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, Oldham, KY, Shelby, KY, Spencer, KY, Anderson, KY, Nelson, KY, Washington, KY, Larue, KY, Marion, KY, Butler, KY, Edmonson, KY, Hart, KY, Green, KY, Taylor, KY, Logan, KY, Warren, KY, Simpson, KY, Allen, KY, Barren, KY, Monroe, KY, Metcalfe, KY, Adair, KY, Russell, KY, Cumberland, KY, Clinton, KY 8:00 PM

Jefferson County, Kentucky, United States

Last updated: 6:06 PM CDT  ·  Refresh
34°C
Feels like 42°
Mostly Clear
▲ 34°  /  ▼ 24°
Wind
6 mph SW
Humidity
61%
Dew Point
24°
Pressure
29.48 inHg
Visibility
10 mi
UV Index
4.0
Cloud Cover
12%
Sunrise
6:57 AM
Sunset
8:35 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Jefferson County is currently mostly clear at 34°C. Precipitation is likely — peak probability 60% around 7 PM. Atmospheric instability is elevated (CAPE up to 2919 J/kg) — isolated convective development possible. Sunrise: 6:57AM · Sunset: 8:35PM.

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, Oldham, KY, Shelby, KY, Spencer, KY, Anderson, KY, Nelson, KY, Washington, KY, Larue, KY, Marion, KY, Butler, KY, Edmonson, KY, Hart, KY, Green, KY, Taylor, KY, Logan, KY, Warren, KY, Simpson, KY, Allen, KY, Barren, KY, Monroe, KY, Metcalfe, KY, Adair, KY, Russell, KY, Cumberland, KY, Clinton, KY
Expires 8:00 PM
53 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
34°
26%
8 PM
32°
42%
9 PM
31°
37%
10 PM
30°
41%
11 PM
29°
44%
12 AM
28°
40%
1 AM
27°
28%
2 AM
27°
8%
3 AM
27°
8%
4 AM
27°
8%
5 AM
26°
5%
6 AM
24°
5%
7 AM
24°
5%
8 AM
25°
5%
9 AM
27°
5%
10 AM
28°
13%
11 AM
29°
17%
12 PM
30°
21%
1 PM
31°
21%
2 PM
33°
31%
3 PM
33°
37%
4 PM
33°
37%
5 PM
33°
41%
6 PM
32°
49%
7-Day Forecast
Tonight
34° 24°
Mostly Clear with a 41% chance of rain.
Sun
34° 24°
Partly Cloudy with a 60% chance of rain.
Mon
32° 22°
Rain, 67% chance.
Tue
28° 18°
Clear with a 53% chance of rain.
Wed
31° 18°
Drizzle, 60% chance.
Thu
28° 19°
Drizzle, 64% chance.
Fri
28° 18°
Mostly Cloudy with a 28% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 34° Mostly Clear 26% 6 mph SW 61%
8 PM 32° Clear 42% 4 mph SSW 67%
9 PM 31° Clear 37% 4 mph S 70%
10 PM 30° Clear 41% 4 mph S 73%
11 PM 29° Clear 44% 3 mph SSW 76%
12 AM 28° Mostly Clear 40% 4 mph SSW 78%
1 AM 27° Clear 28% 4 mph S 80%
2 AM 27° Clear 8% 4 mph S 81%
3 AM 27° Clear 8% 4 mph SSW 80%
4 AM 27° Clear 8% 4 mph SSW 79%
5 AM 26° Clear 5% 4 mph SSW 78%
6 AM 24° Clear 5% 4 mph SSW 78%
7 AM 24° Mostly Clear 5% 5 mph SSW 77%
8 AM 25° Mostly Clear 5% 5 mph SSW 75%
9 AM 27° Partly Cloudy 5% 6 mph SW 69%
10 AM 28° Partly Cloudy 13% 7 mph WSW 64%
11 AM 29° Mostly Cloudy 17% 9 mph W 62%
12 PM 30° Partly Cloudy 21% 8 mph W 62%
1 PM 31° Partly Cloudy 21% 6 mph WSW 60%
2 PM 33° Partly Cloudy 31% 6 mph WSW 59%
3 PM 33° Partly Cloudy 37% 6 mph WSW 58%
4 PM 33° Mostly Cloudy 37% 7 mph WSW 58%
5 PM 33° Mostly Cloudy 41% 8 mph WSW 58%
6 PM 32° Partly Cloudy 49% 7 mph W 60%
15-Day Forecast
Today
8/15
Mostly Clear
41%
24°
34°
Sun
8/16
Partly Cloudy
60%
24°
34°
Mon
8/17
Rain
67%
22°
32°
Tue
8/18
Clear
53%
18°
28°
Wed
8/19
Drizzle
60%
18°
31°
Thu
8/20
Drizzle
64%
19°
28°
Fri
8/21
Mostly Cloudy
28%
18°
28°
Sat
8/22
Mostly Clear
24%
18°
29°
Sun
8/23
Mostly Clear
43%
16°
29°
Mon
8/24
Clear
19%
17°
31°
Tue
8/25
Drizzle
46%
16°
31°
Wed
8/26
Drizzle
60%
19°
29°
Thu
8/27
Drizzle
60%
18°
28°
Fri
8/28
Drizzle
60%
17°
28°
Sat
8/29
Drizzle
60%
17°
29°
53
Moderate
U.S. Air Quality Index · Dominant: PM2.5
50 100 150 200

Air quality is acceptable. Unusually sensitive people should consider limiting prolonged outdoor exertion.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
Dominant
53 AQI 10.1 µg/m³
O3
Ground-level ozone
44 AQI 48 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Sun 53 Moderate 44 53
Mon 50 Good 38 50
Tue 43 Good 43 39
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 Sat Aug 15, 21:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE3153 J/kg
MLCAPE2657 J/kg
MUCAPE3153 J/kg
SBCIN-20 J/kg
MLCIN-12 J/kg
Lifted Index-6.7
Kinematics
0–6 km Shear21 kt
0–1 km Shear3 kt
Eff. Shear19 kt
0–1 km SRH13
0–3 km SRH64
Eff. SRH64
Storm Motion322° @ 22 kt
0–1 km EHI0.3
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index40.0
Thermo & Levels
PWAT2.06 in
0–3 km LR7.6 °C/km
700–500 LR5.7 °C/km
Total Totals48.4
LCL863 hPa
LFC844 hPa
EL134 hPa
Freezing Lvl15,830 ft