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, 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 11:00 AM

McNairy County, West Tennessee, Tennessee, United States

Last updated: 8:54 PM CDT  ·  Refresh
28°C
Feels like 31°
Mostly Cloudy
▲ 32°  /  ▼ 23°
Wind
6 mph SSW
Humidity
73%
Dew Point
23°
Pressure
29.42 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
67%
Sunrise
5:42 AM
Sunset
8:12 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: McNairy County is currently mostly cloudy at 28°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2401 J/kg) — isolated convective development possible. Sunrise: 5:42AM · Sunset: 8:12PM.

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, 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
Expires 11:00 AM
37 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
28°
16%
9 PM
27°
12%
10 PM
26°
12%
11 PM
26°
7%
12 AM
26°
7%
1 AM
24°
7%
2 AM
24°
7%
3 AM
24°
7%
4 AM
24°
8%
5 AM
23°
8%
6 AM
23°
8%
7 AM
25°
8%
8 AM
26°
8%
9 AM
29°
8%
10 AM
30°
8%
11 AM
31°
8%
12 PM
32°
5%
1 PM
33°
5%
2 PM
33°
5%
3 PM
35°
5%
4 PM
34°
5%
5 PM
33°
3%
6 PM
32°
3%
7 PM
31°
3%
7-Day Forecast
Tonight
32° 23°
Mostly Cloudy.
Sun
35° 23°
Mostly Clear.
Mon
36° 23°
Clear.
Tue
35° 23°
Clear with a 21% chance of rain.
Wed
35° 23°
Clear with a 22% chance of rain.
Thu
35° 21°
Rain, 70% chance.
Fri
35° 21°
Rain, 42% chance.
TimeTempConditionsPrecipWindHumidity
Now 28° Mostly Cloudy 16% 6 mph SSW 73%
9 PM 27° Partly Cloudy 12% 5 mph SSW 78%
10 PM 26° Partly Cloudy 12% 5 mph SSW 78%
11 PM 26° Partly Cloudy 7% 5 mph SSW 79%
12 AM 26° Partly Cloudy 7% 6 mph SSW 80%
1 AM 24° Partly Cloudy 7% 6 mph SSW 81%
2 AM 24° Partly Cloudy 7% 6 mph SSW 82%
3 AM 24° Partly Cloudy 7% 7 mph SSW 83%
4 AM 24° Partly Cloudy 8% 7 mph SSW 84%
5 AM 23° Mostly Clear 8% 8 mph SW 84%
6 AM 23° Mostly Clear 8% 9 mph SW 84%
7 AM 25° Mostly Clear 8% 10 mph SW 80%
8 AM 26° Mostly Clear 8% 10 mph SW 76%
9 AM 29° Partly Cloudy 8% 10 mph WSW 71%
10 AM 30° Partly Cloudy 8% 10 mph SW 67%
11 AM 31° Mostly Clear 8% 10 mph SW 63%
12 PM 32° Mostly Clear 5% 10 mph SW 59%
1 PM 33° Mostly Clear 5% 10 mph SW 56%
2 PM 33° Clear 5% 10 mph WSW 52%
3 PM 35° Clear 5% 10 mph WSW 49%
4 PM 34° Clear 5% 9 mph WSW 53%
5 PM 33° Clear 3% 8 mph WSW 58%
6 PM 32° Clear 3% 8 mph SW 63%
7 PM 31° Clear 3% 7 mph SW 66%
15-Day Forecast
Today
6/27
Mostly Cloudy
16%
23°
32°
Sun
6/28
Mostly Clear
8%
23°
35°
Mon
6/29
Clear
3%
23°
36°
Tue
6/30
Clear
21%
23°
35°
Wed
7/1
Clear
22%
23°
35°
Thu
7/2
Rain
70%
21°
35°
Fri
7/3
Rain
42%
21°
35°
Sat
7/4
Rain
72%
22°
35°
Sun
7/5
Rain
68%
22°
35°
Mon
7/6
Rain
68%
20°
34°
Tue
7/7
Rain
64%
20°
33°
Wed
7/8
Drizzle
60%
22°
33°
Thu
7/9
Drizzle
60%
21°
32°
Fri
7/10
Drizzle
60%
21°
32°
Sat
7/11
Drizzle
60%
21°
32°
37
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
37 AQI 6.6 µg/m³
O3
Ground-level ozone
23 AQI 26 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 37 Good 23 37
Mon 47 Good 27 47
Tue 49 Good 27 49
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 Jun 27, 23:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE1567 J/kg
MLCAPE1074 J/kg
MUCAPE1567 J/kg
SBCIN-113 J/kg
MLCIN0 J/kg
Lifted Index-4.9
Kinematics
0–6 km Shear29 kt
0–1 km Shear17 kt
Eff. Shear26 kt
0–1 km SRH20
0–3 km SRH7
Eff. SRH7
Storm Motion241° @ 31 kt
0–1 km EHI0.2
Composite Parameters
Sig. Tornado0.1
STP (eff)0.0
Supercell0.2
K-Index28.6
Thermo & Levels
PWAT1.82 in
0–3 km LR5.4 °C/km
700–500 LR6.6 °C/km
Total Totals46.6
LCL924 hPa
LFC837 hPa
EL172 hPa
Freezing Lvl15,486 ft