Heat Advisory — Stewart, TN, Montgomery, TN, Houston, TN, Humphreys, TN, Dickson, TN, Perry, TN, Hickman, TN, Lewis, TN, Wayne, TN, Lawrence, TN, Robertson, TN, Sumner, TN, Macon, TN, Cheatham, TN, Davidson, TN, Wilson, TN, Trousdale, TN, Smith, TN, Williamson, TN, Maury, TN, Marshall, TN, Rutherford, TN, Bedford, TN, Giles, TN 8:00 PM

Cheatham County, Middle Tennessee, Tennessee, United States

Last updated: 1:54 AM CDT  ·  Refresh
24°C
Feels like 28°
Rain
▲ 34°  /  ▼ 25°
Wind
4 mph NW
Humidity
94%
Dew Point
23°
Pressure
29.27 inHg
Visibility
9 mi
UV Index
0.0
Cloud Cover
76%
Sunrise
5:51 AM
Sunset
7:57 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Cheatham County is currently rain at 24°C. Precipitation is likely — peak probability 90% around 1 AM. Atmospheric instability is elevated (CAPE up to 3664 J/kg) — isolated convective development possible. Sunrise: 5:51AM · Sunset: 7:57PM.

Alerts

Heat Advisory
Stewart, TN, Montgomery, TN, Houston, TN, Humphreys, TN, Dickson, TN, Perry, TN, Hickman, TN, Lewis, TN, Wayne, TN, Lawrence, TN, Robertson, TN, Sumner, TN, Macon, TN, Cheatham, TN, Davidson, TN, Wilson, TN, Trousdale, TN, Smith, TN, Williamson, TN, Maury, TN, Marshall, TN, Rutherford, TN, Bedford, TN, Giles, TN
Expires 8:00 PM
43 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
24°
90%
2 AM
24°
83%
3 AM
24°
82%
4 AM
23°
70%
5 AM
22°
37%
6 AM
23°
29%
7 AM
24°
22%
8 AM
26°
23%
9 AM
27°
25%
10 AM
28°
26%
11 AM
30°
33%
12 PM
33°
42%
1 PM
33°
30%
2 PM
33°
33%
3 PM
33°
36%
4 PM
33°
27%
5 PM
33°
23%
6 PM
32°
24%
7 PM
32°
24%
8 PM
29°
25%
9 PM
28°
15%
10 PM
28°
11%
11 PM
28°
12%
12 AM
28°
5%
7-Day Forecast
Today
34° 25°
Mostly Clear with a 90% chance of rain.
Tue
37° 23°
Mostly Clear with a 36% chance of rain.
Wed
32° 19°
Partly Cloudy with a 23% chance of rain.
Thu
28° 18°
Clear with a 48% chance of rain.
Fri
29° 19°
Rain, 64% chance.
Sat
27° 19°
Heavy Rain, 82% chance.
Sun
27° 20°
Rain, 63% chance.
TimeTempConditionsPrecipWindHumidity
Now 24° Rain 90% 4 mph NW 94%
2 AM 24° Rain 83% 3 mph NW 94%
3 AM 24° Rain 82% 6 mph WNW 92%
4 AM 23° Overcast 70% 4 mph WSW 92%
5 AM 22° Partly Cloudy 37% 4 mph WSW 94%
6 AM 23° Mostly Cloudy 29% 4 mph SSE 95%
7 AM 24° Partly Cloudy 22% 4 mph SSW 91%
8 AM 26° Mostly Clear 23% 4 mph SW 85%
9 AM 27° Mostly Clear 25% 5 mph SW 80%
10 AM 28° Mostly Clear 26% 4 mph WSW 76%
11 AM 30° Mostly Clear 33% 5 mph WSW 72%
12 PM 33° Mostly Clear 42% 6 mph W 68%
1 PM 33° Mostly Clear 30% 6 mph W 67%
2 PM 33° Mostly Clear 33% 6 mph W 66%
3 PM 33° Clear 36% 6 mph W 66%
4 PM 33° Clear 27% 5 mph W 69%
5 PM 33° Clear 23% 4 mph W 73%
6 PM 32° Clear 24% 4 mph WSW 79%
7 PM 32° Mostly Clear 24% 4 mph SW 82%
8 PM 29° Partly Cloudy 25% 4 mph SW 84%
9 PM 28° Partly Cloudy 15% 5 mph SSW 86%
10 PM 28° Partly Cloudy 11% 5 mph SSW 87%
11 PM 28° Partly Cloudy 12% 5 mph SSW 88%
12 AM 28° Partly Cloudy 5% 5 mph SSW 89%
15-Day Forecast
Today
7/27
Mostly Clear
90%
25°
34°
Tue
7/28
Mostly Clear
36%
23°
37°
Wed
7/29
Partly Cloudy
23%
19°
32°
Thu
7/30
Clear
48%
18°
28°
Fri
7/31
Rain
64%
19°
29°
Sat
8/1
Heavy Rain
82%
19°
27°
Sun
8/2
Rain
63%
20°
27°
Mon
8/3
Rain
69%
20°
31°
Tue
8/4
Rain
68%
20°
33°
Wed
8/5
Drizzle
51%
22°
33°
Thu
8/6
Drizzle
60%
21°
32°
Fri
8/7
Drizzle
60%
21°
32°
Sat
8/8
Drizzle
60%
21°
32°
Sun
8/9
Drizzle
60%
21°
32°
Mon
8/10
Drizzle
60%
22°
32°
43
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
43 AQI 7.9 µg/m³
O3
Ground-level ozone
36 AQI 40 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 43 Good 36 43
Tue 53 Moderate 36 53
Wed 48 Good 35 48
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 Mon Jul 27, 05:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE644 J/kg
MLCAPE429 J/kg
MUCAPE1680 J/kg
SBCIN-141 J/kg
MLCIN0 J/kg
Lifted Index-2.9
Kinematics
0–6 km Shear27 kt
0–1 km Shear13 kt
Eff. Shear26 kt
0–1 km SRH-50
0–3 km SRH-66
Eff. SRH-66
Storm Motion292° @ 23 kt
0–1 km EHI-0.2
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index43.6
Thermo & Levels
PWAT2.49 in
0–3 km LR4.9 °C/km
700–500 LR5.6 °C/km
Total Totals50.3
LCL972 hPa
LFC737 hPa
EL211 hPa
Freezing Lvl14,452 ft