Simpson County, Kentucky, United States

Last updated: 11:15 PM CDT  ·  Refresh
24°C
Feels like 29°
Partly Cloudy
▲ 33°  /  ▼ 21°
Wind
4 mph WNW
Humidity
94%
Dew Point
24°
Pressure
29.13 inHg
Visibility
9 mi
UV Index
0.0
Cloud Cover
48%
Sunrise
5:43 AM
Sunset
8:01 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Simpson County is currently partly cloudy at 24°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1323 J/kg) — isolated convective development possible. Sunrise: 5:43AM · Sunset: 8:01PM.

Alerts

No active alerts for this location.
52 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
24°
25%
12 AM
24°
31%
1 AM
24°
4%
2 AM
24°
5%
3 AM
23°
5%
4 AM
22°
8%
5 AM
22°
8%
6 AM
22°
4%
7 AM
22°
4%
8 AM
23°
5%
9 AM
25°
5%
10 AM
26°
5%
11 AM
27°
5%
12 PM
27°
5%
1 PM
29°
5%
2 PM
29°
5%
3 PM
29°
5%
4 PM
29°
3%
5 PM
28°
3%
6 PM
27°
3%
7 PM
26°
3%
8 PM
26°
3%
9 PM
23°
3%
10 PM
22°
3%
7-Day Forecast
Tonight
33° 21°
Partly Cloudy with a 25% chance of rain.
Wed
29° 17°
Partly Cloudy.
Thu
27° 16°
Mostly Clear.
Fri
26° 16°
Mostly Cloudy with a 70% chance of rain.
Sat
29° 19°
Overcast with a 57% chance of rain.
Sun
33° 22°
Thunderstorm, 55% chance.
Mon
33° 23°
Thunderstorm, 52% chance.
TimeTempConditionsPrecipWindHumidity
Now 24° Partly Cloudy 25% 4 mph WNW 94%
12 AM 24° Partly Cloudy 31% 4 mph WNW 95%
1 AM 24° Mostly Clear 4% 5 mph WNW 95%
2 AM 24° Mostly Clear 5% 5 mph WNW 95%
3 AM 23° Mostly Clear 5% 5 mph NW 95%
4 AM 22° Mostly Clear 8% 5 mph NW 95%
5 AM 22° Mostly Clear 8% 5 mph NW 94%
6 AM 22° Partly Cloudy 4% 5 mph NNW 93%
7 AM 22° Partly Cloudy 4% 5 mph NNW 92%
8 AM 23° Partly Cloudy 5% 6 mph N 87%
9 AM 25° Mostly Clear 5% 6 mph N 82%
10 AM 26° Partly Cloudy 5% 6 mph N 77%
11 AM 27° Partly Cloudy 5% 6 mph N 74%
12 PM 27° Mostly Cloudy 5% 6 mph NNW 71%
1 PM 29° Overcast 5% 8 mph NNW 69%
2 PM 29° Mostly Cloudy 5% 8 mph NNW 69%
3 PM 29° Mostly Cloudy 5% 9 mph NNW 69%
4 PM 29° Mostly Cloudy 3% 10 mph N 70%
5 PM 28° Partly Cloudy 3% 10 mph N 72%
6 PM 27° Partly Cloudy 3% 10 mph N 75%
7 PM 26° Partly Cloudy 3% 10 mph N 77%
8 PM 26° Partly Cloudy 3% 9 mph N 78%
9 PM 23° Partly Cloudy 3% 9 mph N 80%
10 PM 22° Partly Cloudy 3% 9 mph N 81%
15-Day Forecast
Today
7/21
Partly Cloudy
25%
21°
33°
Wed
7/22
Partly Cloudy
8%
17°
29°
Thu
7/23
Mostly Clear
3%
16°
27°
Fri
7/24
Mostly Cloudy
70%
16°
26°
Sat
7/25
Overcast
57%
19°
29°
Sun
7/26
Thunderstorm
55%
22°
33°
Mon
7/27
Thunderstorm
52%
23°
33°
Tue
7/28
Drizzle
53%
20°
32°
Wed
7/29
Drizzle
44%
18°
29°
Thu
7/30
Drizzle
44%
16°
29°
Fri
7/31
Drizzle
36%
16°
29°
Sat
8/1
Clear
60%
18°
30°
Sun
8/2
Drizzle
60%
19°
31°
Mon
8/3
Drizzle
60%
19°
31°
Tue
8/4
Drizzle
60%
20°
31°
52
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
52 AQI 9.6 µg/m³
O3
Ground-level ozone
26 AQI 29 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 52 Moderate 26 52
Thu 36 Good 26 36
Fri 32 Good 32 27
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 Wed Jul 22, 02:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE1058 J/kg
MLCAPE1459 J/kg
MUCAPE2065 J/kg
SBCIN-93 J/kg
MLCIN0 J/kg
Lifted Index-3.0
Kinematics
0–6 km Shear39 kt
0–1 km Shear13 kt
Eff. Shear46 kt
0–1 km SRH-84
0–3 km SRH-127
Eff. SRH-127
Storm Motion249° @ 27 kt
0–1 km EHI-0.6
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index21.6
Thermo & Levels
PWAT1.71 in
0–3 km LR4.2 °C/km
700–500 LR6.0 °C/km
Total Totals42.1
LCL976 hPa
LFC688 hPa
EL182 hPa
Freezing Lvl16,060 ft