Heat Advisory — Stewart, TN, Montgomery, TN, Robertson, TN, Sumner, TN, Macon, TN, Clay, TN, Houston, TN, Humphreys, TN, Dickson, TN, Cheatham, TN, Davidson, TN, Wilson, TN, Trousdale, TN, Smith, TN, Jackson, TN, Putnam, TN, Perry, TN, Hickman, TN, Lewis, TN, Williamson, TN, Maury, TN, Marshall, TN, Rutherford, TN, Cannon, TN, De Kalb, TN, Bedford, TN, Wayne, TN, Lawrence, TN, Giles, TN 8:00 PM

Lewis County, Middle Tennessee, Tennessee, 38462, United States

Last updated: 5:00 PM CDT  ·  Refresh
33°C
Feels like 36°
Mostly Clear
▲ 35°  /  ▼ 19°
Wind
3 mph NW
Humidity
50%
Dew Point
19°
Pressure
29.05 inHg
Visibility
9 mi
UV Index
5.3
Cloud Cover
22%
Sunrise
6:31 AM
Sunset
6:59 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Lewis County is currently mostly clear at 33°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1592 J/kg) — isolated convective development possible. Sunrise: 6:31AM · Sunset: 6:59PM.

Alerts

Heat Advisory
Stewart, TN, Montgomery, TN, Robertson, TN, Sumner, TN, Macon, TN, Clay, TN, Houston, TN, Humphreys, TN, Dickson, TN, Cheatham, TN, Davidson, TN, Wilson, TN, Trousdale, TN, Smith, TN, Jackson, TN, Putnam, TN, Perry, TN, Hickman, TN, Lewis, TN, Williamson, TN, Maury, TN, Marshall, TN, Rutherford, TN, Cannon, TN, De Kalb, TN, Bedford, TN, Wayne, TN, Lawrence, TN, Giles, TN
Expires 8:00 PM
36 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
33°
3%
6 PM
33°
3%
7 PM
31°
4%
8 PM
30°
4%
9 PM
27°
5%
10 PM
27°
5%
11 PM
26°
6%
12 AM
25°
6%
1 AM
24°
3%
2 AM
24°
3%
3 AM
23°
3%
4 AM
23°
3%
5 AM
22°
3%
6 AM
22°
3%
7 AM
22°
3%
8 AM
24°
3%
9 AM
25°
3%
10 AM
26°
3%
11 AM
27°
3%
12 PM
29°
3%
1 PM
33°
3%
2 PM
33°
3%
3 PM
33°
3%
4 PM
34°
3%
7-Day Forecast
Today
35° 19°
Mostly Clear.
Mon
36° 22°
Mostly Clear.
Tue
39° 23°
Mostly Clear.
Wed
38° 24°
Mostly Clear.
Thu
39° 22°
Mostly Clear.
Fri
38° 22°
Drizzle, 52% chance.
Sat
37° 21°
Partly Cloudy with a 24% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 33° Mostly Clear 3% 3 mph NW 50%
6 PM 33° Mostly Clear 3% 4 mph NW 56%
7 PM 31° Clear 4% 4 mph N 63%
8 PM 30° Partly Cloudy 4% 3 mph N 65%
9 PM 27° Mostly Cloudy 5% 4 mph NNW 66%
10 PM 27° Partly Cloudy 5% 4 mph N 68%
11 PM 26° Partly Cloudy 6% 2 mph NE 70%
12 AM 25° Partly Cloudy 6% 3 mph NE 73%
1 AM 24° Partly Cloudy 3% 3 mph NNE 76%
2 AM 24° Partly Cloudy 3% 3 mph NNE 80%
3 AM 23° Partly Cloudy 3% 4 mph NNE 84%
4 AM 23° Partly Cloudy 3% 4 mph NNE 87%
5 AM 22° Mostly Clear 3% 4 mph NE 87%
6 AM 22° Mostly Clear 3% 5 mph NE 88%
7 AM 22° Mostly Clear 3% 5 mph NE 88%
8 AM 24° Mostly Clear 3% 6 mph ENE 84%
9 AM 25° Partly Cloudy 3% 6 mph ENE 80%
10 AM 26° Partly Cloudy 3% 6 mph ENE 78%
11 AM 27° Partly Cloudy 3% 6 mph ENE 73%
12 PM 29° Mostly Clear 3% 7 mph ENE 69%
1 PM 33° Clear 3% 7 mph ENE 64%
2 PM 33° Clear 3% 7 mph ENE 63%
3 PM 33° Clear 3% 7 mph ENE 61%
4 PM 34° Mostly Clear 3% 7 mph ENE 59%
15-Day Forecast
Today
9/13
Mostly Clear
6%
19°
35°
Mon
9/14
Mostly Clear
3%
22°
36°
Tue
9/15
Mostly Clear
6%
23°
39°
Wed
9/16
Mostly Clear
3%
24°
38°
Thu
9/17
Mostly Clear
16%
22°
39°
Fri
9/18
Drizzle
52%
22°
38°
Sat
9/19
Partly Cloudy
24%
21°
37°
Sun
9/20
Drizzle
53%
20°
36°
Mon
9/21
Drizzle
60%
19°
34°
Tue
9/22
Drizzle
60%
18°
32°
Wed
9/23
Drizzle
60%
15°
31°
Thu
9/24
Drizzle
60%
17°
31°
Fri
9/25
Drizzle
60%
16°
31°
Sat
9/26
Clear
25%
16°
31°
Sun
9/27
Drizzle
60%
16°
32°
36
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
32 AQI 5.7 µg/m³
O3
Ground-level ozone
Dominant
36 AQI 39 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Mon 36 Good 36 32
Tue 43 Good 43 42
Wed 51 Moderate 44 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 Sun Sep 13, 20:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE866 J/kg
MLCAPE37 J/kg
MUCAPE866 J/kg
SBCIN-32 J/kg
MLCIN-132 J/kg
Lifted Index-2.1
Kinematics
0–6 km Shear12 kt
0–1 km Shear5 kt
Eff. Shear12 kt
0–1 km SRH-8
0–3 km SRH-3
Eff. SRH-3
Storm Motion1° @ 20 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index32.8
Thermo & Levels
PWAT1.61 in
0–3 km LR8.1 °C/km
700–500 LR5.1 °C/km
Total Totals45.6
LCL805 hPa
LFC782 hPa
EL194 hPa
Freezing Lvl14,885 ft