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

Marshall County, Kentucky, United States

Last updated: 2:26 AM CDT  ·  Refresh
26°C
Feels like 29°
Clear
▲ 36°  /  ▼ 23°
Wind
3 mph SSE
Humidity
81%
Dew Point
23°
Pressure
29.51 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
6%
Sunrise
6:26 AM
Sunset
7:17 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Marshall County is currently clear at 25°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2259 J/kg) — isolated convective development possible. Sunrise: 6:26AM · Sunset: 7:17PM.

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
52 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
26°
13%
3 AM
25°
4%
4 AM
24°
4%
5 AM
23°
4%
6 AM
23°
4%
7 AM
24°
4%
8 AM
26°
9%
9 AM
29°
9%
10 AM
31°
7%
11 AM
32°
7%
12 PM
33°
8%
1 PM
36°
11%
2 PM
36°
11%
3 PM
36°
8%
4 PM
36°
10%
5 PM
36°
10%
6 PM
34°
5%
7 PM
33°
5%
8 PM
32°
5%
9 PM
28°
9%
10 PM
27°
19%
11 PM
27°
19%
12 AM
27°
19%
1 AM
28°
20%
7-Day Forecast
Today
36° 23°
Clear.
Sat
37° 23°
Mostly Clear with a 51% chance of rain.
Sun
37° 19°
Clear.
Mon
32° 16°
Clear.
Tue
37° 20°
Clear.
Wed
39° 22°
Clear.
Thu
37° 21°
Rain, 28% chance.
TimeTempConditionsPrecipWindHumidity
Now 26° Clear 13% 3 mph SSE 81%
3 AM 25° Clear 4% 4 mph S 83%
4 AM 24° Clear 4% 3 mph SSE 85%
5 AM 23° Clear 4% 3 mph S 86%
6 AM 23° Clear 4% 3 mph S 87%
7 AM 24° Clear 4% 2 mph SSW 84%
8 AM 26° Clear 9% 2 mph SSW 76%
9 AM 29° Clear 9% 3 mph SW 67%
10 AM 31° Clear 7% 4 mph SSW 60%
11 AM 32° Clear 7% 4 mph SSW 56%
12 PM 33° Clear 8% 4 mph SW 50%
1 PM 36° Clear 11% 3 mph SW 47%
2 PM 36° Clear 11% 3 mph SW 45%
3 PM 36° Clear 8% 3 mph SW 44%
4 PM 36° Clear 10% 3 mph WSW 46%
5 PM 36° Clear 10% 2 mph SW 50%
6 PM 34° Clear 5% 2 mph SSW 54%
7 PM 33° Clear 5% 2 mph S 58%
8 PM 32° Clear 5% 3 mph S 61%
9 PM 28° Clear 9% 4 mph S 63%
10 PM 27° Clear 19% 4 mph S 64%
11 PM 27° Clear 19% 3 mph S 66%
12 AM 27° Clear 19% 3 mph SSW 67%
1 AM 28° Clear 20% 3 mph SSW 68%
15-Day Forecast
Today
9/4
Clear
13%
23°
36°
Sat
9/5
Mostly Clear
51%
23°
37°
Sun
9/6
Clear
13%
19°
37°
Mon
9/7
Clear
3%
16°
32°
Tue
9/8
Clear
3%
20°
37°
Wed
9/9
Clear
17%
22°
39°
Thu
9/10
Rain
28%
21°
37°
Fri
9/11
Drizzle
43%
18°
37°
Sat
9/12
Rain
68%
21°
41°
Sun
9/13
Drizzle
51%
19°
37°
Mon
9/14
Clear
60%
21°
36°
Tue
9/15
Drizzle
60%
21°
36°
Wed
9/16
Drizzle
60%
21°
36°
Thu
9/17
Drizzle
60%
19°
34°
Fri
9/18
Clear
25%
19°
33°
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 9.5 µg/m³
O3
Ground-level ozone
37 AQI 41 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 52 Moderate 37 52
Sat 57 Moderate 40 57
Sun 55 Moderate 49 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
SBCAPE807 J/kg
MLCAPE839 J/kg
MUCAPE940 J/kg
SBCIN-356 J/kg
MLCIN-156 J/kg
Lifted Index-1.4
Kinematics
0–6 km Shear3 kt
0–1 km Shear8 kt
Eff. Shear1 kt
0–1 km SRH21
0–3 km SRH6
Eff. SRH2
Storm Motion319° @ 9 kt
0–1 km EHI0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index34.4
Thermo & Levels
PWAT1.70 in
0–3 km LR5.1 °C/km
700–500 LR5.0 °C/km
Total Totals45.3
LCL963 hPa
LFC736 hPa
EL233 hPa
Freezing Lvl16,699 ft