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

Hardin County, Illinois, United States

Last updated: 8:07 AM CDT  ·  Refresh
24°C
Feels like 27°
Mostly Clear
▲ 34°  /  ▼ 23°
Wind
8 mph SSW
Humidity
84%
Dew Point
22°
Pressure
29.55 inHg
Visibility
9 mi
UV Index
5.3
Cloud Cover
15%
Sunrise
6:04 AM
Sunset
7:51 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Hardin County is currently mostly clear at 25°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 3701 J/kg) — isolated convective development possible. Sunrise: 6:04AM · Sunset: 7:51PM.

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
47 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
24°
11%
9 AM
26°
19%
10 AM
28°
20%
11 AM
29°
14%
12 PM
31°
14%
1 PM
33°
3%
2 PM
33°
3%
3 PM
33°
3%
4 PM
33°
3%
5 PM
32°
3%
6 PM
32°
3%
7 PM
31°
3%
8 PM
29°
3%
9 PM
27°
3%
10 PM
26°
3%
11 PM
26°
3%
12 AM
26°
3%
1 AM
25°
3%
2 AM
25°
3%
3 AM
24°
3%
4 AM
24°
3%
5 AM
24°
3%
6 AM
24°
3%
7 AM
24°
3%
7-Day Forecast
Today
34° 23°
Mostly Clear.
Tue
36° 24°
Mostly Clear.
Wed
37° 24°
Mostly Clear with a 66% chance of rain.
Thu
35° 24°
Mostly Clear with a 61% chance of rain.
Fri
33° 23°
Partly Cloudy with a 59% chance of rain.
Sat
37° 22°
Clear with a 26% chance of rain.
Sun
37° 24°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 24° Mostly Clear 11% 8 mph SSW 84%
9 AM 26° Clear 19% 10 mph SW 77%
10 AM 28° Clear 20% 11 mph SW 72%
11 AM 29° Clear 14% 11 mph SW 68%
12 PM 31° Mostly Clear 14% 11 mph SW 63%
1 PM 33° Partly Cloudy 3% 12 mph SW 60%
2 PM 33° Partly Cloudy 3% 11 mph SW 59%
3 PM 33° Mostly Clear 3% 11 mph SW 58%
4 PM 33° Partly Cloudy 3% 11 mph SW 58%
5 PM 32° Partly Cloudy 3% 9 mph SW 62%
6 PM 32° Partly Cloudy 3% 8 mph SW 68%
7 PM 31° Partly Cloudy 3% 6 mph SSW 73%
8 PM 29° Partly Cloudy 3% 6 mph SSW 75%
9 PM 27° Mostly Clear 3% 7 mph SSW 77%
10 PM 26° Mostly Clear 3% 7 mph SSW 78%
11 PM 26° Mostly Clear 3% 7 mph SSW 79%
12 AM 26° Mostly Clear 3% 8 mph SSW 80%
1 AM 25° Mostly Clear 3% 8 mph SSW 81%
2 AM 25° Mostly Clear 3% 8 mph SSW 82%
3 AM 24° Mostly Clear 3% 9 mph SSW 83%
4 AM 24° Mostly Clear 3% 9 mph SSW 84%
5 AM 24° Mostly Clear 3% 9 mph SSW 85%
6 AM 24° Mostly Clear 3% 9 mph SSW 86%
7 AM 24° Clear 3% 10 mph SSW 86%
15-Day Forecast
Today
8/10
Mostly Clear
14%
23°
34°
Tue
8/11
Mostly Clear
11%
24°
36°
Wed
8/12
Mostly Clear
66%
24°
37°
Thu
8/13
Mostly Clear
61%
24°
35°
Fri
8/14
Partly Cloudy
59%
23°
33°
Sat
8/15
Clear
26%
22°
37°
Sun
8/16
Clear
18%
24°
37°
Mon
8/17
Mostly Cloudy
39%
21°
33°
Tue
8/18
Rain
58%
19°
33°
Wed
8/19
Thunderstorm
45%
22°
33°
Thu
8/20
Drizzle
60%
22°
35°
Fri
8/21
Drizzle
60%
21°
33°
Sat
8/22
Clear
60%
21°
33°
Sun
8/23
Drizzle
60%
21°
34°
Mon
8/24
Clear
60%
20°
33°
47
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
47 AQI 8.4 µg/m³
O3
Ground-level ozone
44 AQI 49 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Tue 47 Good 44 47
Wed 42 Good 42 24
Thu 40 Good 40 28
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
SBCAPE1236 J/kg
MLCAPE1415 J/kg
MUCAPE1583 J/kg
SBCIN-316 J/kg
MLCIN0 J/kg
Lifted Index-6.0
Kinematics
0–6 km Shear9 kt
0–1 km Shear18 kt
Eff. Shear14 kt
0–1 km SRH103
0–3 km SRH119
Eff. SRH99
Storm Motion18° @ 7 kt
0–1 km EHI0.8
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index27.0
Thermo & Levels
PWAT1.59 in
0–3 km LR4.1 °C/km
700–500 LR8.0 °C/km
Total Totals53.0
LCL965 hPa
LFC664 hPa
EL202 hPa
Freezing Lvl14,767 ft