Heat Advisory — Jefferson, IL, Wayne, IL, Edwards, IL, Wabash, IL, Franklin, IL, Hamilton, IL, White, IL, Jackson, IL, Williamson, IL, Saline, IL, Gallatin, IL, Union, IL, Johnson, IL, Pope, IL, Hardin, IL, Alexander, IL, Pulaski, IL, Massac, IL, Gibson, IN, Pike, IN, Posey, IN, Vanderburgh, IN, Warrick, IN, Spencer, IN, Fulton, KY, Hickman, KY, Carlisle, KY, Ballard, KY, McCracken, KY, Graves, KY, Livingston, KY, Marshall, KY, Calloway, KY, Crittenden, KY, Lyon, KY, Trigg, KY, Caldwell, KY, Union, KY, Webster, KY, Hopkins, KY, Christian, KY, Henderson, KY, Daviess, KY, McLean, KY, Muhlenberg, KY, Todd, KY, Perry, MO, Bollinger, MO, Cape Girardeau, MO, Wayne, MO, Carter, MO, Ripley, MO, Butler, MO, Stoddard, MO, Scott, MO, Mississippi, MO, New Madrid, MO 8:00 PM

Webster County, Kentucky, United States

Last updated: 8:06 AM CDT  ·  Refresh
24°C
Feels like 26°
Mostly Clear
▲ 34°  /  ▼ 23°
Wind
9 mph SSW
Humidity
83%
Dew Point
22°
Pressure
29.56 inHg
Visibility
9 mi
UV Index
5.3
Cloud Cover
12%
Sunrise
6:02 AM
Sunset
7:48 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Webster County is currently mostly clear at 25°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 3508 J/kg) — isolated convective development possible. Sunrise: 6:02AM · Sunset: 7:48PM.

Alerts

Heat Advisory
Jefferson, IL, Wayne, IL, Edwards, IL, Wabash, IL, Franklin, IL, Hamilton, IL, White, IL, Jackson, IL, Williamson, IL, Saline, IL, Gallatin, IL, Union, IL, Johnson, IL, Pope, IL, Hardin, IL, Alexander, IL, Pulaski, IL, Massac, IL, Gibson, IN, Pike, IN, Posey, IN, Vanderburgh, IN, Warrick, IN, Spencer, IN, Fulton, KY, Hickman, KY, Carlisle, KY, Ballard, KY, McCracken, KY, Graves, KY, Livingston, KY, Marshall, KY, Calloway, KY, Crittenden, KY, Lyon, KY, Trigg, KY, Caldwell, KY, Union, KY, Webster, KY, Hopkins, KY, Christian, KY, Henderson, KY, Daviess, KY, McLean, KY, Muhlenberg, KY, Todd, KY, Perry, MO, Bollinger, MO, Cape Girardeau, MO, Wayne, MO, Carter, MO, Ripley, MO, Butler, MO, Stoddard, MO, Scott, MO, Mississippi, MO, New Madrid, MO
Expires 8:00 PM
43 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
24°
17%
9 AM
26°
25%
10 AM
28°
23%
11 AM
29°
23%
12 PM
31°
18%
1 PM
33°
3%
2 PM
33°
3%
3 PM
33°
3%
4 PM
33°
3%
5 PM
33°
3%
6 PM
33°
3%
7 PM
31°
3%
8 PM
31°
3%
9 PM
28°
3%
10 PM
27°
5%
11 PM
27°
5%
12 AM
27°
5%
1 AM
26°
5%
2 AM
26°
5%
3 AM
25°
5%
4 AM
25°
3%
5 AM
24°
3%
6 AM
24°
3%
7 AM
24°
3%
7-Day Forecast
Today
34° 23°
Mostly Clear with a 23% chance of rain.
Tue
35° 24°
Mostly Clear.
Wed
36° 24°
Clear with a 60% chance of rain.
Thu
34° 24°
Clear with a 73% chance of rain.
Fri
32° 22°
Rain, 51% chance.
Sat
35° 22°
Drizzle, 41% chance.
Sun
36° 24°
Clear with a 48% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 24° Mostly Clear 17% 9 mph SSW 83%
9 AM 26° Clear 25% 10 mph SW 77%
10 AM 28° Clear 23% 11 mph SW 72%
11 AM 29° Clear 23% 12 mph SW 68%
12 PM 31° Mostly Clear 18% 12 mph SW 64%
1 PM 33° Clear 3% 12 mph SW 61%
2 PM 33° Mostly Clear 3% 12 mph SW 60%
3 PM 33° Mostly Clear 3% 12 mph SW 59%
4 PM 33° Clear 3% 12 mph SW 59%
5 PM 33° Clear 3% 10 mph SW 62%
6 PM 33° Partly Cloudy 3% 9 mph SW 67%
7 PM 31° Partly Cloudy 3% 7 mph SW 72%
8 PM 31° Mostly Clear 3% 6 mph SSW 74%
9 PM 28° Mostly Clear 3% 7 mph SSW 76%
10 PM 27° Clear 5% 7 mph SSW 78%
11 PM 27° Clear 5% 7 mph SSW 79%
12 AM 27° Clear 5% 8 mph SSW 80%
1 AM 26° Clear 5% 8 mph SSW 81%
2 AM 26° Mostly Clear 5% 9 mph SSW 82%
3 AM 25° Mostly Clear 5% 9 mph SSW 82%
4 AM 25° Partly Cloudy 3% 9 mph SW 82%
5 AM 24° Mostly Clear 3% 9 mph SW 84%
6 AM 24° Mostly Clear 3% 10 mph SW 85%
7 AM 24° Clear 3% 10 mph SW 85%
15-Day Forecast
Today
8/10
Mostly Clear
23%
23°
34°
Tue
8/11
Mostly Clear
11%
24°
35°
Wed
8/12
Clear
60%
24°
36°
Thu
8/13
Clear
73%
24°
34°
Fri
8/14
Rain
51%
22°
32°
Sat
8/15
Drizzle
41%
22°
35°
Sun
8/16
Clear
48%
24°
36°
Mon
8/17
Drizzle
50%
21°
33°
Tue
8/18
Mostly Clear
35%
19°
33°
Wed
8/19
Thunderstorm
45%
21°
32°
Thu
8/20
Clear
60%
22°
34°
Fri
8/21
Drizzle
60%
21°
33°
Sat
8/22
Clear
60%
20°
32°
Sun
8/23
Drizzle
60%
21°
33°
Mon
8/24
Clear
60%
20°
32°
43
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
43 AQI 7.8 µg/m³
O3
Ground-level ozone
36 AQI 40 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Tue 43 Good 36 43
Wed 40 Good 40 27
Thu 39 Good 39 29
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 Mon Aug 10, 11:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE1230 J/kg
MLCAPE1329 J/kg
MUCAPE1460 J/kg
SBCIN-287 J/kg
MLCIN0 J/kg
Lifted Index-5.9
Kinematics
0–6 km Shear11 kt
0–1 km Shear17 kt
Eff. Shear14 kt
0–1 km SRH92
0–3 km SRH104
Eff. SRH76
Storm Motion12° @ 8 kt
0–1 km EHI0.7
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index27.4
Thermo & Levels
PWAT1.62 in
0–3 km LR4.1 °C/km
700–500 LR7.9 °C/km
Total Totals53.3
LCL963 hPa
LFC668 hPa
EL205 hPa
Freezing Lvl14,820 ft