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

Hamilton County, Illinois, United States

Last updated: 12:13 PM CDT  ·  Refresh
31°C
Feels like 38°
Partly Cloudy
▲ 35°  /  ▼ 22°
Wind
5 mph SSW
Humidity
75%
Dew Point
26°
Pressure
29.48 inHg
Visibility
10 mi
UV Index
8.2
Cloud Cover
57%
Sunrise
5:52 AM
Sunset
8:08 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Hamilton County is currently partly cloudy at 30°C. Precipitation is likely — peak probability 56% around 10 PM. Atmospheric instability is elevated (CAPE up to 4371 J/kg) — isolated convective development possible. Sunrise: 5:52AM · Sunset: 8:08PM.

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
54 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
31°
9%
1 PM
33°
18%
2 PM
34°
31%
3 PM
34°
36%
4 PM
34°
35%
5 PM
35°
22%
6 PM
34°
26%
7 PM
33°
40%
8 PM
32°
46%
9 PM
29°
51%
10 PM
29°
55%
11 PM
27°
55%
12 AM
26°
46%
1 AM
24°
37%
2 AM
24°
37%
3 AM
23°
36%
4 AM
23°
19%
5 AM
22°
20%
6 AM
22°
12%
7 AM
23°
23%
8 AM
24°
23%
9 AM
28°
24%
10 AM
29°
21%
11 AM
31°
24%
7-Day Forecast
Today
35° 22°
Partly Cloudy with a 51% chance of rain.
Mon
37° 22°
Partly Cloudy with a 46% chance of rain.
Tue
34° 21°
Mostly Clear with a 42% chance of rain.
Wed
30° 18°
Clear with a 42% chance of rain.
Thu
31° 17°
Clear.
Fri
29° 19°
Clear with a 35% chance of rain.
Sat
30° 18°
Clear with a 35% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 31° Partly Cloudy 9% 5 mph SSW 75%
1 PM 33° Mostly Cloudy 18% 6 mph SW 69%
2 PM 34° Partly Cloudy 31% 7 mph SW 66%
3 PM 34° Mostly Cloudy 36% 8 mph WSW 64%
4 PM 34° Partly Cloudy 35% 8 mph WSW 64%
5 PM 35° Partly Cloudy 22% 7 mph WSW 66%
6 PM 34° Partly Cloudy 26% 6 mph WSW 70%
7 PM 33° Partly Cloudy 40% 4 mph SW 75%
8 PM 32° Partly Cloudy 46% 4 mph SW 79%
9 PM 29° Mostly Cloudy 51% 5 mph SSW 82%
10 PM 29° Overcast 55% 5 mph SSW 85%
11 PM 27° Overcast 55% 5 mph SSE 88%
12 AM 26° Rain 46% 6 mph SE 92%
1 AM 24° Rain 37% 8 mph SE 96%
2 AM 24° Rain 37% 6 mph SE 95%
3 AM 23° Partly Cloudy 36% 5 mph SSE 94%
4 AM 23° Partly Cloudy 19% 6 mph S 94%
5 AM 22° Partly Cloudy 20% 5 mph S 93%
6 AM 22° Partly Cloudy 12% 4 mph S 92%
7 AM 23° Partly Cloudy 23% 5 mph S 91%
8 AM 24° Partly Cloudy 23% 6 mph S 86%
9 AM 28° Partly Cloudy 24% 6 mph S 82%
10 AM 29° Partly Cloudy 21% 6 mph S 78%
11 AM 31° Partly Cloudy 24% 7 mph S 74%
15-Day Forecast
Today
7/26
Partly Cloudy
51%
22°
35°
Mon
7/27
Partly Cloudy
46%
22°
37°
Tue
7/28
Mostly Clear
42%
21°
34°
Wed
7/29
Clear
42%
18°
30°
Thu
7/30
Clear
9%
17°
31°
Fri
7/31
Clear
35%
19°
29°
Sat
8/1
Clear
35%
18°
30°
Sun
8/2
Drizzle
60%
19°
30°
Mon
8/3
Drizzle
60%
19°
31°
Tue
8/4
Drizzle
60%
21°
33°
Wed
8/5
Drizzle
60%
22°
34°
Thu
8/6
Drizzle
60%
21°
32°
Fri
8/7
Drizzle
60%
20°
32°
Sat
8/8
Drizzle
60%
20°
33°
Sun
8/9
Drizzle
60%
21°
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 10.8 µg/m³
O3
Ground-level ozone
40 AQI 44 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Mon 54 Moderate 40 54
Tue 53 Moderate 38 53
Wed 45 Good 44 45
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
SBCAPE4055 J/kg
MLCAPE2901 J/kg
MUCAPE4055 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index-7.2
Kinematics
0–6 km Shear23 kt
0–1 km Shear8 kt
Eff. Shear28 kt
0–1 km SRH-15
0–3 km SRH-56
Eff. SRH-56
Storm Motion292° @ 21 kt
0–1 km EHI-0.4
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index33.2
Thermo & Levels
PWAT1.84 in
0–3 km LR6.1 °C/km
700–500 LR5.9 °C/km
Total Totals46.8
LCL931 hPa
LFC998 hPa
EL142 hPa
Freezing Lvl16,752 ft