Heat Advisory — Stewart, TN, Montgomery, TN, Robertson, TN, Sumner, TN, Houston, TN, Humphreys, TN, Dickson, TN, Cheatham, TN, Davidson, TN, Wilson, TN, Trousdale, TN, Smith, TN, Perry, TN, Hickman, TN, Lewis, TN, Williamson, TN, Maury, TN, Rutherford, TN 9:00 PM

Perry County, Middle Tennessee, Tennessee, United States

Last updated: 5:18 AM CDT  ·  Refresh
23°C
Feels like 26°
Clear
▲ 34°  /  ▼ 23°
Wind
4 mph SSW
Humidity
89%
Dew Point
22°
Pressure
29.39 inHg
Visibility
8 mi
UV Index
0.0
Cloud Cover
5%
Sunrise
6:07 AM
Sunset
7:45 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Perry County is currently clear at 23°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2736 J/kg) — isolated convective development possible. Sunrise: 6:07AM · Sunset: 7:45PM.

Alerts

Heat Advisory
Stewart, TN, Montgomery, TN, Robertson, TN, Sumner, TN, Houston, TN, Humphreys, TN, Dickson, TN, Cheatham, TN, Davidson, TN, Wilson, TN, Trousdale, TN, Smith, TN, Perry, TN, Hickman, TN, Lewis, TN, Williamson, TN, Maury, TN, Rutherford, TN
Expires 9:00 PM
31 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
23°
11%
6 AM
22°
21%
7 AM
23°
21%
8 AM
24°
21%
9 AM
27°
21%
10 AM
29°
20%
11 AM
31°
18%
12 PM
32°
18%
1 PM
33°
16%
2 PM
33°
19%
3 PM
34°
27%
4 PM
33°
29%
5 PM
32°
11%
6 PM
31°
11%
7 PM
30°
6%
8 PM
29°
6%
9 PM
27°
6%
10 PM
27°
6%
11 PM
27°
7%
12 AM
26°
5%
1 AM
26°
5%
2 AM
26°
5%
3 AM
26°
9%
4 AM
26°
9%
7-Day Forecast
Today
34° 23°
Mostly Clear with a 21% chance of rain.
Wed
36° 23°
Partly Cloudy with a 26% chance of rain.
Thu
37° 24°
Mostly Cloudy.
Fri
36° 24°
Clear.
Sat
38° 24°
Clear.
Sun
38° 24°
Clear with a 34% chance of rain.
Mon
37° 23°
Thunderstorm, 53% chance.
TimeTempConditionsPrecipWindHumidity
Now 23° Clear 11% 4 mph SSW 89%
6 AM 22° Clear 21% 5 mph SSW 88%
7 AM 23° Clear 21% 5 mph SW 87%
8 AM 24° Clear 21% 7 mph SW 81%
9 AM 27° Clear 21% 7 mph SW 75%
10 AM 29° Clear 20% 7 mph WSW 69%
11 AM 31° Clear 18% 7 mph WSW 64%
12 PM 32° Clear 18% 7 mph SW 60%
1 PM 33° Mostly Clear 16% 8 mph SW 56%
2 PM 33° Mostly Clear 19% 8 mph SW 56%
3 PM 34° Mostly Clear 27% 8 mph SW 56%
4 PM 33° Mostly Clear 29% 8 mph SW 56%
5 PM 32° Mostly Clear 11% 7 mph SW 60%
6 PM 31° Mostly Clear 11% 6 mph SW 65%
7 PM 30° Mostly Clear 6% 6 mph SSW 70%
8 PM 29° Mostly Clear 6% 5 mph SSW 72%
9 PM 27° Mostly Clear 6% 5 mph SSW 74%
10 PM 27° Clear 6% 5 mph SSW 76%
11 PM 27° Mostly Clear 7% 6 mph SSW 76%
12 AM 26° Mostly Clear 5% 6 mph SSW 77%
1 AM 26° Mostly Clear 5% 6 mph SSW 77%
2 AM 26° Mostly Clear 5% 6 mph SSW 78%
3 AM 26° Mostly Clear 9% 6 mph SSW 78%
4 AM 26° Mostly Clear 9% 6 mph SSW 80%
15-Day Forecast
Today
8/11
Mostly Clear
21%
23°
34°
Wed
8/12
Partly Cloudy
26%
23°
36°
Thu
8/13
Mostly Cloudy
15%
24°
37°
Fri
8/14
Clear
13%
24°
36°
Sat
8/15
Clear
7%
24°
38°
Sun
8/16
Clear
34%
24°
38°
Mon
8/17
Thunderstorm
53%
23°
37°
Tue
8/18
Rain
53%
22°
36°
Wed
8/19
Clear
34%
22°
37°
Thu
8/20
Clear
54%
22°
35°
Fri
8/21
Clear
60%
22°
35°
Sat
8/22
Drizzle
60%
22°
35°
Sun
8/23
Drizzle
60%
22°
34°
Mon
8/24
Drizzle
60%
21°
34°
Tue
8/25
Drizzle
60%
21°
33°
31
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
26 AQI 4.6 µg/m³
O3
Ground-level ozone
Dominant
31 AQI 34 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 31 Good 31 26
Wed 30 Good 30 20
Thu 35 Good 35 26
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 Tue Aug 11, 09:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE800 J/kg
MLCAPE1126 J/kg
MUCAPE1585 J/kg
SBCIN-255 J/kg
MLCIN0 J/kg
Lifted Index-3.7
Kinematics
0–6 km Shear8 kt
0–1 km Shear12 kt
Eff. Shear12 kt
0–1 km SRH68
0–3 km SRH50
Eff. SRH1
Storm Motion339° @ 12 kt
0–1 km EHI0.3
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index32.9
Thermo & Levels
PWAT1.57 in
0–3 km LR4.5 °C/km
700–500 LR6.5 °C/km
Total Totals48.4
LCL976 hPa
LFC726 hPa
EL217 hPa
Freezing Lvl15,144 ft