Excessive Heat Warning — Perry, MO, Bollinger, MO, Cape Girardeau, MO, Wayne, MO, Carter, MO, Ripley, MO, Butler, MO, Stoddard, MO, Scott, MO, Mississippi, MO, New Madrid, MO, 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 7:00 PM Heat Advisory — Perry, MO, Bollinger, MO, Cape Girardeau, MO, Wayne, MO, Carter, MO, Ripley, MO, Butler, MO, Stoddard, MO, Scott, MO, Mississippi, MO, New Madrid, MO, 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 7:00 PM 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

Cape Girardeau, Missouri

Last updated: 12:16 PM CDT  ·  Refresh
33°C
Feels like 43°
Mostly Clear
▲ 37°  /  ▼ 24°
Wind
5 mph SW
Humidity
68%
Dew Point
27°
Pressure
29.53 inHg
Visibility
10 mi
UV Index
9.5
Cloud Cover
17%
Sunrise
5:57 AM
Sunset
8:10 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Cape Girardeau is currently mostly clear at 33°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 4341 J/kg) — isolated convective development possible. Sunrise: 5:57AM · Sunset: 8:10PM.

Alerts

Excessive Heat Warning
Perry, MO, Bollinger, MO, Cape Girardeau, MO, Wayne, MO, Carter, MO, Ripley, MO, Butler, MO, Stoddard, MO, Scott, MO, Mississippi, MO, New Madrid, MO, 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
Expires 7:00 PM
Heat Advisory
Perry, MO, Bollinger, MO, Cape Girardeau, MO, Wayne, MO, Carter, MO, Ripley, MO, Butler, MO, Stoddard, MO, Scott, MO, Mississippi, MO, New Madrid, MO, 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
Expires 7:00 PM
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
54 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
33°
14%
1 PM
34°
18%
2 PM
34°
23%
3 PM
35°
25%
4 PM
36°
24%
5 PM
36°
24%
6 PM
35°
13%
7 PM
34°
18%
8 PM
32°
18%
9 PM
29°
10%
10 PM
29°
10%
11 PM
29°
11%
12 AM
28°
5%
1 AM
28°
5%
2 AM
27°
5%
3 AM
27°
5%
4 AM
26°
3%
5 AM
24°
3%
6 AM
24°
3%
7 AM
24°
3%
8 AM
26°
3%
9 AM
28°
3%
10 AM
29°
3%
11 AM
30°
3%
7-Day Forecast
Today
37° 24°
Mostly Clear with a 25% chance of rain.
Mon
37° 24°
Mostly Clear with a 23% chance of rain.
Tue
38° 24°
Clear with a 44% chance of rain.
Wed
31° 21°
Mostly Clear with a 57% chance of rain.
Thu
32° 19°
Clear with a 39% chance of rain.
Fri
30° 20°
Drizzle, 60% chance.
Sat
31° 18°
Rain, 81% chance.
TimeTempConditionsPrecipWindHumidity
Now 33° Mostly Clear 14% 5 mph SW 68%
1 PM 34° Mostly Clear 18% 5 mph SW 64%
2 PM 34° Partly Cloudy 23% 5 mph WSW 64%
3 PM 35° Mostly Clear 25% 6 mph SW 62%
4 PM 36° Clear 24% 6 mph SW 60%
5 PM 36° Clear 24% 7 mph SW 62%
6 PM 35° Clear 13% 7 mph SW 66%
7 PM 34° Clear 18% 6 mph SW 70%
8 PM 32° Mostly Clear 18% 6 mph SW 72%
9 PM 29° Partly Cloudy 10% 5 mph SW 74%
10 PM 29° Mostly Cloudy 10% 4 mph SW 75%
11 PM 29° Mostly Cloudy 11% 3 mph SSW 78%
12 AM 28° Mostly Cloudy 5% 4 mph S 80%
1 AM 28° Mostly Cloudy 5% 4 mph S 82%
2 AM 27° Partly Cloudy 5% 4 mph SSE 84%
3 AM 27° Partly Cloudy 5% 5 mph SSE 86%
4 AM 26° Partly Cloudy 3% 5 mph SSE 87%
5 AM 24° Partly Cloudy 3% 5 mph S 87%
6 AM 24° Mostly Clear 3% 5 mph S 86%
7 AM 24° Mostly Clear 3% 5 mph S 84%
8 AM 26° Mostly Clear 3% 5 mph SSW 79%
9 AM 28° Mostly Clear 3% 6 mph SW 75%
10 AM 29° Mostly Clear 3% 6 mph SW 72%
11 AM 30° Mostly Clear 3% 5 mph SW 68%
15-Day Forecast
Today
7/26
Mostly Clear
25%
24°
37°
Mon
7/27
Mostly Clear
23%
24°
37°
Tue
7/28
Clear
44%
24°
38°
Wed
7/29
Mostly Clear
57%
21°
31°
Thu
7/30
Clear
39%
19°
32°
Fri
7/31
Drizzle
60%
20°
30°
Sat
8/1
Rain
81%
18°
31°
Sun
8/2
Drizzle
60%
19°
31°
Mon
8/3
Drizzle
60%
19°
32°
Tue
8/4
Drizzle
60%
22°
34°
Wed
8/5
Drizzle
60%
22°
34°
Thu
8/6
Drizzle
60%
22°
33°
Fri
8/7
Drizzle
60%
22°
32°
Sat
8/8
Drizzle
60%
21°
33°
Sun
8/9
Drizzle
60%
22°
33°
54
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
54 AQI 10.9 µg/m³
O3
Ground-level ozone
31 AQI 34 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Mon 54 Moderate 31 54
Tue 54 Moderate 29 54
Wed 41 Good 41 37
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
SBCAPE5740 J/kg
MLCAPE4270 J/kg
MUCAPE5740 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index-9.4
Kinematics
0–6 km Shear20 kt
0–1 km Shear6 kt
Eff. Shear24 kt
0–1 km SRH-5
0–3 km SRH-42
Eff. SRH-42
Storm Motion294° @ 19 kt
0–1 km EHI-0.2
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index36.5
Thermo & Levels
PWAT1.95 in
0–3 km LR6.9 °C/km
700–500 LR5.8 °C/km
Total Totals47.9
LCL916 hPa
LFC1000 hPa
EL121 hPa
Freezing Lvl16,995 ft