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

Smithville, Tennessee

Last updated: 3:52 PM CDT  ·  Refresh
32°C
Feels like 33°
Clear
▲ 33°  /  ▼ 19°
Wind
4 mph NW
Humidity
50%
Dew Point
19°
Pressure
28.93 inHg
Visibility
10 mi
UV Index
6.8
Cloud Cover
10%
Sunrise
6:24 AM
Sunset
6:53 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Smithville is currently clear at 32°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1159 J/kg) — isolated convective development possible. Sunrise: 6:24AM · Sunset: 6:53PM.

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
44 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
32°
3%
4 PM
33°
3%
5 PM
32°
3%
6 PM
30°
3%
7 PM
29°
3%
8 PM
26°
3%
9 PM
26°
3%
10 PM
25°
3%
11 PM
24°
3%
12 AM
23°
3%
1 AM
23°
3%
2 AM
22°
3%
3 AM
22°
3%
4 AM
21°
5%
5 AM
21°
5%
6 AM
21°
5%
7 AM
22°
5%
8 AM
24°
9%
9 AM
25°
9%
10 AM
27°
9%
11 AM
27°
20%
12 PM
29°
20%
1 PM
29°
20%
2 PM
30°
9%
7-Day Forecast
Today
33° 19°
Clear.
Mon
33° 21°
Clear.
Tue
37° 21°
Mostly Clear.
Wed
34° 21°
Mostly Clear.
Thu
36° 21°
Clear.
Fri
34° 21°
Drizzle, 60% chance.
Sat
34° 20°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 32° Clear 3% 4 mph NW 50%
4 PM 33° Clear 3% 4 mph NNW 52%
5 PM 32° Clear 3% 4 mph N 57%
6 PM 30° Clear 3% 3 mph NE 63%
7 PM 29° Clear 3% 3 mph E 67%
8 PM 26° Clear 3% 3 mph ESE 70%
9 PM 26° Clear 3% 4 mph SE 72%
10 PM 25° Mostly Clear 3% 3 mph SSE 74%
11 PM 24° Partly Cloudy 3% 3 mph S 76%
12 AM 23° Mostly Cloudy 3% 3 mph SSW 78%
1 AM 23° Mostly Cloudy 3% 3 mph N 80%
2 AM 22° Mostly Cloudy 3% 3 mph NNE 82%
3 AM 22° Partly Cloudy 3% 3 mph NNE 84%
4 AM 21° Partly Cloudy 5% 3 mph NNE 85%
5 AM 21° Mostly Clear 5% 4 mph NE 86%
6 AM 21° Mostly Clear 5% 4 mph NE 88%
7 AM 22° Mostly Clear 5% 4 mph NE 84%
8 AM 24° Clear 9% 5 mph NE 79%
9 AM 25° Clear 9% 5 mph NE 75%
10 AM 27° Mostly Clear 9% 5 mph NE 73%
11 AM 27° Mostly Clear 20% 6 mph NNE 72%
12 PM 29° Rain 20% 6 mph NNE 70%
1 PM 29° Mostly Clear 20% 6 mph NNE 69%
2 PM 30° Mostly Clear 9% 6 mph NNE 67%
15-Day Forecast
Today
9/13
Clear
3%
19°
33°
Mon
9/14
Clear
11%
21°
33°
Tue
9/15
Mostly Clear
3%
21°
37°
Wed
9/16
Mostly Clear
8%
21°
34°
Thu
9/17
Clear
19%
21°
36°
Fri
9/18
Drizzle
60%
21°
34°
Sat
9/19
Clear
19%
20°
34°
Sun
9/20
Drizzle
60%
19°
32°
Mon
9/21
Drizzle
60%
19°
31°
Tue
9/22
Drizzle
60%
15°
28°
Wed
9/23
Drizzle
60%
11°
28°
Thu
9/24
Drizzle
60%
16°
27°
Fri
9/25
Drizzle
60%
15°
28°
Sat
9/26
Drizzle
60%
14°
28°
Sun
9/27
Drizzle
60%
14°
28°
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
41 AQI 7.5 µg/m³
O3
Ground-level ozone
Dominant
44 AQI 49 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Mon 44 Good 44 41
Tue 47 Good 37 47
Wed 54 Moderate 44 54
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, 19:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE1066 J/kg
MLCAPE61 J/kg
MUCAPE1066 J/kg
SBCIN0 J/kg
MLCIN-44 J/kg
Lifted Index-1.8
Kinematics
0–6 km Shear12 kt
0–1 km Shear2 kt
Eff. Shear12 kt
0–1 km SRH2
0–3 km SRH11
Eff. SRH11
Storm Motion359° @ 21 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index19.3
Thermo & Levels
PWAT1.28 in
0–3 km LR7.6 °C/km
700–500 LR5.1 °C/km
Total Totals41.6
LCL821 hPa
LFC980 hPa
EL182 hPa
Freezing Lvl15,157 ft