Excessive 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

Caldwell County, Kentucky, United States

Last updated: 2:27 AM CDT  ·  Refresh
25°C
Feels like 28°
Clear
▲ 37°  /  ▼ 23°
Wind
3 mph S
Humidity
80%
Dew Point
22°
Pressure
29.41 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
0%
Sunrise
6:24 AM
Sunset
7:15 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Caldwell County is currently clear at 25°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1883 J/kg) — isolated convective development possible. Sunrise: 6:24AM · Sunset: 7:15PM.

Alerts

Excessive 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
55 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
25°
16%
3 AM
24°
7%
4 AM
24°
4%
5 AM
22°
4%
6 AM
22°
4%
7 AM
23°
4%
8 AM
26°
9%
9 AM
29°
9%
10 AM
32°
7%
11 AM
33°
7%
12 PM
34°
10%
1 PM
37°
15%
2 PM
36°
19%
3 PM
36°
21%
4 PM
36°
10%
5 PM
36°
10%
6 PM
34°
5%
7 PM
33°
5%
8 PM
32°
9%
9 PM
27°
9%
10 PM
27°
9%
11 PM
26°
9%
12 AM
26°
9%
1 AM
26°
9%
7-Day Forecast
Today
37° 23°
Clear.
Sat
39° 23°
Mostly Clear with a 51% chance of rain.
Sun
36° 19°
Mostly Clear.
Mon
32° 14°
Mostly Clear.
Tue
37° 19°
Clear.
Wed
39° 21°
Clear with a 28% chance of rain.
Thu
37° 20°
Clear with a 28% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 25° Clear 16% 3 mph S 80%
3 AM 24° Clear 7% 3 mph S 81%
4 AM 24° Clear 4% 3 mph S 82%
5 AM 22° Clear 4% 3 mph S 83%
6 AM 22° Clear 4% 2 mph SSW 85%
7 AM 23° Clear 4% 2 mph SSW 82%
8 AM 26° Clear 9% 3 mph SSW 72%
9 AM 29° Clear 9% 3 mph SW 62%
10 AM 32° Clear 7% 3 mph SW 54%
11 AM 33° Clear 7% 3 mph SW 49%
12 PM 34° Clear 10% 2 mph WSW 45%
1 PM 37° Clear 15% 2 mph WSW 43%
2 PM 36° Clear 19% 2 mph WSW 44%
3 PM 36° Clear 21% 3 mph SW 44%
4 PM 36° Clear 10% 3 mph SW 46%
5 PM 36° Clear 10% 4 mph SW 51%
6 PM 34° Mostly Clear 5% 5 mph SW 55%
7 PM 33° Mostly Clear 5% 5 mph SW 59%
8 PM 32° Mostly Clear 9% 6 mph SW 61%
9 PM 27° Mostly Clear 9% 6 mph SSW 63%
10 PM 27° Mostly Clear 9% 6 mph SW 65%
11 PM 26° Mostly Clear 9% 5 mph SW 65%
12 AM 26° Mostly Clear 9% 5 mph SW 66%
1 AM 26° Mostly Clear 9% 5 mph SW 66%
15-Day Forecast
Today
9/4
Clear
19%
23°
37°
Sat
9/5
Mostly Clear
51%
23°
39°
Sun
9/6
Mostly Clear
13%
19°
36°
Mon
9/7
Mostly Clear
3%
14°
32°
Tue
9/8
Clear
3%
19°
37°
Wed
9/9
Clear
28%
21°
39°
Thu
9/10
Clear
28%
20°
37°
Fri
9/11
Drizzle
43%
17°
37°
Sat
9/12
Rain
68%
21°
41°
Sun
9/13
Drizzle
51%
17°
37°
Mon
9/14
Clear
25%
20°
36°
Tue
9/15
Clear
60%
21°
37°
Wed
9/16
Drizzle
60%
21°
37°
Thu
9/17
Drizzle
60%
19°
34°
Fri
9/18
Clear
25%
19°
34°
55
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
55 AQI 11.1 µg/m³
O3
Ground-level ozone
42 AQI 45 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 55 Moderate 42 55
Sat 57 Moderate 45 57
Sun 55 Moderate 42 55
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
SBCAPE341 J/kg
MLCAPE642 J/kg
MUCAPE793 J/kg
SBCIN-438 J/kg
MLCIN-184 J/kg
Lifted Index-0.3
Kinematics
0–6 km Shear5 kt
0–1 km Shear8 kt
Eff. Shear3 kt
0–1 km SRH17
0–3 km SRH24
Eff. SRH26
Storm Motion334° @ 10 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index32.2
Thermo & Levels
PWAT1.62 in
0–3 km LR4.9 °C/km
700–500 LR5.1 °C/km
Total Totals45.0
LCL952 hPa
LFC703 hPa
EL268 hPa
Freezing Lvl16,335 ft