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: 1:39 PM CDT  ·  Refresh
34°C
Feels like 45°
Mostly Clear
▲ 37°  /  ▼ 23°
Wind
5 mph SW
Humidity
64%
Dew Point
27°
Pressure
29.51 inHg
Visibility
10 mi
UV Index
9.5
Cloud Cover
23%
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 34°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 4437 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
52 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
34°
21%
2 PM
35°
26%
3 PM
36°
25%
4 PM
36°
25%
5 PM
36°
24%
6 PM
34°
24%
7 PM
33°
10%
8 PM
32°
10%
9 PM
29°
10%
10 PM
28°
10%
11 PM
28°
10%
12 AM
28°
5%
1 AM
28°
5%
2 AM
27°
5%
3 AM
26°
5%
4 AM
26°
3%
5 AM
24°
3%
6 AM
23°
3%
7 AM
24°
3%
8 AM
27°
3%
9 AM
29°
3%
10 AM
30°
3%
11 AM
31°
3%
12 PM
32°
3%
7-Day Forecast
Today
37° 23°
Mostly Clear with a 25% chance of rain.
Mon
37° 23°
Mostly Clear with a 23% chance of rain.
Tue
38° 24°
Mostly Clear with a 44% chance of rain.
Wed
31° 21°
Mostly Clear with a 57% chance of rain.
Thu
33° 19°
Clear.
Fri
30° 20°
Rain, 81% chance.
Sat
31° 18°
Rain, 81% chance.
TimeTempConditionsPrecipWindHumidity
Now 34° Mostly Clear 21% 5 mph SW 64%
2 PM 35° Mostly Clear 26% 5 mph SW 62%
3 PM 36° Clear 25% 6 mph SW 60%
4 PM 36° Clear 25% 6 mph SW 61%
5 PM 36° Clear 24% 7 mph SW 65%
6 PM 34° Clear 24% 7 mph SW 69%
7 PM 33° Mostly Clear 10% 6 mph SW 71%
8 PM 32° Partly Cloudy 10% 6 mph SW 73%
9 PM 29° Partly Cloudy 10% 5 mph SW 74%
10 PM 28° Partly Cloudy 10% 4 mph SW 76%
11 PM 28° Mostly Cloudy 10% 4 mph SSW 79%
12 AM 28° Mostly Cloudy 5% 4 mph S 81%
1 AM 28° Partly Cloudy 5% 4 mph S 83%
2 AM 27° Partly Cloudy 5% 4 mph ESE 85%
3 AM 26° Partly Cloudy 5% 5 mph SE 87%
4 AM 26° Partly Cloudy 3% 4 mph SSE 87%
5 AM 24° Mostly Clear 3% 5 mph SSE 87%
6 AM 23° Mostly Clear 3% 5 mph SSE 88%
7 AM 24° Mostly Clear 3% 5 mph S 84%
8 AM 27° Mostly Clear 3% 5 mph SSW 78%
9 AM 29° Mostly Clear 3% 5 mph SSW 74%
10 AM 30° Mostly Clear 3% 5 mph SW 70%
11 AM 31° Mostly Clear 3% 5 mph SW 67%
12 PM 32° Mostly Clear 3% 5 mph SW 63%
15-Day Forecast
Today
7/26
Mostly Clear
25%
23°
37°
Mon
7/27
Mostly Clear
23%
23°
37°
Tue
7/28
Mostly Clear
44%
24°
38°
Wed
7/29
Mostly Clear
57%
21°
31°
Thu
7/30
Clear
19%
19°
33°
Fri
7/31
Rain
81%
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°
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 9.9 µg/m³
O3
Ground-level ozone
33 AQI 36 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Mon 52 Moderate 33 52
Tue 52 Moderate 31 52
Wed 44 Good 44 38
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, 17:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE6152 J/kg
MLCAPE4773 J/kg
MUCAPE6152 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index-10.0
Kinematics
0–6 km Shear19 kt
0–1 km Shear3 kt
Eff. Shear24 kt
0–1 km SRH-3
0–3 km SRH-39
Eff. SRH-39
Storm Motion288° @ 18 kt
0–1 km EHI-0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index39.3
Thermo & Levels
PWAT2.10 in
0–3 km LR7.4 °C/km
700–500 LR5.8 °C/km
Total Totals48.7
LCL898 hPa
LFC999 hPa
EL120 hPa
Freezing Lvl16,942 ft