Heat Advisory — Clay, AR, Greene, AR, Craighead, AR, Poinsett, AR, Mississippi, AR, Cross, AR, Crittenden, AR, St. Francis, AR, Lee, AR, Phillips, AR, Dunklin, MO, Pemiscot, MO, DeSoto, MS, Marshall, MS, Benton, MS, Tippah, MS, Alcorn, MS, Tishomingo, MS, Tunica, MS, Tate, MS, Prentiss, MS, Coahoma, MS, Quitman, MS, Panola, MS, Lafayette, MS, Union, MS, Pontotoc, MS, Lee, MS, Itawamba, MS, Tallahatchie, MS, Yalobusha, MS, Calhoun, MS, Chickasaw, MS, Monroe, MS, 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 8:00 PM

Decatur County, West Tennessee, Tennessee, United States

Last updated: 1:58 AM CDT  ·  Refresh
24°C
Feels like 27°
Clear
▲ 37°  /  ▼ 23°
Wind
2 mph SE
Humidity
76%
Dew Point
21°
Pressure
29.54 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
0%
Sunrise
6:25 AM
Sunset
7:18 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Decatur County is currently clear at 24°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1087 J/kg) — isolated convective development possible. Sunrise: 6:25AM · Sunset: 7:18PM.

Alerts

Heat Advisory
Clay, AR, Greene, AR, Craighead, AR, Poinsett, AR, Mississippi, AR, Cross, AR, Crittenden, AR, St. Francis, AR, Lee, AR, Phillips, AR, Dunklin, MO, Pemiscot, MO, DeSoto, MS, Marshall, MS, Benton, MS, Tippah, MS, Alcorn, MS, Tishomingo, MS, Tunica, MS, Tate, MS, Prentiss, MS, Coahoma, MS, Quitman, MS, Panola, MS, Lafayette, MS, Union, MS, Pontotoc, MS, Lee, MS, Itawamba, MS, Tallahatchie, MS, Yalobusha, MS, Calhoun, MS, Chickasaw, MS, Monroe, MS, 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
Expires 8:00 PM
41 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
24°
11%
2 AM
23°
11%
3 AM
23°
3%
4 AM
21°
3%
5 AM
21°
3%
6 AM
21°
3%
7 AM
24°
3%
8 AM
28°
3%
9 AM
32°
3%
10 AM
33°
3%
11 AM
34°
3%
12 PM
37°
3%
1 PM
37°
3%
2 PM
37°
3%
3 PM
37°
3%
4 PM
37°
3%
5 PM
36°
3%
6 PM
34°
3%
7 PM
33°
3%
8 PM
29°
3%
9 PM
28°
3%
10 PM
28°
3%
11 PM
28°
3%
12 AM
28°
3%
7-Day Forecast
Today
37° 23°
Clear.
Thu
40° 23°
Mostly Clear.
Fri
41° 22°
Mostly Clear with a 29% chance of rain.
Sat
38° 21°
Rain, 55% chance.
Sun
39° 19°
Clear.
Mon
39° 19°
Clear.
Tue
38° 19°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 24° Clear 11% 2 mph SE 76%
2 AM 23° Clear 11% 2 mph SSE 76%
3 AM 23° Clear 3% 2 mph SSE 78%
4 AM 21° Clear 3% 3 mph SE 79%
5 AM 21° Clear 3% 3 mph SE 80%
6 AM 21° Clear 3% 3 mph SSE 81%
7 AM 24° Clear 3% 2 mph S 72%
8 AM 28° Clear 3% 4 mph SSW 60%
9 AM 32° Clear 3% 4 mph SSW 50%
10 AM 33° Clear 3% 4 mph SSW 45%
11 AM 34° Mostly Clear 3% 3 mph SSW 41%
12 PM 37° Mostly Clear 3% 3 mph S 37%
1 PM 37° Mostly Clear 3% 3 mph S 36%
2 PM 37° Mostly Clear 3% 3 mph S 36%
3 PM 37° Mostly Clear 3% 4 mph S 35%
4 PM 37° Clear 3% 4 mph S 38%
5 PM 36° Clear 3% 4 mph SSE 42%
6 PM 34° Clear 3% 4 mph SSE 46%
7 PM 33° Clear 3% 5 mph SSE 50%
8 PM 29° Clear 3% 5 mph SSE 53%
9 PM 28° Clear 3% 5 mph SSE 56%
10 PM 28° Clear 3% 5 mph SSE 58%
11 PM 28° Clear 3% 4 mph SSE 59%
12 AM 28° Clear 3% 4 mph S 61%
15-Day Forecast
Today
9/2
Clear
11%
23°
37°
Thu
9/3
Mostly Clear
6%
23°
40°
Fri
9/4
Mostly Clear
29%
22°
41°
Sat
9/5
Rain
55%
21°
38°
Sun
9/6
Clear
16%
19°
39°
Mon
9/7
Clear
17%
19°
39°
Tue
9/8
Clear
17%
19°
38°
Wed
9/9
Drizzle
43%
20°
39°
Thu
9/10
Rain
68%
21°
39°
Fri
9/11
Drizzle
51%
19°
37°
Sat
9/12
Drizzle
60%
20°
36°
Sun
9/13
Drizzle
60%
20°
37°
Mon
9/14
Drizzle
60%
21°
36°
Tue
9/15
Drizzle
60%
20°
35°
Wed
9/16
Drizzle
60%
19°
33°
41
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
41 AQI 7.4 µg/m³
O3
Ground-level ozone
36 AQI 39 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 41 Good 36 41
Thu 54 Moderate 47 54
Fri 57 Moderate 48 57
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 Wed Sep 2, 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
SBCAPE106 J/kg
MLCAPE125 J/kg
MUCAPE507 J/kg
SBCIN-589 J/kg
MLCIN-393 J/kg
Lifted Index-0.3
Kinematics
0–6 km Shear6 kt
0–1 km Shear7 kt
Eff. Shear8 kt
0–1 km SRH23
0–3 km SRH37
Eff. SRH24
Storm Motion174° @ 20 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index26.4
Thermo & Levels
PWAT1.56 in
0–3 km LR3.9 °C/km
700–500 LR6.4 °C/km
Total Totals46.0
LCL956 hPa
LFC443 hPa
EL245 hPa
Freezing Lvl15,876 ft