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

McNairy County, West Tennessee, Tennessee, United States

Last updated: 2:04 AM CDT  ·  Refresh
25°C
Feels like 27°
Clear
▲ 37°  /  ▼ 23°
Wind
4 mph SSE
Humidity
73%
Dew Point
21°
Pressure
29.49 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
0%
Sunrise
6:27 AM
Sunset
7:19 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: McNairy County is currently clear at 25°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1185 J/kg) — isolated convective development possible. Sunrise: 6:27AM · Sunset: 7:19PM.

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
44 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
25°
11%
3 AM
24°
3%
4 AM
24°
3%
5 AM
22°
3%
6 AM
22°
3%
7 AM
22°
3%
8 AM
24°
3%
9 AM
29°
3%
10 AM
32°
3%
11 AM
33°
3%
12 PM
34°
3%
1 PM
36°
3%
2 PM
37°
3%
3 PM
37°
3%
4 PM
37°
3%
5 PM
37°
3%
6 PM
37°
3%
7 PM
35°
3%
8 PM
34°
3%
9 PM
29°
3%
10 PM
29°
3%
11 PM
28°
3%
12 AM
28°
3%
1 AM
26°
3%
7-Day Forecast
Today
37° 23°
Clear.
Thu
41° 23°
Mostly Clear.
Fri
41° 22°
Mostly Clear with a 21% chance of rain.
Sat
39° 22°
Mostly Clear with a 62% chance of rain.
Sun
41° 19°
Clear with a 29% chance of rain.
Mon
40° 19°
Clear.
Tue
39° 19°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 25° Clear 11% 4 mph SSE 73%
3 AM 24° Clear 3% 3 mph SSE 74%
4 AM 24° Clear 3% 4 mph SSE 75%
5 AM 22° Clear 3% 4 mph SSE 76%
6 AM 22° Clear 3% 4 mph SSE 77%
7 AM 22° Clear 3% 4 mph SSE 78%
8 AM 24° Clear 3% 3 mph S 68%
9 AM 29° Clear 3% 4 mph S 58%
10 AM 32° Clear 3% 4 mph SSW 49%
11 AM 33° Clear 3% 3 mph SSW 44%
12 PM 34° Mostly Clear 3% 3 mph SSW 40%
1 PM 36° Mostly Clear 3% 3 mph S 37%
2 PM 37° Mostly Clear 3% 3 mph SSE 36%
3 PM 37° Mostly Clear 3% 4 mph SSE 34%
4 PM 37° Clear 3% 4 mph SSE 34%
5 PM 37° Clear 3% 4 mph SSE 37%
6 PM 37° Clear 3% 5 mph SE 40%
7 PM 35° Clear 3% 5 mph SE 44%
8 PM 34° Clear 3% 5 mph SE 48%
9 PM 29° Clear 3% 5 mph SE 52%
10 PM 29° Clear 3% 5 mph SE 54%
11 PM 28° Clear 3% 5 mph SSE 57%
12 AM 28° Clear 3% 5 mph SSE 59%
1 AM 26° Clear 3% 4 mph SE 61%
15-Day Forecast
Today
9/2
Clear
11%
23°
37°
Thu
9/3
Mostly Clear
12%
23°
41°
Fri
9/4
Mostly Clear
21%
22°
41°
Sat
9/5
Mostly Clear
62%
22°
39°
Sun
9/6
Clear
29%
19°
41°
Mon
9/7
Clear
17%
19°
40°
Tue
9/8
Clear
17%
19°
39°
Wed
9/9
Drizzle
43%
20°
39°
Thu
9/10
Rain
68%
21°
39°
Fri
9/11
Rain
68%
19°
39°
Sat
9/12
Drizzle
60%
21°
36°
Sun
9/13
Drizzle
60%
21°
37°
Mon
9/14
Drizzle
60%
21°
36°
Tue
9/15
Drizzle
60%
21°
36°
Wed
9/16
Drizzle
60%
20°
34°
44
Good
U.S. Air Quality Index · Dominant: O3
50 100 150 200

Air quality is satisfactory and poses little or no health risk.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
43 AQI 7.9 µg/m³
O3
Ground-level ozone
Dominant
44 AQI 48 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 44 Good 44 43
Thu 53 Moderate 45 53
Fri 57 Moderate 44 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
SBCAPE73 J/kg
MLCAPE22 J/kg
MUCAPE154 J/kg
SBCIN-595 J/kg
MLCIN0 J/kg
Lifted Index0.4
Kinematics
0–6 km Shear5 kt
0–1 km Shear12 kt
Eff. Shear17 kt
0–1 km SRH-30
0–3 km SRH-31
Eff. SRH8
Storm Motion127° @ 27 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index25.6
Thermo & Levels
PWAT1.56 in
0–3 km LR4.3 °C/km
700–500 LR6.1 °C/km
Total Totals44.6
LCL938 hPa
LFC457 hPa
EL250 hPa
Freezing Lvl16,102 ft