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

Montgomery County, Middle Tennessee, Tennessee, United States

Last updated: 3:52 PM CDT  ·  Refresh
34°C
Feels like 38°
Mostly Clear
▲ 35°  /  ▼ 20°
Wind
7 mph WNW
Humidity
47%
Dew Point
20°
Pressure
29.45 inHg
Visibility
10 mi
UV Index
6.9
Cloud Cover
13%
Sunrise
6:30 AM
Sunset
6:59 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Montgomery County is currently mostly clear at 34°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1427 J/kg) — isolated convective development possible. Sunrise: 6:30AM · 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
45 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
34°
8%
4 PM
35°
29%
5 PM
34°
29%
6 PM
32°
13%
7 PM
31°
13%
8 PM
27°
13%
9 PM
26°
13%
10 PM
26°
13%
11 PM
25°
8%
12 AM
24°
8%
1 AM
23°
8%
2 AM
23°
14%
3 AM
22°
15%
4 AM
22°
15%
5 AM
21°
11%
6 AM
21°
9%
7 AM
22°
9%
8 AM
23°
9%
9 AM
23°
9%
10 AM
26°
9%
11 AM
27°
3%
12 PM
30°
3%
1 PM
31°
3%
2 PM
31°
3%
7-Day Forecast
Today
35° 20°
Mostly Clear.
Mon
34° 21°
Clear.
Tue
39° 21°
Clear.
Wed
37° 23°
Partly Cloudy.
Thu
38° 23°
Clear.
Fri
37° 22°
Clear with a 35% chance of rain.
Sat
37° 21°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 34° Mostly Clear 8% 7 mph WNW 47%
4 PM 35° Partly Cloudy 29% 7 mph NW 51%
5 PM 34° Partly Cloudy 29% 6 mph NW 56%
6 PM 32° Clear 13% 4 mph NNW 63%
7 PM 31° Mostly Clear 13% 3 mph NNW 68%
8 PM 27° Mostly Clear 13% 3 mph NNW 70%
9 PM 26° Partly Cloudy 13% 3 mph NNE 73%
10 PM 26° Partly Cloudy 13% 2 mph NNE 75%
11 PM 25° Mostly Cloudy 8% 2 mph NNE 77%
12 AM 24° Mostly Cloudy 8% 3 mph N 79%
1 AM 23° Partly Cloudy 8% 4 mph NNE 82%
2 AM 23° Mostly Clear 14% 5 mph NNE 86%
3 AM 22° Clear 15% 6 mph NNE 89%
4 AM 22° Clear 15% 6 mph NE 89%
5 AM 21° Clear 11% 7 mph NE 89%
6 AM 21° Mostly Clear 9% 7 mph NE 88%
7 AM 22° Mostly Clear 9% 8 mph NE 82%
8 AM 23° Clear 9% 8 mph NE 76%
9 AM 23° Clear 9% 8 mph ENE 70%
10 AM 26° Clear 9% 8 mph ENE 67%
11 AM 27° Mostly Clear 3% 8 mph ENE 65%
12 PM 30° Mostly Clear 3% 8 mph ENE 62%
1 PM 31° Mostly Clear 3% 8 mph ENE 62%
2 PM 31° Mostly Clear 3% 8 mph ENE 61%
15-Day Forecast
Today
9/13
Mostly Clear
13%
20°
35°
Mon
9/14
Clear
15%
21°
34°
Tue
9/15
Clear
3%
21°
39°
Wed
9/16
Partly Cloudy
3%
23°
37°
Thu
9/17
Clear
19%
23°
38°
Fri
9/18
Clear
35%
22°
37°
Sat
9/19
Clear
19%
21°
37°
Sun
9/20
Clear
60%
19°
34°
Mon
9/21
Drizzle
60%
19°
34°
Tue
9/22
Drizzle
60%
15°
30°
Wed
9/23
Drizzle
60%
11°
29°
Thu
9/24
Drizzle
60%
16°
29°
Fri
9/25
Drizzle
60%
16°
29°
Sat
9/26
Clear
60%
16°
29°
Sun
9/27
Drizzle
60%
15°
30°
45
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
45 AQI 8.1 µg/m³
O3
Ground-level ozone
40 AQI 44 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Mon 45 Good 40 45
Tue 44 Good 39 44
Wed 52 Moderate 39 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
SBCAPE1801 J/kg
MLCAPE972 J/kg
MUCAPE1801 J/kg
SBCIN0 J/kg
MLCIN-3 J/kg
Lifted Index-4.2
Kinematics
0–6 km Shear12 kt
0–1 km Shear1 kt
Eff. Shear9 kt
0–1 km SRH1
0–3 km SRH8
Eff. SRH8
Storm Motion339° @ 20 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index36.1
Thermo & Levels
PWAT1.81 in
0–3 km LR8.5 °C/km
700–500 LR5.3 °C/km
Total Totals47.2
LCL811 hPa
LFC997 hPa
EL162 hPa
Freezing Lvl15,568 ft