partly Cloudy 34% 6 mph W 64%
3 PM 34° Partly Cloudy 22% 6 mph W 64%
4 PM 34° Mostly Clear 27% 6 mph W 67%
5 PM 34° Mostly Clear 23% 6 mph W 71%
6 PM 33° Clear 24% 5 mph W 76%
7 PM 33° Clear 24% 5 mph WSW 80%
8 PM 32° Mostly Clear 21% 5 mph WSW 82%
9 PM 29° Mostly Clear 21% 5 mph SW 84%
10 PM 28° Mostly Clear 11% 5 mph SW 85%
11 PM 28° Mostly Clear 12% 5 mph SW 86%
12 AM 28° Mostly Clear 3% 5 mph SW 87%
15-Day Forecast
Today
7/27
Mostly Clear
35%
24°
36°
Tue
7/28
Partly Cloudy
51%
24°
38°
Wed
7/29
Partly Cloudy
36%
20°
34°
Thu
7/30
Clear
33%
18°
31°
Fri
7/31
Rain
43%
19°
29°
Sat
8/1
Heavy Rain
82%
19°
30°
Sun
8/2
Rain
28%
18°
28°
Mon
8/3
Rain
69%
19°
32°
Tue
8/4
Rain
68%
20°
33°
Wed
8/5
Thunderstorm
44%
21°
34°
Thu
8/6
Drizzle
60%
21°
33°
Fri
8/7
Drizzle
60%
21°
33°
Sat
8/8
Drizzle
60%
21°
33°
Sun
8/9
Drizzle
60%
22°
33°
Mon
8/10
Drizzle
60%
22°
34°
51
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
51 AQI 9.4 µg/m³
O3
Ground-level ozone
31 AQI 35 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 51 Moderate 31 51
Tue 54 Moderate 32 54
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 Mon Jul 27, 05:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE1333 J/kg
MLCAPE2188 J/kg
MUCAPE2808 J/kg
SBCIN-281 J/kg
MLCIN0 J/kg
Lifted Index-4.3
Kinematics
0–6 km Shear36 kt
0–1 km Shear18 kt
Eff. Shear39 kt
0–1 km SRH27
0–3 km SRH30
Eff. SRH9
Storm Motion280° @ 24 kt
0–1 km EHI0.2
Composite Parameters
Sig. Tornado0.3
STP (eff)0.0
Supercell0.5
K-Index35.0
Thermo & Levels
PWAT2.09 in
0–3 km LR4.6 °C/km
700–500 LR6.2 °C/km
Total Totals45.5
LCL972 hPa
LFC735 hPa
EL173 hPa
Freezing Lvl15,666 ft