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

Cheatham County, Middle Tennessee, Tennessee, United States

Last updated: 3:51 PM CDT  ·  Refresh
93°F
Feels like 99°
Clear
▲ 96°  /  ▼ 68°
Wind
6 mph WNW
Humidity
46%
Dew Point
67°
Pressure
29.33 inHg
Visibility
10 mi
UV Index
6.9
Cloud Cover
6%
Sunrise
6:29 AM
Sunset
6:58 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Cheatham County is currently clear at 93°F. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1246 J/kg) — isolated convective development possible. Sunrise: 6:29AM · Sunset: 6:58PM.

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
41 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
93°
3%
4 PM
96°
5%
5 PM
93°
5%
6 PM
89°
5%
7 PM
87°
5%
8 PM
81°
5%
9 PM
80°
5%
10 PM
78°
5%
11 PM
78°
5%
12 AM
76°
5%
1 AM
75°
5%
2 AM
74°
5%
3 AM
73°
5%
4 AM
72°
5%
5 AM
71°
3%
6 AM
71°
3%
7 AM
72°
3%
8 AM
74°
3%
9 AM
75°
3%
10 AM
79°
3%
11 AM
81°
3%
12 PM
87°
3%
1 PM
88°
3%
2 PM
88°
3%
7-Day Forecast
Today
96° 68°
Mostly Clear.
Mon
94° 71°
Clear.
Tue
101° 74°
Clear.
Wed
98° 75°
Mostly Clear.
Thu
100° 73°
Clear.
Fri
99° 72°
Clear with a 35% chance of rain.
Sat
98° 71°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 93° Clear 3% 6 mph WNW 46%
4 PM 96° Clear 5% 5 mph NW 51%
5 PM 93° Clear 5% 4 mph NW 57%
6 PM 89° Partly Cloudy 5% 3 mph NNW 65%
7 PM 87° Partly Cloudy 5% 3 mph NNW 69%
8 PM 81° Mostly Clear 5% 3 mph NNW 72%
9 PM 80° Partly Cloudy 5% 3 mph NNW 74%
10 PM 78° Partly Cloudy 5% 3 mph NNW 76%
11 PM 78° Partly Cloudy 5% 2 mph NNW 77%
12 AM 76° Mostly Cloudy 5% 2 mph NNW 78%
1 AM 75° Mostly Cloudy 5% 2 mph N 80%
2 AM 74° Mostly Cloudy 5% 3 mph NNE 82%
3 AM 73° Mostly Clear 5% 4 mph NNE 84%
4 AM 72° Mostly Clear 5% 4 mph NNE 86%
5 AM 71° Clear 3% 4 mph NE 88%
6 AM 71° Clear 3% 5 mph NE 89%
7 AM 72° Clear 3% 6 mph NE 85%
8 AM 74° Mostly Clear 3% 6 mph NE 79%
9 AM 75° Mostly Clear 3% 6 mph NE 74%
10 AM 79° Mostly Clear 3% 6 mph NE 71%
11 AM 81° Clear 3% 6 mph NE 67%
12 PM 87° Clear 3% 6 mph NE 64%
1 PM 88° Clear 3% 6 mph NE 62%
2 PM 88° Clear 3% 6 mph NE 62%
15-Day Forecast
Today
9/13
Mostly Clear
5%
68°
96°
Mon
9/14
Clear
5%
71°
94°
Tue
9/15
Clear
3%
74°
101°
Wed
9/16
Mostly Clear
3%
75°
98°
Thu
9/17
Clear
19%
73°
100°
Fri
9/18
Clear
35%
72°
99°
Sat
9/19
Clear
19%
71°
98°
Sun
9/20
Clear
60%
68°
93°
Mon
9/21
Drizzle
60%
66°
93°
Tue
9/22
Drizzle
60%
58°
86°
Wed
9/23
Drizzle
60%
51°
84°
Thu
9/24
Drizzle
60%
62°
84°
Fri
9/25
Drizzle
60%
61°
84°
Sat
9/26
Drizzle
60%
60°
84°
Sun
9/27
Drizzle
60%
59°
86°
41
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
33 AQI 6.0 µg/m³
O3
Ground-level ozone
Dominant
41 AQI 44 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Mon 41 Good 41 33
Tue 44 Good 44 42
Wed 49 Good 44 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
SBCAPE1290 J/kg
MLCAPE453 J/kg
MUCAPE1290 J/kg
SBCIN-0 J/kg
MLCIN-12 J/kg
Lifted Index-3.3
Kinematics
0–6 km Shear12 kt
0–1 km Shear2 kt
Eff. Shear10 kt
0–1 km SRH2
0–3 km SRH11
Eff. SRH11
Storm Motion350° @ 20 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index29.4
Thermo & Levels
PWAT1.54 in
0–3 km LR8.4 °C/km
700–500 LR5.4 °C/km
Total Totals45.8
LCL802 hPa
LFC798 hPa
EL177 hPa
Freezing Lvl15,791 ft