Perry County, Illinois, United States

Last updated: 1:25 PM CDT  ·  Refresh
34°C
Feels like 44°
Partly Cloudy
▲ 36°  /  ▼ 23°
Wind
4 mph WSW
Humidity
65%
Dew Point
27°
Pressure
29.45 inHg
Visibility
10 mi
UV Index
9.3
Cloud Cover
32%
Sunrise
5:55 AM
Sunset
8:12 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Perry County is currently partly cloudy at 34°C. Precipitation is likely — peak probability 66% around 10 PM. Atmospheric instability is elevated (CAPE up to 4303 J/kg) — isolated convective development possible. Sunrise: 5:55AM · Sunset: 8:12PM.

Alerts

No active alerts for this location.
46 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
34°
23%
2 PM
35°
39%
3 PM
36°
44%
4 PM
36°
43%
5 PM
36°
32%
6 PM
36°
37%
7 PM
34°
47%
8 PM
33°
57%
9 PM
30°
54%
10 PM
29°
65%
11 PM
28°
52%
12 AM
27°
33%
1 AM
26°
11%
2 AM
26°
11%
3 AM
25°
11%
4 AM
24°
11%
5 AM
23°
12%
6 AM
23°
3%
7 AM
24°
9%
8 AM
26°
23%
9 AM
28°
23%
10 AM
29°
24%
11 AM
31°
24%
12 PM
32°
29%
7-Day Forecast
Today
36° 23°
Mostly Clear with a 65% chance of rain.
Mon
38° 23°
Mostly Clear with a 33% chance of rain.
Tue
35° 22°
Mostly Clear with a 36% chance of rain.
Wed
31° 19°
Clear with a 62% chance of rain.
Thu
31° 18°
Clear with a 35% chance of rain.
Fri
29° 19°
Rain, 90% chance.
Sat
30° 18°
Drizzle, 81% chance.
TimeTempConditionsPrecipWindHumidity
Now 34° Partly Cloudy 23% 4 mph WSW 65%
2 PM 35° Partly Cloudy 39% 6 mph WSW 64%
3 PM 36° Mostly Clear 44% 6 mph WSW 62%
4 PM 36° Clear 43% 6 mph WSW 62%
5 PM 36° Clear 32% 6 mph WSW 64%
6 PM 36° Mostly Clear 37% 4 mph SW 67%
7 PM 34° Mostly Clear 47% 4 mph SSW 70%
8 PM 33° Mostly Clear 57% 4 mph SW 74%
9 PM 30° Partly Cloudy 54% 4 mph SW 77%
10 PM 29° Rain 65% 4 mph S 80%
11 PM 28° Mostly Cloudy 52% 3 mph SSE 83%
12 AM 27° Mostly Cloudy 33% 4 mph ESE 86%
1 AM 26° Mostly Cloudy 11% 6 mph E 89%
2 AM 26° Partly Cloudy 11% 6 mph ESE 91%
3 AM 25° Partly Cloudy 11% 5 mph SE 92%
4 AM 24° Partly Cloudy 11% 6 mph SSE 93%
5 AM 23° Partly Cloudy 12% 6 mph SSE 92%
6 AM 23° Partly Cloudy 3% 6 mph S 91%
7 AM 24° Mostly Clear 9% 6 mph S 88%
8 AM 26° Mostly Clear 23% 6 mph S 83%
9 AM 28° Mostly Clear 23% 6 mph S 79%
10 AM 29° Mostly Clear 24% 6 mph SSW 75%
11 AM 31° Partly Cloudy 24% 5 mph SSW 70%
12 PM 32° Partly Cloudy 29% 4 mph SW 65%
15-Day Forecast
Today
7/26
Mostly Clear
65%
23°
36°
Mon
7/27
Mostly Clear
33%
23°
38°
Tue
7/28
Mostly Clear
36%
22°
35°
Wed
7/29
Clear
62%
19°
31°
Thu
7/30
Clear
35%
18°
31°
Fri
7/31
Rain
90%
19°
29°
Sat
8/1
Drizzle
81%
18°
30°
Sun
8/2
Drizzle
60%
19°
30°
Mon
8/3
Drizzle
60%
19°
32°
Tue
8/4
Drizzle
60%
21°
33°
Wed
8/5
Drizzle
60%
21°
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°
46
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
46 AQI 8.4 µg/m³
O3
Ground-level ozone
45 AQI 49 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Mon 46 Good 45 46
Tue 52 Moderate 36 52
Wed 40 Good 40 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
SBCAPE6039 J/kg
MLCAPE4775 J/kg
MUCAPE6039 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index-10.7
Kinematics
0–6 km Shear24 kt
0–1 km Shear4 kt
Eff. Shear29 kt
0–1 km SRH-10
0–3 km SRH-40
Eff. SRH-40
Storm Motion276° @ 20 kt
0–1 km EHI-0.4
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index39.3
Thermo & Levels
PWAT2.32 in
0–3 km LR7.1 °C/km
700–500 LR6.5 °C/km
Total Totals51.5
LCL898 hPa
LFC997 hPa
EL123 hPa
Freezing Lvl16,375 ft