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: 7:44 PM CDT  ·  Refresh
29°C
Feels like 33°
Partly Cloudy
▲ 32°  /  ▼ 23°
Wind
6 mph SW
Humidity
70%
Dew Point
23°
Pressure
29.42 inHg
Visibility
10 mi
UV Index
1.2
Cloud Cover
60%
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 partly cloudy at 29°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2389 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
29°
16%
8 PM
28°
20%
9 PM
27°
12%
10 PM
26°
12%
11 PM
26°
12%
12 AM
26°
7%
1 AM
24°
7%
2 AM
24°
7%
3 AM
24°
8%
4 AM
24°
8%
5 AM
23°
8%
6 AM
23°
8%
7 AM
24°
8%
8 AM
26°
8%
9 AM
29°
8%
10 AM
30°
8%
11 AM
31°
9%
12 PM
32°
5%
1 PM
33°
5%
2 PM
34°
5%
3 PM
35°
5%
4 PM
34°
5%
5 PM
33°
3%
6 PM
32°
3%
7-Day Forecast
Tonight
32° 23°
Partly Cloudy.
Sun
35° 23°
Mostly Clear.
Mon
36° 23°
Clear.
Tue
35° 23°
Clear with a 21% chance of rain.
Wed
36° 23°
Clear with a 30% chance of rain.
Thu
35° 22°
Rain, 70% chance.
Fri
35° 21°
Rain, 42% chance.
TimeTempConditionsPrecipWindHumidity
Now 29° Partly Cloudy 16% 6 mph SW 70%
8 PM 28° Partly Cloudy 20% 6 mph SW 75%
9 PM 27° Partly Cloudy 12% 5 mph SSW 77%
10 PM 26° Partly Cloudy 12% 5 mph SSW 78%
11 PM 26° Partly Cloudy 12% 5 mph SSW 78%
12 AM 26° Mostly Cloudy 7% 6 mph SSW 79%
1 AM 24° Partly Cloudy 7% 6 mph SSW 80%
2 AM 24° Partly Cloudy 7% 6 mph SSW 82%
3 AM 24° Partly Cloudy 8% 7 mph SSW 83%
4 AM 24° Partly Cloudy 8% 7 mph SSW 83%
5 AM 23° Mostly Clear 8% 8 mph SW 84%
6 AM 23° Partly Cloudy 8% 9 mph SW 84%
7 AM 24° Mostly Clear 8% 9 mph SW 81%
8 AM 26° Mostly Clear 8% 10 mph SW 76%
9 AM 29° Partly Cloudy 8% 10 mph WSW 72%
10 AM 30° Partly Cloudy 8% 10 mph SW 68%
11 AM 31° Mostly Clear 9% 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 34° Mostly Clear 5% 10 mph SW 52%
3 PM 35° Clear 5% 10 mph WSW 49%
4 PM 34° Clear 5% 9 mph WSW 52%
5 PM 33° Clear 3% 8 mph WSW 57%
6 PM 32° Clear 3% 8 mph SW 62%
15-Day Forecast
Today
6/27
Partly 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
30%
23°
36°
Thu
7/2
Rain
70%
22°
35°
Fri
7/3
Rain
42%
21°
35°
Sat
7/4
Rain
72%
22°
34°
Sun
7/5
Rain
68%
22°
34°
Mon
7/6
Rain
68%
20°
34°
Tue
7/7
Rain
68%
20°
32°
Wed
7/8
Drizzle
60%
22°
33°
Thu
7/9
Drizzle
60%
22°
32°
Fri
7/10
Drizzle
60%
21°
31°
Sat
7/11
Rain
90%
21°
31°
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
SBCAPE2130 J/kg
MLCAPE1264 J/kg
MUCAPE2130 J/kg
SBCIN-84 J/kg
MLCIN0 J/kg
Lifted Index-6.1
Kinematics
0–6 km Shear27 kt
0–1 km Shear15 kt
Eff. Shear23 kt
0–1 km SRH10
0–3 km SRH-0
Eff. SRH-0
Storm Motion238° @ 31 kt
0–1 km EHI0.1
Composite Parameters
Sig. Tornado0.1
STP (eff)0.0
Supercell0.0
K-Index27.2
Thermo & Levels
PWAT1.84 in
0–3 km LR5.8 °C/km
700–500 LR6.6 °C/km
Total Totals48.1
LCL916 hPa
LFC857 hPa
EL159 hPa
Freezing Lvl15,262 ft