Heat Advisory — Knox, IL, Stark, IL, Peoria, IL, Fulton, IL, Tazewell, IL, Schuyler, IL, Mason, IL, Logan, IL, De Witt, IL, Piatt, IL, Cass, IL, Menard, IL, Scott, IL, Morgan, IL, Sangamon, IL, Christian, IL, Macon, IL, Moultrie, IL, Douglas, IL, Coles, IL, Shelby, IL, Cumberland, IL, Clark, IL, Effingham, IL, Jasper, IL, Crawford, IL, Clay, IL, Richland, IL, Lawrence, IL, Marshall, IL, Woodford, IL, McLean, IL, Champaign, IL, Vermilion, IL, Edgar, IL 7:00 PM

Shelby County, Illinois, United States

Last updated: 11:46 PM CDT  ·  Refresh
26°C
Feels like 26°
Clear
▲ 33°  /  ▼ 21°
Wind
7 mph SSW
Humidity
66%
Dew Point
18°
Pressure
29.35 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
1%
Sunrise
6:22 AM
Sunset
7:27 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Shelby County is currently clear at 25°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1684 J/kg) — isolated convective development possible. Sunrise: 6:22AM · Sunset: 7:27PM.

Alerts

Heat Advisory
Knox, IL, Stark, IL, Peoria, IL, Fulton, IL, Tazewell, IL, Schuyler, IL, Mason, IL, Logan, IL, De Witt, IL, Piatt, IL, Cass, IL, Menard, IL, Scott, IL, Morgan, IL, Sangamon, IL, Christian, IL, Macon, IL, Moultrie, IL, Douglas, IL, Coles, IL, Shelby, IL, Cumberland, IL, Clark, IL, Effingham, IL, Jasper, IL, Crawford, IL, Clay, IL, Richland, IL, Lawrence, IL, Marshall, IL, Woodford, IL, McLean, IL, Champaign, IL, Vermilion, IL, Edgar, IL
Expires 7:00 PM
56 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
26°
3%
12 AM
25°
3%
1 AM
24°
3%
2 AM
24°
3%
3 AM
23°
3%
4 AM
23°
3%
5 AM
21°
3%
6 AM
21°
3%
7 AM
23°
3%
8 AM
27°
3%
9 AM
29°
3%
10 AM
32°
3%
11 AM
33°
3%
12 PM
34°
3%
1 PM
37°
3%
2 PM
37°
3%
3 PM
37°
3%
4 PM
37°
3%
5 PM
37°
3%
6 PM
35°
3%
7 PM
34°
3%
8 PM
33°
3%
9 PM
31°
3%
10 PM
30°
3%
7-Day Forecast
Tonight
33° 21°
Clear.
Tue
37° 21°
Clear.
Wed
39° 22°
Clear.
Thu
39° 22°
Mostly Clear with a 38% chance of rain.
Fri
40° 22°
Clear with a 39% chance of rain.
Sat
40° 23°
Drizzle, 60% chance.
Sun
38° 21°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 26° Clear 3% 7 mph SSW 66%
12 AM 25° Clear 3% 7 mph SSW 63%
1 AM 24° Clear 3% 8 mph SSW 67%
2 AM 24° Clear 3% 7 mph SSW 71%
3 AM 23° Clear 3% 7 mph SSW 74%
4 AM 23° Clear 3% 7 mph SSW 77%
5 AM 21° Clear 3% 7 mph SSW 78%
6 AM 21° Clear 3% 7 mph SSW 78%
7 AM 23° Clear 3% 8 mph SW 71%
8 AM 27° Clear 3% 9 mph SW 61%
9 AM 29° Clear 3% 10 mph WSW 52%
10 AM 32° Clear 3% 10 mph WSW 48%
11 AM 33° Clear 3% 10 mph WSW 45%
12 PM 34° Clear 3% 9 mph WSW 42%
1 PM 37° Clear 3% 8 mph WSW 40%
2 PM 37° Clear 3% 7 mph WSW 39%
3 PM 37° Clear 3% 7 mph WSW 38%
4 PM 37° Clear 3% 6 mph SW 41%
5 PM 37° Clear 3% 6 mph SW 46%
6 PM 35° Clear 3% 6 mph SSW 50%
7 PM 34° Clear 3% 6 mph SSW 53%
8 PM 33° Clear 3% 6 mph SSW 57%
9 PM 31° Clear 3% 6 mph SSW 60%
10 PM 30° Clear 3% 6 mph SSW 62%
15-Day Forecast
Today
8/31
Clear
3%
21°
33°
Tue
9/1
Clear
3%
21°
37°
Wed
9/2
Clear
3%
22°
39°
Thu
9/3
Mostly Clear
38%
22°
39°
Fri
9/4
Clear
39%
22°
40°
Sat
9/5
Drizzle
60%
23°
40°
Sun
9/6
Clear
19%
21°
38°
Mon
9/7
Clear
19%
17°
38°
Tue
9/8
Drizzle
60%
21°
39°
Wed
9/9
Drizzle
60%
20°
39°
Thu
9/10
Drizzle
60%
18°
37°
Fri
9/11
Drizzle
60%
20°
36°
Sat
9/12
Drizzle
60%
18°
33°
Sun
9/13
Drizzle
60%
17°
32°
Mon
9/14
Drizzle
60%
17°
32°
56
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
56 AQI 11.8 µg/m³
O3
Ground-level ozone
49 AQI 54 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 56 Moderate 49 56
Wed 55 Moderate 54 55
Thu 50 Good 47 50
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 LCL0°C Temperature (°C) Pressure (hPa)
Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio
RAP
Valid Tue Sep 1, 03:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE0 J/kg
MLCAPE23 J/kg
MUCAPE504 J/kg
SBCIN—
MLCIN0 J/kg
Lifted Index1.4
Kinematics
0–6 km Shear15 kt
0–1 km Shear7 kt
Eff. Shear—
0–1 km SRH31
0–3 km SRH49
Eff. SRH—
Storm Motion0° @ 12 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index18.1
Thermo & Levels
PWAT1.25 in
0–3 km LR3.8 °C/km
700–500 LR7.2 °C/km
Total Totals43.6
LCL897 hPa
LFC—
EL—
Freezing Lvl15,863 ft