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: 7:18 PM CDT  ·  Refresh
32°C
Feels like 40°
Mostly Clear
▲ 34°  /  ▼ 24°
Wind
4 mph SSW
Humidity
66%
Dew Point
24°
Pressure
29.47 inHg
Visibility
10 mi
UV Index
0.7
Cloud Cover
16%
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 32°C. Precipitation is likely — peak probability 58% around 8 PM. Atmospheric instability is elevated (CAPE up to 2886 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
32°
31%
9 PM
31°
46%
10 PM
30°
38%
11 PM
29°
28%
12 AM
28°
25%
1 AM
27°
20%
2 AM
27°
7%
3 AM
27°
7%
4 AM
26°
7%
5 AM
26°
4%
6 AM
24°
4%
7 AM
24°
4%
8 AM
25°
5%
9 AM
27°
10%
10 AM
29°
10%
11 AM
30°
12%
12 PM
31°
12%
1 PM
32°
19%
2 PM
33°
24%
3 PM
34°
25%
4 PM
35°
25%
5 PM
35°
41%
6 PM
33°
41%
7 PM
32°
50%
7-Day Forecast
Tonight
34° 24°
Mostly Clear with a 31% chance of rain.
Sun
35° 24°
Partly Cloudy with a 57% chance of rain.
Mon
32° 22°
Rain, 60% chance.
Tue
29° 19°
Clear with a 60% chance of rain.
Wed
30° 18°
Rain, 64% chance.
Thu
29° 20°
Rain, 67% chance.
Fri
29° 19°
Mostly Cloudy with a 35% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 32° Mostly Clear 31% 4 mph SSW 66%
9 PM 31° Mostly Clear 46% 4 mph SSW 70%
10 PM 30° Clear 38% 4 mph SSW 73%
11 PM 29° Clear 28% 4 mph SSW 75%
12 AM 28° Clear 25% 4 mph SSW 77%
1 AM 27° Clear 20% 4 mph S 79%
2 AM 27° Clear 7% 4 mph S 79%
3 AM 27° Clear 7% 4 mph SSW 78%
4 AM 26° Clear 7% 4 mph SSW 76%
5 AM 26° Clear 4% 4 mph SSW 74%
6 AM 24° Clear 4% 5 mph SSW 74%
7 AM 24° Clear 4% 5 mph SSW 74%
8 AM 25° Mostly Clear 5% 6 mph SW 71%
9 AM 27° Mostly Clear 10% 7 mph WSW 66%
10 AM 29° Partly Cloudy 10% 8 mph WSW 61%
11 AM 30° Partly Cloudy 12% 9 mph W 59%
12 PM 31° Partly Cloudy 12% 8 mph W 57%
1 PM 32° Partly Cloudy 19% 7 mph WSW 54%
2 PM 33° Partly Cloudy 24% 7 mph WSW 51%
3 PM 34° Partly Cloudy 25% 7 mph WSW 50%
4 PM 35° Partly Cloudy 25% 8 mph WSW 50%
5 PM 35° Mostly Cloudy 41% 9 mph WSW 50%
6 PM 33° Partly Cloudy 41% 8 mph WSW 54%
7 PM 32° Partly Cloudy 50% 7 mph W 58%
15-Day Forecast
Today
8/15
Mostly Clear
31%
24°
34°
Sun
8/16
Partly Cloudy
57%
24°
35°
Mon
8/17
Rain
60%
22°
32°
Tue
8/18
Clear
60%
19°
29°
Wed
8/19
Rain
64%
18°
30°
Thu
8/20
Rain
67%
20°
29°
Fri
8/21
Mostly Cloudy
35%
19°
29°
Sat
8/22
Mostly Clear
31%
18°
29°
Sun
8/23
Mostly Clear
34%
17°
29°
Mon
8/24
Clear
19%
18°
31°
Tue
8/25
Drizzle
60%
19°
32°
Wed
8/26
Drizzle
60%
18°
31°
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
Today 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, 23:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE3472 J/kg
MLCAPE2862 J/kg
MUCAPE3472 J/kg
SBCIN-50 J/kg
MLCIN-28 J/kg
Lifted Index-7.3
Kinematics
0–6 km Shear21 kt
0–1 km Shear6 kt
Eff. Shear22 kt
0–1 km SRH33
0–3 km SRH99
Eff. SRH99
Storm Motion330° @ 22 kt
0–1 km EHI0.7
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell3.9
K-Index40.0
Thermo & Levels
PWAT2.24 in
0–3 km LR7.0 °C/km
700–500 LR5.9 °C/km
Total Totals50.0
LCL890 hPa
LFC847 hPa
EL131 hPa
Freezing Lvl15,502 ft