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: 3:52 PM CDT  ·  Refresh
33°C
Feels like 35°
Mostly Clear
▲ 35°  /  ▼ 19°
Wind
3 mph NW
Humidity
42%
Dew Point
19°
Pressure
29.20 inHg
Visibility
9 mi
UV Index
6.9
Cloud Cover
12%
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 33°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1313 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
33°
3%
4 PM
35°
3%
5 PM
34°
3%
6 PM
32°
3%
7 PM
30°
3%
8 PM
26°
16%
9 PM
26°
16%
10 PM
25°
3%
11 PM
24°
3%
12 AM
23°
3%
1 AM
22°
3%
2 AM
22°
3%
3 AM
22°
3%
4 AM
21°
3%
5 AM
21°
3%
6 AM
21°
3%
7 AM
22°
3%
8 AM
24°
3%
9 AM
26°
3%
10 AM
29°
3%
11 AM
29°
3%
12 PM
32°
3%
1 PM
32°
3%
2 PM
32°
3%
7-Day Forecast
Today
35° 19°
Mostly Clear.
Mon
36° 21°
Mostly Clear.
Tue
37° 21°
Clear.
Wed
35° 20°
Partly Cloudy.
Thu
36° 22°
Clear.
Fri
36° 21°
Clear with a 35% chance of rain.
Sat
35° 21°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 33° Mostly Clear 3% 3 mph NW 42%
4 PM 35° Mostly Clear 3% 5 mph NNW 45%
5 PM 34° Mostly Clear 3% 5 mph NNW 50%
6 PM 32° Mostly Clear 3% 5 mph NNW 56%
7 PM 30° Mostly Clear 3% 4 mph NNW 60%
8 PM 26° Mostly Clear 16% 3 mph NNW 65%
9 PM 26° Partly Cloudy 16% 2 mph NW 70%
10 PM 25° Partly Cloudy 3% 3 mph NW 72%
11 PM 24° Partly Cloudy 3% 3 mph W 74%
12 AM 23° Partly Cloudy 3% 3 mph SW 75%
1 AM 22° Partly Cloudy 3% 3 mph W 77%
2 AM 22° Partly Cloudy 3% 3 mph NW 79%
3 AM 22° Partly Cloudy 3% 3 mph NW 81%
4 AM 21° Mostly Clear 3% 3 mph NW 81%
5 AM 21° Mostly Clear 3% 3 mph N 81%
6 AM 21° Clear 3% 3 mph NNE 81%
7 AM 22° Mostly Clear 3% 4 mph NE 75%
8 AM 24° Mostly Clear 3% 4 mph NE 68%
9 AM 26° Mostly Clear 3% 4 mph NE 62%
10 AM 29° Mostly Clear 3% 4 mph NNE 60%
11 AM 29° Mostly Clear 3% 4 mph NNE 57%
12 PM 32° Clear 3% 5 mph NNE 55%
1 PM 32° Mostly Clear 3% 5 mph NNE 55%
2 PM 32° Mostly Clear 3% 6 mph NNE 55%
15-Day Forecast
Today
9/13
Mostly Clear
16%
19°
35°
Mon
9/14
Mostly Clear
3%
21°
36°
Tue
9/15
Clear
3%
21°
37°
Wed
9/16
Partly Cloudy
3%
20°
35°
Thu
9/17
Clear
9%
22°
36°
Fri
9/18
Clear
35%
21°
36°
Sat
9/19
Clear
19%
21°
35°
Sun
9/20
Clear
60%
20°
33°
Mon
9/21
Drizzle
60%
19°
32°
Tue
9/22
Drizzle
60%
14°
29°
Wed
9/23
Drizzle
60%
9°
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, 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
SBCAPE774 J/kg
MLCAPE68 J/kg
MUCAPE774 J/kg
SBCIN-8 J/kg
MLCIN-52 J/kg
Lifted Index-1.7
Kinematics
0–6 km Shear9 kt
0–1 km Shear3 kt
Eff. Shear7 kt
0–1 km SRH9
0–3 km SRH34
Eff. SRH34
Storm Motion5° @ 20 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index16.8
Thermo & Levels
PWAT1.31 in
0–3 km LR8.0 °C/km
700–500 LR5.2 °C/km
Total Totals42.2
LCL800 hPa
LFC766 hPa
EL191 hPa
Freezing Lvl15,495 ft