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

Simpson County, Kentucky, United States

Last updated: 3:48 PM CDT  ·  Refresh
90°F
Feels like 95°
Mostly Clear
▲ 93°  /  ▼ 67°
Wind
5 mph W
Humidity
49%
Dew Point
68°
Pressure
29.27 inHg
Visibility
10 mi
UV Index
6.9
Cloud Cover
19%
Sunrise
6:27 AM
Sunset
6:56 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Simpson County is currently mostly clear at 90°F. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1577 J/kg) — isolated convective development possible. Sunrise: 6:27AM · Sunset: 6:56PM.

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
39 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
90°
4%
4 PM
93°
10%
5 PM
91°
10%
6 PM
87°
10%
7 PM
85°
10%
8 PM
79°
13%
9 PM
78°
13%
10 PM
76°
8%
11 PM
75°
8%
12 AM
74°
8%
1 AM
73°
8%
2 AM
72°
9%
3 AM
71°
5%
4 AM
70°
5%
5 AM
69°
10%
6 AM
68°
6%
7 AM
69°
7%
8 AM
71°
7%
9 AM
72°
7%
10 AM
76°
7%
11 AM
77°
7%
12 PM
82°
7%
1 PM
82°
7%
2 PM
83°
7%
7-Day Forecast
Today
93° 67°
Mostly Clear.
Mon
89° 68°
Mostly Clear.
Tue
100° 68°
Mostly Clear.
Wed
96° 73°
Clear.
Thu
97° 72°
Clear.
Fri
95° 71°
Clear.
Sat
96° 70°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 90° Mostly Clear 4% 5 mph W 49%
4 PM 93° Mostly Clear 10% 4 mph WNW 52%
5 PM 91° Partly Cloudy 10% 3 mph WNW 57%
6 PM 87° Mostly Clear 10% 3 mph NNW 63%
7 PM 85° Clear 10% 3 mph NNW 66%
8 PM 79° Clear 13% 4 mph N 70%
9 PM 78° Mostly Clear 13% 5 mph NNE 73%
10 PM 76° Mostly Clear 8% 5 mph NNE 77%
11 PM 75° Partly Cloudy 8% 6 mph NNE 80%
12 AM 74° Mostly Clear 8% 6 mph NNE 84%
1 AM 73° Mostly Clear 8% 6 mph NNE 86%
2 AM 72° Mostly Clear 9% 7 mph NE 88%
3 AM 71° Clear 5% 8 mph NE 90%
4 AM 70° Mostly Clear 5% 8 mph NE 89%
5 AM 69° Mostly Clear 10% 8 mph NE 88%
6 AM 68° Partly Cloudy 6% 9 mph NE 86%
7 AM 69° Mostly Clear 7% 10 mph NE 81%
8 AM 71° Mostly Clear 7% 10 mph NE 75%
9 AM 72° Clear 7% 10 mph NE 71%
10 AM 76° Mostly Clear 7% 10 mph NE 68%
11 AM 77° Mostly Clear 7% 10 mph NE 67%
12 PM 82° Partly Cloudy 7% 10 mph NE 65%
1 PM 82° Partly Cloudy 7% 10 mph NE 64%
2 PM 83° Mostly Clear 7% 10 mph NE 63%
15-Day Forecast
Today
9/13
Mostly Clear
13%
67°
93°
Mon
9/14
Mostly Clear
8%
68°
89°
Tue
9/15
Mostly Clear
3%
68°
100°
Wed
9/16
Clear
3%
73°
96°
Thu
9/17
Clear
19%
72°
97°
Fri
9/18
Clear
19%
71°
95°
Sat
9/19
Clear
19%
70°
96°
Sun
9/20
Clear
60%
67°
90°
Mon
9/21
Drizzle
60%
66°
90°
Tue
9/22
Drizzle
60%
60°
83°
Wed
9/23
Drizzle
60%
53°
82°
Thu
9/24
Drizzle
60%
61°
82°
Fri
9/25
Drizzle
60%
60°
82°
Sat
9/26
Drizzle
60%
59°
82°
Sun
9/27
Drizzle
60%
58°
84°
39
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
38 AQI 6.9 µg/m³
O3
Ground-level ozone
Dominant
39 AQI 43 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Mon 39 Good 39 38
Tue 38 Good 34 38
Wed 52 Moderate 46 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 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE1548 J/kg
MLCAPE694 J/kg
MUCAPE1548 J/kg
SBCIN-0 J/kg
MLCIN-19 J/kg
Lifted Index-4.1
Kinematics
0–6 km Shear17 kt
0–1 km Shear4 kt
Eff. Shear16 kt
0–1 km SRH14
0–3 km SRH6
Eff. SRH6
Storm Motion344° @ 20 kt
0–1 km EHI0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index26.6
Thermo & Levels
PWAT1.54 in
0–3 km LR7.7 °C/km
700–500 LR5.7 °C/km
Total Totals45.6
LCL829 hPa
LFC823 hPa
EL169 hPa
Freezing Lvl15,243 ft