Heat Advisory — Orange, IN, Washington, IN, Scott, IN, Dubois, IN, Crawford, IN, Perry, IN, Harrison, IN, Floyd, IN, Clark, IN, Hancock, KY, Breckinridge, KY, Meade, KY, Ohio, KY, Grayson, KY, Hardin, KY, Bullitt, KY, Jefferson, KY, Spencer, KY, Nelson, KY, Larue, KY, Butler, KY, Edmonson, KY, Hart, KY, Green, KY, Logan, KY, Warren, KY, Simpson, KY, Allen, KY, Barren, KY, Monroe, KY, Metcalfe, KY 7:00 PM

Jefferson County, Kentucky, United States

Last updated: 3:52 PM CDT  ·  Refresh
32°C
Feels like 35°
Mostly Clear
▲ 32°  /  ▼ 16°
Wind
10 mph W
Humidity
50%
Dew Point
20°
Pressure
29.41 inHg
Visibility
10 mi
UV Index
6.7
Cloud Cover
21%
Sunrise
7:22 AM
Sunset
7:53 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Jefferson County is currently mostly clear at 32°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1168 J/kg) — isolated convective development possible. Sunrise: 7:22AM · Sunset: 7:53PM.

Alerts

Heat Advisory
Orange, IN, Washington, IN, Scott, IN, Dubois, IN, Crawford, IN, Perry, IN, Harrison, IN, Floyd, IN, Clark, IN, Hancock, KY, Breckinridge, KY, Meade, KY, Ohio, KY, Grayson, KY, Hardin, KY, Bullitt, KY, Jefferson, KY, Spencer, KY, Nelson, KY, Larue, KY, Butler, KY, Edmonson, KY, Hart, KY, Green, KY, Logan, KY, Warren, KY, Simpson, KY, Allen, KY, Barren, KY, Monroe, KY, Metcalfe, KY
Expires 7:00 PM
43 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
32°
7%
5 PM
32°
8%
6 PM
31°
8%
7 PM
29°
5%
8 PM
28°
5%
9 PM
25°
5%
10 PM
24°
5%
11 PM
23°
3%
12 AM
22°
3%
1 AM
21°
3%
2 AM
21°
3%
3 AM
19°
3%
4 AM
19°
3%
5 AM
18°
3%
6 AM
17°
3%
7 AM
16°
3%
8 AM
17°
3%
9 AM
18°
3%
10 AM
18°
3%
11 AM
21°
3%
12 PM
21°
3%
1 PM
24°
3%
2 PM
24°
3%
3 PM
24°
3%
7-Day Forecast
Today
32° 16°
Mostly Clear.
Mon
29° 16°
Mostly Clear.
Tue
37° 17°
Mostly Clear.
Wed
36° 24°
Clear.
Thu
36° 23°
Clear.
Fri
34° 20°
Clear.
Sat
34° 21°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 32° Mostly Clear 7% 10 mph W 50%
5 PM 32° Partly Cloudy 8% 8 mph WNW 56%
6 PM 31° Mostly Clear 8% 7 mph NW 63%
7 PM 29° Mostly Clear 5% 7 mph NNW 70%
8 PM 28° Mostly Clear 5% 7 mph NNW 72%
9 PM 25° Mostly Clear 5% 7 mph N 73%
10 PM 24° Mostly Clear 5% 8 mph N 73%
11 PM 23° Mostly Clear 3% 8 mph NNE 73%
12 AM 22° Partly Cloudy 3% 8 mph NNE 72%
1 AM 21° Mostly Clear 3% 8 mph NNE 72%
2 AM 21° Mostly Clear 3% 8 mph NNE 70%
3 AM 19° Partly Cloudy 3% 8 mph NNE 68%
4 AM 19° Mostly Cloudy 3% 9 mph NNE 64%
5 AM 18° Partly Cloudy 3% 8 mph NNE 64%
6 AM 17° Partly Cloudy 3% 8 mph NNE 66%
7 AM 16° Mostly Clear 3% 7 mph NE 68%
8 AM 17° Mostly Clear 3% 8 mph NE 65%
9 AM 18° Mostly Clear 3% 8 mph NE 62%
10 AM 18° Partly Cloudy 3% 8 mph NE 59%
11 AM 21° Partly Cloudy 3% 8 mph NE 57%
12 PM 21° Mostly Clear 3% 8 mph NE 54%
1 PM 24° Mostly Clear 3% 7 mph ENE 52%
2 PM 24° Mostly Clear 3% 7 mph ENE 51%
3 PM 24° Mostly Clear 3% 7 mph ENE 50%
15-Day Forecast
Today
9/13
Mostly Clear
7%
16°
32°
Mon
9/14
Mostly Clear
3%
16°
29°
Tue
9/15
Mostly Clear
16%
17°
37°
Wed
9/16
Clear
17%
24°
36°
Thu
9/17
Clear
19%
23°
36°
Fri
9/18
Clear
19%
20°
34°
Sat
9/19
Clear
19%
21°
34°
Sun
9/20
Clear
60%
19°
30°
Mon
9/21
Drizzle
60%
18°
30°
Tue
9/22
Drizzle
60%
14°
27°
Wed
9/23
Drizzle
60%
13°
26°
Thu
9/24
Drizzle
60%
16°
27°
Fri
9/25
Drizzle
60%
14°
27°
Sat
9/26
Drizzle
60%
14°
27°
Sun
9/27
Clear
60%
14°
27°
43
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
39 AQI 7.1 µg/m³
O3
Ground-level ozone
Dominant
43 AQI 46 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Mon 43 Good 43 39
Tue 38 Good 38 30
Wed 52 Moderate 37 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 50 60 70 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE1652 J/kg
MLCAPE1072 J/kg
MUCAPE1652 J/kg
SBCIN0 J/kg
MLCIN-5 J/kg
Lifted Index-3.6
Kinematics
0–6 km Shear25 kt
0–1 km Shear8 kt
Eff. Shear25 kt
0–1 km SRH28
0–3 km SRH35
Eff. SRH35
Storm Motion314° @ 25 kt
0–1 km EHI0.3
Composite Parameters
Sig. Tornado0.1
STP (eff)0.0
Supercell0.7
K-Index24.7
Thermo & Levels
PWAT1.59 in
0–3 km LR7.7 °C/km
700–500 LR5.6 °C/km
Total Totals45.8
LCL831 hPa
LFC996 hPa
EL178 hPa
Freezing Lvl13,950 ft