Excessive Heat Warning — Jefferson, IL, Wayne, IL, Edwards, IL, Wabash, IL, Perry, IL, Franklin, IL, Hamilton, IL, White, IL, Jackson, IL, Williamson, IL, Saline, IL, Gallatin, IL, Union, IL, Johnson, IL, Pope, IL, Hardin, IL, Alexander, IL, Pulaski, IL, Massac, IL, Gibson, IN, Pike, IN, Posey, IN, Vanderburgh, IN, Warrick, IN, Spencer, IN, Fulton, KY, Hickman, KY, Carlisle, KY, Ballard, KY, McCracken, KY, Graves, KY, Livingston, KY, Marshall, KY, Calloway, KY, 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, Perry, MO, Bollinger, MO, Cape Girardeau, MO, Wayne, MO, Carter, MO, Ripley, MO, Butler, MO, Stoddard, MO, Scott, MO, Mississippi, MO, New Madrid, MO 8:00 PM

Wayne County, Illinois, United States

Last updated: 2:24 AM CDT  ·  Refresh
25°C
Feels like 27°
Clear
▲ 38°  /  ▼ 24°
Wind
4 mph SSW
Humidity
76%
Dew Point
21°
Pressure
29.48 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
4%
Sunrise
6:25 AM
Sunset
7:18 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Wayne County is currently clear at 25°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1805 J/kg) — isolated convective development possible. Sunrise: 6:25AM · Sunset: 7:18PM.

Alerts

Excessive Heat Warning
Jefferson, IL, Wayne, IL, Edwards, IL, Wabash, IL, Perry, IL, Franklin, IL, Hamilton, IL, White, IL, Jackson, IL, Williamson, IL, Saline, IL, Gallatin, IL, Union, IL, Johnson, IL, Pope, IL, Hardin, IL, Alexander, IL, Pulaski, IL, Massac, IL, Gibson, IN, Pike, IN, Posey, IN, Vanderburgh, IN, Warrick, IN, Spencer, IN, Fulton, KY, Hickman, KY, Carlisle, KY, Ballard, KY, McCracken, KY, Graves, KY, Livingston, KY, Marshall, KY, Calloway, KY, 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, 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 8:00 PM
54 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
25°
10%
3 AM
25°
4%
4 AM
25°
3%
5 AM
23°
3%
6 AM
23°
3%
7 AM
24°
3%
8 AM
27°
3%
9 AM
31°
3%
10 AM
33°
3%
11 AM
34°
3%
12 PM
35°
3%
1 PM
37°
3%
2 PM
37°
3%
3 PM
37°
3%
4 PM
37°
5%
5 PM
38°
5%
6 PM
37°
5%
7 PM
36°
5%
8 PM
35°
5%
9 PM
29°
5%
10 PM
29°
9%
11 PM
28°
9%
12 AM
28°
13%
1 AM
28°
13%
7-Day Forecast
Today
38° 24°
Mostly Clear.
Sat
40° 24°
Mostly Clear with a 55% chance of rain.
Sun
36° 17°
Partly Cloudy.
Mon
33° 12°
Partly Cloudy.
Tue
40° 17°
Clear.
Wed
42° 22°
Drizzle, 43% chance.
Thu
38° 18°
Clear with a 53% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 25° Clear 10% 4 mph SSW 76%
3 AM 25° Mostly Clear 4% 4 mph SSW 74%
4 AM 25° Mostly Clear 3% 4 mph SSW 75%
5 AM 23° Mostly Clear 3% 4 mph SSW 76%
6 AM 23° Clear 3% 4 mph SSW 78%
7 AM 24° Clear 3% 4 mph SSW 75%
8 AM 27° Clear 3% 4 mph SW 66%
9 AM 31° Clear 3% 5 mph WSW 57%
10 AM 33° Clear 3% 6 mph WSW 50%
11 AM 34° Clear 3% 5 mph WSW 45%
12 PM 35° Mostly Clear 3% 5 mph W 42%
1 PM 37° Mostly Clear 3% 5 mph WSW 40%
2 PM 37° Mostly Clear 3% 4 mph SW 40%
3 PM 37° Partly Cloudy 3% 5 mph SSW 40%
4 PM 37° Partly Cloudy 5% 5 mph S 41%
5 PM 38° Mostly Clear 5% 6 mph S 45%
6 PM 37° Mostly Clear 5% 6 mph SSE 49%
7 PM 36° Mostly Clear 5% 6 mph SSE 53%
8 PM 35° Mostly Clear 5% 6 mph S 57%
9 PM 29° Mostly Clear 5% 6 mph S 60%
10 PM 29° Mostly Clear 9% 6 mph S 63%
11 PM 28° Mostly Clear 9% 6 mph SSW 65%
12 AM 28° Mostly Clear 13% 6 mph SSW 67%
1 AM 28° Mostly Clear 13% 6 mph SSW 69%
15-Day Forecast
Today
9/4
Mostly Clear
10%
24°
38°
Sat
9/5
Mostly Clear
55%
24°
40°
Sun
9/6
Partly Cloudy
7%
17°
36°
Mon
9/7
Partly Cloudy
3%
12°
33°
Tue
9/8
Clear
3%
17°
40°
Wed
9/9
Drizzle
43%
22°
42°
Thu
9/10
Clear
53%
18°
38°
Fri
9/11
Drizzle
42%
15°
37°
Sat
9/12
Clear
44%
20°
37°
Sun
9/13
Drizzle
51%
16°
36°
Mon
9/14
Clear
60%
21°
38°
Tue
9/15
Drizzle
60%
21°
38°
Wed
9/16
Drizzle
60%
20°
37°
Thu
9/17
Clear
60%
19°
34°
Fri
9/18
Clear
25%
18°
34°
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 10.6 µg/m³
O3
Ground-level ozone
43 AQI 46 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 54 Moderate 43 54
Sat 53 Moderate 44 53
Sun 49 Good 44 49
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 Fri Sep 4, 06:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE158 J/kg
MLCAPE404 J/kg
MUCAPE673 J/kg
SBCIN-508 J/kg
MLCIN-205 J/kg
Lifted Index-0.7
Kinematics
0–6 km Shear10 kt
0–1 km Shear11 kt
Eff. Shear3 kt
0–1 km SRH11
0–3 km SRH16
Eff. SRH1
Storm Motion352° @ 8 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index38.8
Thermo & Levels
PWAT1.67 in
0–3 km LR5.2 °C/km
700–500 LR5.2 °C/km
Total Totals48.1
LCL944 hPa
LFC539 hPa
EL311 hPa
Freezing Lvl16,394 ft