Severe Thunderstorm Watch 1:00 AM Severe Thunderstorm Watch 1:00 AM 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 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

Decatur County, West Tennessee, Tennessee, United States

Last updated: 12:34 AM CDT  ·  Refresh
27°C
Feels like 32°
Mostly Cloudy
▲ 36°  /  ▼ 24°
Wind
3 mph SSE
Humidity
90%
Dew Point
24°
Pressure
29.42 inHg
Visibility
6 mi
UV Index
0.0
Cloud Cover
60%
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 27°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 3443 J/kg) — isolated convective development possible. Sunrise: 5:56AM · Sunset: 8:00PM.

Alerts

Severe Thunderstorm Watch
Expires 1:00 AM
Severe Thunderstorm Watch
Expires 1:00 AM
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
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
51 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
27°
29%
1 AM
26°
45%
2 AM
26°
42%
3 AM
25°
41%
4 AM
25°
32%
5 AM
24°
32%
6 AM
24°
31%
7 AM
25°
29%
8 AM
27°
17%
9 AM
29°
17%
10 AM
30°
26%
11 AM
31°
29%
12 PM
33°
38%
1 PM
34°
38%
2 PM
34°
28%
3 PM
34°
14%
4 PM
34°
18%
5 PM
34°
14%
6 PM
33°
9%
7 PM
33°
9%
8 PM
33°
5%
9 PM
29°
5%
10 PM
29°
5%
11 PM
28°
5%
7-Day Forecast
Today
36° 24°
Partly Cloudy with a 41% chance of rain.
Tue
38° 24°
Partly Cloudy with a 26% chance of rain.
Wed
34° 20°
Partly Cloudy with a 36% chance of rain.
Thu
32° 18°
Clear with a 33% chance of rain.
Fri
29° 19°
Rain, 30% chance.
Sat
30° 19°
Rain, 82% chance.
Sun
28° 18°
Rain, 28% chance.
TimeTempConditionsPrecipWindHumidity
Now 27° Mostly Cloudy 29% 3 mph SSE 90%
1 AM 26° Mostly Cloudy 45% 3 mph S 90%
2 AM 26° Mostly Cloudy 42% 4 mph SSW 92%
3 AM 25° Partly Cloudy 41% 3 mph S 92%
4 AM 25° Mostly Cloudy 32% 2 mph SE 93%
5 AM 24° Overcast 32% 2 mph S 93%
6 AM 24° Mostly Cloudy 31% 3 mph SSE 93%
7 AM 25° Partly Cloudy 29% 4 mph SSW 90%
8 AM 27° Partly Cloudy 17% 5 mph SW 85%
9 AM 29° Partly Cloudy 17% 6 mph WSW 80%
10 AM 30° Mostly Clear 26% 7 mph WSW 75%
11 AM 31° Mostly Clear 29% 6 mph WSW 70%
12 PM 33° Partly Cloudy 38% 6 mph W 66%
1 PM 34° Partly Cloudy 38% 6 mph W 65%
2 PM 34° Partly Cloudy 28% 6 mph W 64%
3 PM 34° Partly Cloudy 14% 6 mph W 65%
4 PM 34° Mostly Clear 18% 6 mph W 67%
5 PM 34° Mostly Clear 14% 6 mph W 71%
6 PM 33° Clear 9% 6 mph W 76%
7 PM 33° Clear 9% 5 mph WSW 80%
8 PM 33° Mostly Clear 5% 5 mph SW 82%
9 PM 29° Mostly Clear 5% 5 mph SW 83%
10 PM 29° Mostly Clear 5% 5 mph SSW 84%
11 PM 28° Mostly Clear 5% 5 mph SSW 86%
15-Day Forecast
Today
7/27
Partly Cloudy
41%
24°
36°
Tue
7/28
Partly Cloudy
26%
24°
38°
Wed
7/29
Partly Cloudy
36%
20°
34°
Thu
7/30
Clear
33%
18°
32°
Fri
7/31
Rain
30%
19°
29°
Sat
8/1
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
Clear
36%
21°
34°
Thu
8/6
Thunderstorm
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, 04:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE2223 J/kg
MLCAPE3267 J/kg
MUCAPE3704 J/kg
SBCIN-183 J/kg
MLCIN0 J/kg
Lifted Index-6.1
Kinematics
0–6 km Shear33 kt
0–1 km Shear13 kt
Eff. Shear39 kt
0–1 km SRH-8
0–3 km SRH-4
Eff. SRH-4
Storm Motion275° @ 20 kt
0–1 km EHI-0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index36.1
Thermo & Levels
PWAT2.22 in
0–3 km LR5.0 °C/km
700–500 LR6.3 °C/km
Total Totals47.4
LCL966 hPa
LFC753 hPa
EL161 hPa
Freezing Lvl15,322 ft