Heat Advisory — Jefferson, IL, Wayne, IL, Edwards, IL, Wabash, 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

Cape Girardeau, Missouri

Last updated: 8:10 AM CDT  ·  Refresh
25°C
Feels like 28°
Mostly Clear
▲ 34°  /  ▼ 23°
Wind
7 mph SSW
Humidity
84%
Dew Point
23°
Pressure
29.63 inHg
Visibility
9 mi
UV Index
5.1
Cloud Cover
30%
Sunrise
6:10 AM
Sunset
7:55 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Cape Girardeau is currently mostly clear at 25°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 3227 J/kg) — isolated convective development possible. Sunrise: 6:10AM · Sunset: 7:55PM.

Alerts

Heat Advisory
Jefferson, IL, Wayne, IL, Edwards, IL, Wabash, 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
41 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
25°
11%
9 AM
26°
14%
10 AM
27°
7%
11 AM
29°
7%
12 PM
30°
7%
1 PM
33°
3%
2 PM
33°
3%
3 PM
33°
3%
4 PM
33°
3%
5 PM
34°
3%
6 PM
33°
3%
7 PM
32°
3%
8 PM
31°
3%
9 PM
28°
3%
10 PM
28°
3%
11 PM
27°
3%
12 AM
27°
3%
1 AM
26°
3%
2 AM
26°
3%
3 AM
25°
3%
4 AM
25°
5%
5 AM
24°
5%
6 AM
24°
5%
7 AM
24°
5%
7-Day Forecast
Today
34° 23°
Partly Cloudy.
Tue
36° 24°
Clear.
Wed
38° 24°
Partly Cloudy with a 23% chance of rain.
Thu
37° 24°
Clear with a 58% chance of rain.
Fri
35° 24°
Mostly Clear with a 38% chance of rain.
Sat
38° 23°
Clear.
Sun
39° 26°
Mostly Clear.
TimeTempConditionsPrecipWindHumidity
Now 25° Mostly Clear 11% 7 mph SSW 84%
9 AM 26° Partly Cloudy 14% 10 mph SW 76%
10 AM 27° Mostly Clear 7% 10 mph SW 70%
11 AM 29° Mostly Clear 7% 11 mph SW 66%
12 PM 30° Partly Cloudy 7% 11 mph SW 60%
1 PM 33° Partly Cloudy 3% 12 mph SW 56%
2 PM 33° Partly Cloudy 3% 12 mph SW 54%
3 PM 33° Mostly Cloudy 3% 12 mph SSW 52%
4 PM 33° Partly Cloudy 3% 12 mph SSW 52%
5 PM 34° Partly Cloudy 3% 10 mph SSW 56%
6 PM 33° Partly Cloudy 3% 9 mph SSW 61%
7 PM 32° Partly Cloudy 3% 8 mph SSW 66%
8 PM 31° Partly Cloudy 3% 7 mph S 69%
9 PM 28° Partly Cloudy 3% 7 mph SSW 72%
10 PM 28° Mostly Clear 3% 7 mph SSW 74%
11 PM 27° Partly Cloudy 3% 7 mph SSW 75%
12 AM 27° Partly Cloudy 3% 7 mph SSW 76%
1 AM 26° Partly Cloudy 3% 7 mph SSW 78%
2 AM 26° Partly Cloudy 3% 7 mph SSW 80%
3 AM 25° Partly Cloudy 3% 7 mph SSW 81%
4 AM 25° Partly Cloudy 5% 7 mph SSW 83%
5 AM 24° Mostly Clear 5% 7 mph SSW 84%
6 AM 24° Mostly Clear 5% 7 mph SSW 85%
7 AM 24° Clear 5% 8 mph SSW 86%
15-Day Forecast
Today
8/10
Partly Cloudy
11%
23°
34°
Tue
8/11
Clear
6%
24°
36°
Wed
8/12
Partly Cloudy
23%
24°
38°
Thu
8/13
Clear
58%
24°
37°
Fri
8/14
Mostly Clear
38%
24°
35°
Sat
8/15
Clear
15%
23°
38°
Sun
8/16
Mostly Clear
18%
26°
39°
Mon
8/17
Drizzle
47%
23°
35°
Tue
8/18
Drizzle
47%
21°
36°
Wed
8/19
Mostly Clear
44%
22°
35°
Thu
8/20
Drizzle
60%
23°
37°
Fri
8/21
Drizzle
60%
22°
36°
Sat
8/22
Drizzle
60%
22°
36°
Sun
8/23
Clear
60%
22°
36°
Mon
8/24
Clear
60%
21°
34°
41
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
41 AQI 7.4 µg/m³
O3
Ground-level ozone
37 AQI 41 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Tue 41 Good 37 41
Wed 34 Good 34 19
Thu 31 Good 31 29
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 Mon Aug 10, 11:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE1755 J/kg
MLCAPE1575 J/kg
MUCAPE1920 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index-7.2
Kinematics
0–6 km Shear7 kt
0–1 km Shear19 kt
Eff. Shear5 kt
0–1 km SRH88
0–3 km SRH109
Eff. SRH109
Storm Motion70° @ 6 kt
0–1 km EHI1.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index26.1
Thermo & Levels
PWAT1.57 in
0–3 km LR4.2 °C/km
700–500 LR8.1 °C/km
Total Totals52.5
LCL969 hPa
LFC1003 hPa
EL190 hPa
Freezing Lvl14,724 ft