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

Macon County, Middle Tennessee, Tennessee, United States

Last updated: 3:51 PM CDT  ·  Refresh
33°C
Feels like 34°
Mostly Clear
▲ 34°  /  ▼ 20°
Wind
5 mph WNW
Humidity
47%
Dew Point
19°
Pressure
29.05 inHg
Visibility
10 mi
UV Index
6.8
Cloud Cover
14%
Sunrise
6:24 AM
Sunset
6:54 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Macon County is currently mostly clear at 33°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 692 J/kg) — isolated convective development possible. Sunrise: 6:24AM · Sunset: 6:54PM.

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
33°
3%
4 PM
34°
3%
5 PM
33°
3%
6 PM
31°
3%
7 PM
30°
3%
8 PM
27°
5%
9 PM
27°
5%
10 PM
26°
5%
11 PM
26°
5%
12 AM
24°
5%
1 AM
24°
5%
2 AM
23°
5%
3 AM
23°
5%
4 AM
22°
5%
5 AM
21°
3%
6 AM
21°
3%
7 AM
22°
3%
8 AM
22°
3%
9 AM
23°
3%
10 AM
25°
3%
11 AM
26°
3%
12 PM
29°
3%
1 PM
29°
3%
2 PM
29°
3%
7-Day Forecast
Today
34° 20°
Clear.
Mon
32° 21°
Mostly Clear.
Tue
37° 21°
Mostly Clear.
Wed
35° 23°
Mostly Clear.
Thu
36° 22°
Clear.
Fri
35° 21°
Clear.
Sat
35° 21°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 33° Mostly Clear 3% 5 mph WNW 47%
4 PM 34° Clear 3% 7 mph NW 50%
5 PM 33° Clear 3% 5 mph NW 55%
6 PM 31° Clear 3% 3 mph NNW 61%
7 PM 30° Clear 3% 2 mph N 64%
8 PM 27° Mostly Clear 5% 3 mph N 66%
9 PM 27° Partly Cloudy 5% 4 mph NNE 68%
10 PM 26° Partly Cloudy 5% 4 mph NNE 72%
11 PM 26° Partly Cloudy 5% 4 mph NNE 76%
12 AM 24° Mostly Cloudy 5% 4 mph NNE 80%
1 AM 24° Partly Cloudy 5% 5 mph NNE 82%
2 AM 23° Partly Cloudy 5% 6 mph NNE 84%
3 AM 23° Mostly Clear 5% 7 mph NE 87%
4 AM 22° Mostly Clear 5% 8 mph NE 88%
5 AM 21° Partly Cloudy 3% 8 mph NE 89%
6 AM 21° Partly Cloudy 3% 9 mph NE 90%
7 AM 22° Partly Cloudy 3% 9 mph NE 86%
8 AM 22° Partly Cloudy 3% 9 mph NE 79%
9 AM 23° Partly Cloudy 3% 9 mph NE 75%
10 AM 25° Partly Cloudy 3% 9 mph NE 71%
11 AM 26° Partly Cloudy 3% 9 mph NE 68%
12 PM 29° Partly Cloudy 3% 9 mph NE 64%
1 PM 29° Mostly Clear 3% 9 mph NE 63%
2 PM 29° Mostly Clear 3% 9 mph NE 62%
15-Day Forecast
Today
9/13
Clear
5%
20°
34°
Mon
9/14
Mostly Clear
5%
21°
32°
Tue
9/15
Mostly Clear
3%
21°
37°
Wed
9/16
Mostly Clear
3%
23°
35°
Thu
9/17
Clear
19%
22°
36°
Fri
9/18
Clear
19%
21°
35°
Sat
9/19
Clear
19%
21°
35°
Sun
9/20
Clear
60%
19°
33°
Mon
9/21
Drizzle
60%
19°
32°
Tue
9/22
Drizzle
60%
16°
28°
Wed
9/23
Drizzle
60%
12°
28°
Thu
9/24
Drizzle
60%
16°
28°
Fri
9/25
Drizzle
60%
15°
28°
Sat
9/26
Drizzle
60%
15°
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
35 AQI 6.3 µg/m³
O3
Ground-level ozone
Dominant
44 AQI 48 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Mon 44 Good 44 35
Tue 38 Good 35 38
Wed 49 Good 45 49
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
SBCAPE1139 J/kg
MLCAPE519 J/kg
MUCAPE1139 J/kg
SBCIN-0 J/kg
MLCIN-17 J/kg
Lifted Index-2.8
Kinematics
0–6 km Shear17 kt
0–1 km Shear2 kt
Eff. Shear17 kt
0–1 km SRH9
0–3 km SRH2
Eff. SRH2
Storm Motion350° @ 21 kt
0–1 km EHI0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index22.8
Thermo & Levels
PWAT1.40 in
0–3 km LR7.8 °C/km
700–500 LR5.7 °C/km
Total Totals44.3
LCL809 hPa
LFC984 hPa
EL184 hPa
Freezing Lvl15,230 ft