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

Calloway County, Kentucky, United States

Last updated: 12:13 PM CDT  ·  Refresh
30°C
Feels like 37°
Mostly Cloudy
▲ 34°  /  ▼ 22°
Wind
3 mph SW
Humidity
75%
Dew Point
26°
Pressure
29.43 inHg
Visibility
5 mi
UV Index
7.5
Cloud Cover
67%
Sunrise
5:54 AM
Sunset
8:04 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Calloway County is currently mostly cloudy at 30°C. Precipitation is likely — peak probability 51% around 12 AM. Atmospheric instability is elevated (CAPE up to 4416 J/kg) — isolated convective development possible. Sunrise: 5:54AM · Sunset: 8:04PM.

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
42 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
30°
5%
1 PM
33°
18%
2 PM
34°
18%
3 PM
34°
22%
4 PM
34°
27%
5 PM
34°
32%
6 PM
34°
34%
7 PM
33°
30%
8 PM
32°
38%
9 PM
29°
44%
10 PM
29°
40%
11 PM
28°
46%
12 AM
28°
50%
1 AM
27°
41%
2 AM
27°
30%
3 AM
25°
30%
4 AM
24°
20%
5 AM
23°
20%
6 AM
23°
16%
7 AM
24°
15%
8 AM
26°
15%
9 AM
26°
15%
10 AM
27°
27%
11 AM
29°
30%
7-Day Forecast
Today
34° 22°
Partly Cloudy with a 44% chance of rain.
Mon
36° 22°
Mostly Clear with a 50% chance of rain.
Tue
37° 23°
Mostly Clear with a 29% chance of rain.
Wed
31° 22°
Mostly Clear with a 69% chance of rain.
Thu
31° 18°
Clear.
Fri
29° 20°
Drizzle, 81% chance.
Sat
30° 19°
Drizzle, 60% chance.
TimeTempConditionsPrecipWindHumidity
Now 30° Mostly Cloudy 5% 3 mph SW 75%
1 PM 33° Mostly Cloudy 18% 4 mph SW 70%
2 PM 34° Mostly Cloudy 18% 5 mph WSW 68%
3 PM 34° Mostly Cloudy 22% 5 mph WSW 68%
4 PM 34° Partly Cloudy 27% 5 mph WSW 67%
5 PM 34° Mostly Clear 32% 6 mph WSW 71%
6 PM 34° Mostly Clear 34% 6 mph WSW 75%
7 PM 33° Mostly Clear 30% 5 mph SW 79%
8 PM 32° Mostly Clear 38% 4 mph SSW 82%
9 PM 29° Partly Cloudy 44% 5 mph SSW 84%
10 PM 29° Partly Cloudy 40% 4 mph SSW 85%
11 PM 28° Partly Cloudy 46% 3 mph S 84%
12 AM 28° Rain 50% 5 mph NE 84%
1 AM 27° Rain 41% 8 mph NNE 83%
2 AM 27° Mostly Cloudy 30% 6 mph ENE 83%
3 AM 25° Mostly Cloudy 30% 3 mph S 84%
4 AM 24° Mostly Cloudy 20% 4 mph S 85%
5 AM 23° Partly Cloudy 20% 5 mph S 87%
6 AM 23° Partly Cloudy 16% 6 mph S 90%
7 AM 24° Partly Cloudy 15% 7 mph S 90%
8 AM 26° Mostly Clear 15% 7 mph S 87%
9 AM 26° Mostly Clear 15% 6 mph S 84%
10 AM 27° Mostly Clear 27% 6 mph S 80%
11 AM 29° Clear 30% 5 mph S 78%
15-Day Forecast
Today
7/26
Partly Cloudy
44%
22°
34°
Mon
7/27
Mostly Clear
50%
22°
36°
Tue
7/28
Mostly Clear
29%
23°
37°
Wed
7/29
Mostly Clear
69%
22°
31°
Thu
7/30
Clear
19%
18°
31°
Fri
7/31
Drizzle
81%
20°
29°
Sat
8/1
Drizzle
60%
19°
30°
Sun
8/2
Drizzle
60%
20°
30°
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°
33°
Fri
8/7
Drizzle
60%
21°
32°
Sat
8/8
Drizzle
60%
21°
32°
Sun
8/9
Drizzle
60%
22°
32°
42
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
42 AQI 7.7 µg/m³
O3
Ground-level ozone
29 AQI 32 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Mon 42 Good 29 42
Tue 54 Moderate 34 54
Wed 40 Good 35 40
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, 15:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE4568 J/kg
MLCAPE2718 J/kg
MUCAPE4568 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index-6.8
Kinematics
0–6 km Shear21 kt
0–1 km Shear8 kt
Eff. Shear28 kt
0–1 km SRH-10
0–3 km SRH-30
Eff. SRH-30
Storm Motion299° @ 18 kt
0–1 km EHI-0.3
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index22.0
Thermo & Levels
PWAT1.67 in
0–3 km LR6.3 °C/km
700–500 LR5.3 °C/km
Total Totals44.7
LCL941 hPa
LFC997 hPa
EL128 hPa
Freezing Lvl16,883 ft