Extreme Heat Warning — Perry, IL 8:00 PM

Perry County, Illinois, United States

Last updated: 5:11 AM CDT  ·  Refresh
24°C
Feels like 27°
Mostly Clear
▲ 35°  /  ▼ 24°
Wind
6 mph SSW
Humidity
83%
Dew Point
22°
Pressure
29.53 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
15%
Sunrise
6:09 AM
Sunset
7:55 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Perry County is currently mostly clear at 25°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2987 J/kg) — isolated convective development possible. Sunrise: 6:09AM · Sunset: 7:55PM.

Alerts

Extreme Heat Warning
Perry, IL
Expires 8:00 PM
41 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
24°
16%
6 AM
23°
33%
7 AM
24°
29%
8 AM
26°
29%
9 AM
28°
29%
10 AM
29°
20%
11 AM
31°
20%
12 PM
32°
14%
1 PM
33°
5%
2 PM
34°
10%
3 PM
34°
13%
4 PM
34°
3%
5 PM
35°
3%
6 PM
34°
3%
7 PM
32°
3%
8 PM
31°
18%
9 PM
30°
18%
10 PM
29°
22%
11 PM
29°
22%
12 AM
27°
23%
1 AM
27°
23%
2 AM
27°
24%
3 AM
27°
24%
4 AM
26°
26%
7-Day Forecast
Today
35° 24°
Mostly Clear with a 29% chance of rain.
Wed
36° 24°
Partly Cloudy with a 71% chance of rain.
Thu
36° 24°
Partly Cloudy with a 28% chance of rain.
Fri
32° 23°
Clear with a 27% chance of rain.
Sat
35° 23°
Clear.
Sun
36° 23°
Mostly Clear with a 28% chance of rain.
Mon
31° 21°
Mostly Cloudy.
TimeTempConditionsPrecipWindHumidity
Now 24° Mostly Clear 16% 6 mph SSW 83%
6 AM 23° Clear 33% 8 mph SSW 81%
7 AM 24° Clear 29% 8 mph SSW 82%
8 AM 26° Mostly Clear 29% 10 mph SW 76%
9 AM 28° Mostly Clear 29% 10 mph SW 71%
10 AM 29° Mostly Clear 20% 11 mph SW 66%
11 AM 31° Partly Cloudy 20% 11 mph SW 60%
12 PM 32° Partly Cloudy 14% 12 mph SW 55%
1 PM 33° Partly Cloudy 5% 12 mph SW 51%
2 PM 34° Mostly Clear 10% 12 mph SW 50%
3 PM 34° Mostly Clear 13% 11 mph SW 49%
4 PM 34° Mostly Clear 3% 11 mph SW 49%
5 PM 35° Mostly Clear 3% 10 mph SW 53%
6 PM 34° Mostly Clear 3% 9 mph SSW 58%
7 PM 32° Mostly Clear 3% 7 mph SSW 64%
8 PM 31° Mostly Clear 18% 8 mph SSW 66%
9 PM 30° Mostly Clear 18% 8 mph SSW 67%
10 PM 29° Mostly Clear 22% 9 mph SSW 69%
11 PM 29° Mostly Clear 22% 8 mph SSW 72%
12 AM 27° Mostly Clear 23% 8 mph SSW 74%
1 AM 27° Mostly Clear 23% 8 mph SSW 76%
2 AM 27° Mostly Clear 24% 7 mph SSW 77%
3 AM 27° Mostly Clear 24% 7 mph SSW 77%
4 AM 26° Mostly Clear 26% 7 mph SSW 78%
15-Day Forecast
Today
8/11
Mostly Clear
29%
24°
35°
Wed
8/12
Partly Cloudy
71%
24°
36°
Thu
8/13
Partly Cloudy
28%
24°
36°
Fri
8/14
Clear
27%
23°
32°
Sat
8/15
Clear
15%
23°
35°
Sun
8/16
Mostly Clear
28%
23°
36°
Mon
8/17
Mostly Cloudy
18%
21°
31°
Tue
8/18
Drizzle
53%
21°
33°
Wed
8/19
Mostly Clear
35%
23°
36°
Thu
8/20
Clear
35%
23°
36°
Fri
8/21
Clear
60%
20°
36°
Sat
8/22
Drizzle
60%
21°
33°
Sun
8/23
Drizzle
60%
21°
32°
Mon
8/24
Drizzle
60%
20°
31°
Tue
8/25
Drizzle
60%
19°
31°
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 7.3 µg/m³
O3
Ground-level ozone
32 AQI 35 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 41 Good 32 41
Wed 31 Good 31 20
Thu 43 Good 43 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 Tue Aug 11, 08:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE1389 J/kg
MLCAPE1349 J/kg
MUCAPE2075 J/kg
SBCIN-497 J/kg
MLCIN0 J/kg
Lifted Index-5.1
Kinematics
0–6 km Shear13 kt
0–1 km Shear20 kt
Eff. Shear—
0–1 km SRH132
0–3 km SRH96
Eff. SRH—
Storm Motion325° @ 14 kt
0–1 km EHI1.2
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index24.5
Thermo & Levels
PWAT1.59 in
0–3 km LR3.8 °C/km
700–500 LR7.9 °C/km
Total Totals49.6
LCL964 hPa
LFC646 hPa
EL190 hPa
Freezing Lvl14,692 ft