Heat Advisory — Hancock, KY, Ohio, KY, Butler, KY, Logan, KY, Warren, KY, Simpson, KY, Breckinridge, KY, Meade, KY, Grayson, KY, Hardin, KY, Bullitt, KY, Jefferson, KY, Oldham, KY, Trimble, KY, Henry, KY, Shelby, KY, Franklin, KY, Scott, KY, Harrison, KY, Spencer, KY, Anderson, KY, Woodford, KY, Fayette, KY, Bourbon, KY, Nicholas, KY, Nelson, KY, Washington, KY, Mercer, KY, Jessamine, KY, Clark, KY, Larue, KY, Marion, KY, Boyle, KY, Garrard, KY, Madison, KY, Edmonson, KY, Hart, KY, Green, KY, Taylor, KY, Casey, KY, Lincoln, KY, Allen, KY, Barren, KY, Monroe, KY, Metcalfe, KY, Adair, KY, Russell, KY, Cumberland, KY, Clinton, KY 8:00 PM Excessive Heat Warning — Hancock, KY, Breckinridge, KY, Meade, KY, Ohio, KY, Grayson, KY, Hardin, KY, Bullitt, KY, Jefferson, KY, Oldham, KY, Trimble, KY, Henry, KY, Shelby, KY, Franklin, KY, Scott, KY, Harrison, KY, Spencer, KY, Anderson, KY, Woodford, KY, Fayette, KY, Bourbon, KY, Nicholas, KY, Nelson, KY, Washington, KY, Mercer, KY, Jessamine, KY, Clark, KY, Larue, KY, Marion, KY, Boyle, KY, Garrard, KY, Madison, KY, Butler, KY, Edmonson, KY, Hart, KY, Green, KY, Taylor, KY, Casey, KY, Lincoln, 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: 3:24 PM CDT  ·  Refresh
32°C
Feels like 39°
Mostly Clear
▲ 32°  /  ▼ 22°
Wind
5 mph SW
Humidity
67%
Dew Point
25°
Pressure
29.35 inHg
Visibility
10 mi
UV Index
8.5
Cloud Cover
23%
Sunrise
5:27 AM
Sunset
8:10 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Grayson County is currently mostly clear at 32°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 4291 J/kg) — isolated convective development possible. Sunrise: 5:27AM · Sunset: 8:10PM.

Alerts

Heat Advisory
Hancock, KY, Ohio, KY, Butler, KY, Logan, KY, Warren, KY, Simpson, KY, Breckinridge, KY, Meade, KY, Grayson, KY, Hardin, KY, Bullitt, KY, Jefferson, KY, Oldham, KY, Trimble, KY, Henry, KY, Shelby, KY, Franklin, KY, Scott, KY, Harrison, KY, Spencer, KY, Anderson, KY, Woodford, KY, Fayette, KY, Bourbon, KY, Nicholas, KY, Nelson, KY, Washington, KY, Mercer, KY, Jessamine, KY, Clark, KY, Larue, KY, Marion, KY, Boyle, KY, Garrard, KY, Madison, KY, Edmonson, KY, Hart, KY, Green, KY, Taylor, KY, Casey, KY, Lincoln, KY, Allen, KY, Barren, KY, Monroe, KY, Metcalfe, KY, Adair, KY, Russell, KY, Cumberland, KY, Clinton, KY
Expires 8:00 PM
Excessive Heat Warning
Hancock, KY, Breckinridge, KY, Meade, KY, Ohio, KY, Grayson, KY, Hardin, KY, Bullitt, KY, Jefferson, KY, Oldham, KY, Trimble, KY, Henry, KY, Shelby, KY, Franklin, KY, Scott, KY, Harrison, KY, Spencer, KY, Anderson, KY, Woodford, KY, Fayette, KY, Bourbon, KY, Nicholas, KY, Nelson, KY, Washington, KY, Mercer, KY, Jessamine, KY, Clark, KY, Larue, KY, Marion, KY, Boyle, KY, Garrard, KY, Madison, KY, Butler, KY, Edmonson, KY, Hart, KY, Green, KY, Taylor, KY, Casey, KY, Lincoln, 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
57 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
32°
3%
4 PM
31°
3%
5 PM
32°
3%
6 PM
31°
3%
7 PM
30°
3%
8 PM
29°
3%
9 PM
28°
3%
10 PM
27°
3%
11 PM
26°
3%
12 AM
26°
3%
1 AM
24°
3%
2 AM
24°
3%
3 AM
24°
7%
4 AM
23°
6%
5 AM
22°
6%
6 AM
22°
17%
7 AM
23°
17%
8 AM
25°
17%
9 AM
27°
7%
10 AM
29°
10%
11 AM
29°
10%
12 PM
30°
10%
1 PM
31°
10%
2 PM
32°
10%
7-Day Forecast
Today
32° 22°
Partly Cloudy.
Wed
34° 22°
Mostly Clear.
Thu
35° 23°
Clear.
Fri
32° 24°
Mostly Clear with a 52% chance of rain.
Sat
30° 22°
Drizzle, 60% chance.
Sun
30° 22°
Drizzle, 60% chance.
Mon
29° 22°
Clear with a 35% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 32° Mostly Clear 3% 5 mph SW 67%
4 PM 31° Partly Cloudy 3% 5 mph SW 69%
5 PM 32° Partly Cloudy 3% 5 mph SW 71%
6 PM 31° Partly Cloudy 3% 4 mph SW 76%
7 PM 30° Mostly Clear 3% 3 mph SSW 80%
8 PM 29° Partly Cloudy 3% 3 mph SSW 84%
9 PM 28° Partly Cloudy 3% 3 mph S 87%
10 PM 27° Mostly Clear 3% 4 mph S 89%
11 PM 26° Mostly Clear 3% 4 mph S 91%
12 AM 26° Mostly Clear 3% 4 mph S 92%
1 AM 24° Mostly Clear 3% 4 mph S 93%
2 AM 24° Mostly Clear 3% 3 mph S 93%
3 AM 24° Mostly Clear 7% 3 mph S 94%
4 AM 23° Mostly Clear 6% 2 mph S 94%
5 AM 22° Mostly Clear 6% 2 mph SSE 94%
6 AM 22° Partly Cloudy 17% 2 mph SE 94%
7 AM 23° Partly Cloudy 17% 2 mph SE 91%
8 AM 25° Mostly Clear 17% 2 mph SE 85%
9 AM 27° Clear 7% 2 mph SE 80%
10 AM 29° Clear 10% 2 mph SSE 76%
11 AM 29° Clear 10% 2 mph S 73%
12 PM 30° Clear 10% 2 mph SSW 71%
1 PM 31° Clear 10% 2 mph SW 69%
2 PM 32° Clear 10% 3 mph SW 68%
15-Day Forecast
Today
6/30
Partly Cloudy
3%
22°
32°
Wed
7/1
Mostly Clear
17%
22°
34°
Thu
7/2
Clear
16%
23°
35°
Fri
7/3
Mostly Clear
52%
24°
32°
Sat
7/4
Drizzle
60%
22°
30°
Sun
7/5
Drizzle
60%
22°
30°
Mon
7/6
Clear
35%
22°
29°
Tue
7/7
Rain
81%
21°
29°
Wed
7/8
Thunderstorm
90%
21°
29°
Thu
7/9
Drizzle
60%
21°
29°
Fri
7/10
Drizzle
60%
21°
28°
Sat
7/11
Drizzle
60%
20°
28°
Sun
7/12
Drizzle
60%
19°
28°
Mon
7/13
Drizzle
60%
19°
27°
Tue
7/14
Drizzle
60%
19°
27°
57
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
57 AQI 12.5 µg/m³
O3
Ground-level ozone
32 AQI 36 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Wed 57 Moderate 32 57
Thu 57 Moderate 34 57
Fri 49 Good 33 49
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 Tue Jun 30, 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
SBCAPE4477 J/kg
MLCAPE2721 J/kg
MUCAPE4477 J/kg
SBCIN0 J/kg
MLCIN-0 J/kg
Lifted Index-9.4
Kinematics
0–6 km Shear4 kt
0–1 km Shear1 kt
Eff. Shear3 kt
0–1 km SRH-4
0–3 km SRH-17
Eff. SRH-17
Storm Motion195° @ 16 kt
0–1 km EHI-0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index13.0
Thermo & Levels
PWAT1.32 in
0–3 km LR6.2 °C/km
700–500 LR7.5 °C/km
Total Totals42.1
LCL895 hPa
LFC994 hPa
EL138 hPa
Freezing Lvl14,957 ft