Extreme Heat Warning — Jefferson, IL, Wayne, IL, Edwards, IL, Wabash, IL, Perry, 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: 2:26 AM CDT  ·  Refresh
25°C
Feels like 28°
Clear
▲ 38°  /  ▼ 23°
Wind
2 mph SSW
Humidity
79%
Dew Point
22°
Pressure
29.45 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
0%
Sunrise
6:25 AM
Sunset
7:17 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Hardin County is currently clear at 25°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2375 J/kg) — isolated convective development possible. Sunrise: 6:25AM · Sunset: 7:17PM.

Alerts

Extreme Heat Warning
Jefferson, IL, Wayne, IL, Edwards, IL, Wabash, IL, Perry, 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
52 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
25°
16%
3 AM
24°
9%
4 AM
24°
9%
5 AM
23°
9%
6 AM
23°
7%
7 AM
23°
14%
8 AM
26°
15%
9 AM
30°
15%
10 AM
32°
15%
11 AM
33°
15%
12 PM
34°
19%
1 PM
37°
19%
2 PM
36°
21%
3 PM
36°
10%
4 PM
36°
14%
5 PM
36°
14%
6 PM
34°
9%
7 PM
33°
9%
8 PM
32°
9%
9 PM
27°
9%
10 PM
27°
19%
11 PM
27°
19%
12 AM
26°
19%
1 AM
27°
20%
7-Day Forecast
Today
38° 23°
Clear with a 21% chance of rain.
Sat
39° 23°
Mostly Clear with a 51% chance of rain.
Sun
35° 18°
Partly Cloudy with a 39% chance of rain.
Mon
32° 14°
Partly Cloudy.
Tue
38° 19°
Clear.
Wed
41° 22°
Clear with a 28% chance of rain.
Thu
38° 20°
Clear with a 28% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 25° Clear 16% 2 mph SSW 79%
3 AM 24° Clear 9% 3 mph S 79%
4 AM 24° Clear 9% 3 mph S 80%
5 AM 23° Clear 9% 2 mph S 81%
6 AM 23° Clear 7% 2 mph SSW 82%
7 AM 23° Clear 14% 2 mph SSW 80%
8 AM 26° Clear 15% 3 mph SSW 72%
9 AM 30° Clear 15% 3 mph SSW 64%
10 AM 32° Clear 15% 3 mph SW 57%
11 AM 33° Clear 15% 2 mph SW 52%
12 PM 34° Clear 19% 2 mph SW 47%
1 PM 37° Clear 19% 2 mph SW 44%
2 PM 36° Mostly Clear 21% 3 mph SW 45%
3 PM 36° Mostly Clear 10% 4 mph SW 46%
4 PM 36° Mostly Clear 14% 3 mph SSW 48%
5 PM 36° Mostly Clear 14% 3 mph SSW 51%
6 PM 34° Clear 9% 3 mph SSW 55%
7 PM 33° Clear 9% 3 mph SSW 60%
8 PM 32° Clear 9% 3 mph SSW 63%
9 PM 27° Clear 9% 3 mph SSW 67%
10 PM 27° Clear 19% 3 mph SW 69%
11 PM 27° Clear 19% 3 mph SW 70%
12 AM 26° Clear 19% 3 mph SW 72%
1 AM 27° Clear 20% 3 mph SW 72%
15-Day Forecast
Today
9/4
Clear
21%
23°
38°
Sat
9/5
Mostly Clear
51%
23°
39°
Sun
9/6
Partly Cloudy
39%
18°
35°
Mon
9/7
Partly Cloudy
3%
14°
32°
Tue
9/8
Clear
3%
19°
38°
Wed
9/9
Clear
28%
22°
41°
Thu
9/10
Clear
28%
20°
38°
Fri
9/11
Rain
68%
17°
36°
Sat
9/12
Rain
44%
21°
42°
Sun
9/13
Drizzle
44%
18°
36°
Mon
9/14
Clear
60%
21°
37°
Tue
9/15
Drizzle
60%
21°
37°
Wed
9/16
Drizzle
60%
21°
37°
Thu
9/17
Drizzle
60%
19°
34°
Fri
9/18
Clear
25%
18°
34°
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 9.9 µg/m³
O3
Ground-level ozone
43 AQI 47 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 52 Moderate 43 52
Sat 57 Moderate 46 57
Sun 54 Moderate 42 54
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 Fri Sep 4, 06:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE366 J/kg
MLCAPE643 J/kg
MUCAPE913 J/kg
SBCIN-436 J/kg
MLCIN-184 J/kg
Lifted Index-1.1
Kinematics
0–6 km Shear3 kt
0–1 km Shear11 kt
Eff. Shear1 kt
0–1 km SRH26
0–3 km SRH20
Eff. SRH7
Storm Motion311° @ 12 kt
0–1 km EHI0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index34.6
Thermo & Levels
PWAT1.62 in
0–3 km LR4.9 °C/km
700–500 LR5.4 °C/km
Total Totals46.9
LCL953 hPa
LFC586 hPa
EL265 hPa
Freezing Lvl16,342 ft