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

Marshall County, Middle Tennessee, Tennessee, United States

Last updated: 5:04 PM CDT  ·  Refresh
32°C
Feels like 34°
Mostly Clear
▲ 34°  /  ▼ 19°
Wind
3 mph NNW
Humidity
46%
Dew Point
19°
Pressure
29.20 inHg
Visibility
9 mi
UV Index
5.1
Cloud Cover
13%
Sunrise
6:28 AM
Sunset
6:56 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Marshall County is currently mostly clear at 32°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1140 J/kg) — isolated convective development possible. Sunrise: 6:28AM · Sunset: 6:56PM.

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
39 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
32°
3%
6 PM
33°
3%
7 PM
32°
3%
8 PM
30°
3%
9 PM
27°
16%
10 PM
26°
15%
11 PM
25°
3%
12 AM
24°
3%
1 AM
23°
3%
2 AM
23°
3%
3 AM
22°
3%
4 AM
22°
3%
5 AM
21°
3%
6 AM
21°
3%
7 AM
21°
3%
8 AM
23°
3%
9 AM
25°
3%
10 AM
26°
3%
11 AM
27°
3%
12 PM
29°
5%
1 PM
33°
5%
2 PM
33°
5%
3 PM
33°
3%
4 PM
34°
3%
7-Day Forecast
Today
34° 19°
Mostly Clear.
Mon
35° 21°
Mostly Clear.
Tue
37° 21°
Mostly Clear.
Wed
36° 22°
Mostly Clear.
Thu
36° 22°
Mostly Clear.
Fri
36° 21°
Mostly Clear with a 38% chance of rain.
Sat
35° 21°
Mostly Clear with a 24% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 32° Mostly Clear 3% 3 mph NNW 46%
6 PM 33° Mostly Clear 3% 5 mph NNW 51%
7 PM 32° Mostly Clear 3% 5 mph NW 57%
8 PM 30° Mostly Clear 3% 4 mph NNW 61%
9 PM 27° Mostly Clear 16% 2 mph NW 66%
10 PM 26° Partly Cloudy 15% 2 mph WNW 71%
11 PM 25° Mostly Clear 3% 2 mph SW 73%
12 AM 24° Mostly Clear 3% 3 mph SSW 74%
1 AM 23° Partly Cloudy 3% 3 mph SW 76%
2 AM 23° Mostly Clear 3% 2 mph WNW 78%
3 AM 22° Mostly Clear 3% 2 mph NNW 80%
4 AM 22° Mostly Clear 3% 3 mph N 82%
5 AM 21° Mostly Clear 3% 3 mph N 83%
6 AM 21° Mostly Clear 3% 4 mph NNE 82%
7 AM 21° Mostly Clear 3% 4 mph NE 82%
8 AM 23° Mostly Clear 3% 6 mph NE 78%
9 AM 25° Partly Cloudy 3% 6 mph NE 74%
10 AM 26° Partly Cloudy 3% 6 mph NE 73%
11 AM 27° Partly Cloudy 3% 6 mph NE 68%
12 PM 29° Mostly Clear 5% 6 mph NE 64%
1 PM 33° Clear 5% 7 mph NE 60%
2 PM 33° Clear 5% 7 mph NE 58%
3 PM 33° Clear 3% 7 mph NE 57%
4 PM 34° Mostly Clear 3% 8 mph NE 56%
15-Day Forecast
Today
9/13
Mostly Clear
3%
19°
34°
Mon
9/14
Mostly Clear
3%
21°
35°
Tue
9/15
Mostly Clear
6%
21°
37°
Wed
9/16
Mostly Clear
3%
22°
36°
Thu
9/17
Mostly Clear
11%
22°
36°
Fri
9/18
Mostly Clear
38%
21°
36°
Sat
9/19
Mostly Clear
24%
21°
35°
Sun
9/20
Clear
43%
20°
34°
Mon
9/21
Drizzle
50%
19°
32°
Tue
9/22
Drizzle
60%
18°
29°
Wed
9/23
Drizzle
60%
14°
28°
Thu
9/24
Drizzle
60%
17°
28°
Fri
9/25
Drizzle
60%
16°
28°
Sat
9/26
Drizzle
60%
16°
28°
Sun
9/27
Drizzle
60%
15°
29°
39
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
36 AQI 6.5 µg/m³
O3
Ground-level ozone
Dominant
39 AQI 42 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Mon 39 Good 39 36
Tue 44 Good 42 44
Wed 52 Moderate 48 52
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
SBCAPE904 J/kg
MLCAPE27 J/kg
MUCAPE904 J/kg
SBCIN-42 J/kg
MLCIN-0 J/kg
Lifted Index-2.1
Kinematics
0–6 km Shear10 kt
0–1 km Shear5 kt
Eff. Shear11 kt
0–1 km SRH-17
0–3 km SRH-3
Eff. SRH-3
Storm Motion6° @ 20 kt
0–1 km EHI-0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index30.2
Thermo & Levels
PWAT1.60 in
0–3 km LR7.8 °C/km
700–500 LR5.2 °C/km
Total Totals44.6
LCL815 hPa
LFC787 hPa
EL190 hPa
Freezing Lvl15,023 ft