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

Grayson County, Kentucky, United States

Last updated: 6:02 PM CDT  ·  Refresh
33°C
Feels like 40°
Clear
▲ 34°  /  ▼ 23°
Wind
5 mph SW
Humidity
64%
Dew Point
23°
Pressure
29,34 inHg
Visibility
10 mi
UV Index
4,2
Cloud Cover
1%
Sunrise
6:01 AM
Sunset
7:37 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Grayson County is currently clear at 33°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 3378 J/kg) — isolated convective development possible. Sunrise: 6:01AM · Sunset: 7:37PM.

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
49 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
33°
4%
7 PM
32°
23%
8 PM
31°
23%
9 PM
29°
23%
10 PM
28°
23%
11 PM
27°
23%
12 AM
27°
15%
1 AM
27°
3%
2 AM
26°
3%
3 AM
26°
3%
4 AM
24°
3%
5 AM
23°
3%
6 AM
23°
3%
7 AM
23°
3%
8 AM
26°
8%
9 AM
28°
8%
10 AM
29°
8%
11 AM
30°
11%
12 PM
31°
21%
1 PM
34°
21%
2 PM
34°
26%
3 PM
34°
26%
4 PM
34°
26%
5 PM
34°
30%
7-Day Forecast
Tonight
34° 23°
Clear with a 23% chance of rain.
Sun
35° 23°
Clear with a 30% chance of rain.
Mon
33° 22°
Partly Cloudy with a 60% chance of rain.
Tue
30° 19°
Clear with a 61% chance of rain.
Wed
32° 19°
Drizzle, 55% chance.
Thu
30° 19°
Drizzle, 64% chance.
Fri
31° 19°
Mostly Cloudy with a 42% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 33° Clear 4% 5 mph SW 64%
7 PM 32° Clear 23% 5 mph SW 70%
8 PM 31° Clear 23% 4 mph SSW 72%
9 PM 29° Clear 23% 4 mph SSW 73%
10 PM 28° Clear 23% 4 mph SW 74%
11 PM 27° Clear 23% 4 mph SSW 74%
12 AM 27° Clear 15% 4 mph SSW 75%
1 AM 27° Clear 3% 5 mph SSW 72%
2 AM 26° Clear 3% 5 mph SSW 74%
3 AM 26° Clear 3% 5 mph SSW 75%
4 AM 24° Clear 3% 6 mph SSW 76%
5 AM 23° Clear 3% 6 mph SSW 77%
6 AM 23° Clear 3% 6 mph SW 77%
7 AM 23° Mostly Clear 3% 6 mph SSW 77%
8 AM 26° Clear 8% 8 mph SW 70%
9 AM 28° Clear 8% 9 mph SW 68%
10 AM 29° Clear 8% 9 mph WSW 65%
11 AM 30° Clear 11% 9 mph WSW 62%
12 PM 31° Mostly Clear 21% 8 mph WSW 60%
1 PM 34° Mostly Clear 21% 8 mph WSW 59%
2 PM 34° Mostly Clear 26% 8 mph WSW 58%
3 PM 34° Clear 26% 9 mph WSW 57%
4 PM 34° Clear 26% 9 mph WSW 56%
5 PM 34° Mostly Clear 30% 8 mph WSW 60%
15-Day Forecast
Today
8/15
Clear
23%
23°
34°
Sun
8/16
Clear
30%
23°
35°
Mon
8/17
Partly Cloudy
60%
22°
33°
Tue
8/18
Clear
61%
19°
30°
Wed
8/19
Drizzle
55%
19°
32°
Thu
8/20
Drizzle
64%
19°
30°
Fri
8/21
Mostly Cloudy
42%
19°
31°
Sat
8/22
Partly Cloudy
24%
18°
30°
Sun
8/23
Clear
20%
17°
31°
Mon
8/24
Clear
19%
18°
32°
Tue
8/25
Drizzle
46%
18°
33°
Wed
8/26
Drizzle
60%
19°
31°
Thu
8/27
Drizzle
60%
18°
29°
Fri
8/28
Drizzle
60%
18°
29°
Sat
8/29
Drizzle
60%
18°
30°
49
Good
U.S. Air Quality Index · Dominant: PM2.5
50 100 150 200

Air quality is satisfactory and poses little or no health risk.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
Dominant
49 AQI 8.9 µg/m³
O3
Ground-level ozone
34 AQI 38 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Sun 49 Good 34 49
Mon 52 Moderate 39 52
Tue 42 Good 38 42
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 sam. août 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
SBCAPE2833 J/kg
MLCAPE1621 J/kg
MUCAPE2833 J/kg
SBCIN-54 J/kg
MLCIN-33 J/kg
Lifted Index-5.3
Kinematics
0–6 km Shear15 kt
0–1 km Shear4 kt
Eff. Shear14 kt
0–1 km SRH23
0–3 km SRH52
Eff. SRH52
Storm Motion337° @ 20 kt
0–1 km EHI0.4
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index30.3
Thermo & Levels
PWAT1.71 in
0–3 km LR7.0 °C/km
700–500 LR5.7 °C/km
Total Totals44.8
LCL867 hPa
LFC825 hPa
EL136 hPa
Freezing Lvl16,201 ft