Heat Advisory — Jefferson, IL, Perry, IL, Franklin, IL, Jackson, IL, Williamson, IL, Union, IL, Johnson, IL, Pope, IL, Alexander, IL, Pulaski, IL, Massac, IL, Fulton, KY, Hickman, KY, Carlisle, KY, Ballard, KY, McCracken, KY, Graves, KY, Livingston, KY, Marshall, KY, Calloway, 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 7:00 PM

Marshall County, Kentucky, United States

Last updated: 12:14 PM CDT  ·  Refresh
32°C
Feels like 41°
Partly Cloudy
▲ 35°  /  ▼ 22°
Wind
3 mph SW
Humidity
75%
Dew Point
27°
Pressure
29.51 inHg
Visibility
10 mi
UV Index
8.7
Cloud Cover
51%
Sunrise
5:54 AM
Sunset
8:05 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Marshall County is currently partly cloudy at 31°C. Precipitation is likely — peak probability 65% around 12 AM. Atmospheric instability is elevated (CAPE up to 4252 J/kg) — isolated convective development possible. Sunrise: 5:54AM · Sunset: 8:05PM.

Alerts

Heat Advisory
Jefferson, IL, Perry, IL, Franklin, IL, Jackson, IL, Williamson, IL, Union, IL, Johnson, IL, Pope, IL, Alexander, IL, Pulaski, IL, Massac, IL, Fulton, KY, Hickman, KY, Carlisle, KY, Ballard, KY, McCracken, KY, Graves, KY, Livingston, KY, Marshall, KY, Calloway, 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 7:00 PM
34 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
32°
5%
1 PM
34°
25%
2 PM
34°
29%
3 PM
34°
35%
4 PM
34°
34%
5 PM
34°
39%
6 PM
34°
37%
7 PM
33°
52%
8 PM
32°
48%
9 PM
29°
36%
10 PM
29°
55%
11 PM
28°
55%
12 AM
28°
64%
1 AM
27°
55%
2 AM
26°
43%
3 AM
24°
34%
4 AM
24°
20%
5 AM
23°
23%
6 AM
23°
10%
7 AM
24°
5%
8 AM
26°
5%
9 AM
27°
5%
10 AM
28°
5%
11 AM
28°
6%
7-Day Forecast
Today
35° 22°
Partly Cloudy with a 37% chance of rain.
Mon
36° 22°
Mostly Clear with a 64% chance of rain.
Tue
37° 23°
Mostly Clear with a 49% chance of rain.
Wed
31° 21°
Mostly Clear with a 44% chance of rain.
Thu
31° 18°
Clear.
Fri
29° 20°
Drizzle, 60% chance.
Sat
30° 19°
Rain, 81% chance.
TimeTempConditionsPrecipWindHumidity
Now 32° Partly Cloudy 5% 3 mph SW 75%
1 PM 34° Mostly Cloudy 25% 4 mph SW 70%
2 PM 34° Mostly Cloudy 29% 5 mph WSW 68%
3 PM 34° Mostly Cloudy 35% 5 mph WSW 67%
4 PM 34° Partly Cloudy 34% 6 mph WSW 68%
5 PM 34° Mostly Clear 39% 5 mph WSW 72%
6 PM 34° Mostly Clear 37% 5 mph WSW 74%
7 PM 33° Clear 52% 4 mph SW 78%
8 PM 32° Partly Cloudy 48% 3 mph SSW 82%
9 PM 29° Mostly Cloudy 36% 4 mph SSW 83%
10 PM 29° Overcast 55% 4 mph SSW 85%
11 PM 28° Mostly Cloudy 55% 3 mph SE 87%
12 AM 28° Rain 64% 6 mph E 89%
1 AM 27° Rain 55% 8 mph ENE 90%
2 AM 26° Rain 43% 5 mph E 91%
3 AM 24° Mostly Cloudy 34% 3 mph ESE 93%
4 AM 24° Mostly Cloudy 20% 3 mph SE 94%
5 AM 23° Partly Cloudy 23% 3 mph SSE 93%
6 AM 23° Partly Cloudy 10% 4 mph SSE 93%
7 AM 24° Partly Cloudy 5% 5 mph S 91%
8 AM 26° Mostly Clear 5% 5 mph S 87%
9 AM 27° Mostly Clear 5% 5 mph S 83%
10 AM 28° Mostly Clear 5% 5 mph S 80%
11 AM 28° Mostly Clear 6% 5 mph S 78%
15-Day Forecast
Today
7/26
Partly Cloudy
37%
22°
35°
Mon
7/27
Mostly Clear
64%
22°
36°
Tue
7/28
Mostly Clear
49%
23°
37°
Wed
7/29
Mostly Clear
44%
21°
31°
Thu
7/30
Clear
19%
18°
31°
Fri
7/31
Drizzle
60%
20°
29°
Sat
8/1
Rain
81%
19°
30°
Sun
8/2
Drizzle
60%
20°
31°
Mon
8/3
Drizzle
60%
21°
31°
Tue
8/4
Drizzle
60%
21°
32°
Wed
8/5
Drizzle
60%
22°
33°
Thu
8/6
Drizzle
60%
22°
32°
Fri
8/7
Drizzle
60%
21°
32°
Sat
8/8
Drizzle
60%
21°
32°
Sun
8/9
Drizzle
60%
22°
32°
34
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
34 AQI 6.2 µg/m³
O3
Ground-level ozone
31 AQI 34 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Mon 34 Good 31 34
Tue 51 Moderate 34 51
Wed 38 Good 38 32
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 Sun Jul 26, 16:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE5202 J/kg
MLCAPE3272 J/kg
MUCAPE5202 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index-8.1
Kinematics
0–6 km Shear23 kt
0–1 km Shear5 kt
Eff. Shear27 kt
0–1 km SRH-0
0–3 km SRH-44
Eff. SRH-44
Storm Motion299° @ 19 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index26.6
Thermo & Levels
PWAT1.78 in
0–3 km LR6.5 °C/km
700–500 LR5.6 °C/km
Total Totals46.2
LCL931 hPa
LFC999 hPa
EL124 hPa
Freezing Lvl16,824 ft