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

Vermilion County, Illinois, United States

Last updated: 1:53 AM CDT  ·  Refresh
24°C
Feels like 27°
Clear
▲ 36°  /  ▼ 22°
Wind
5 mph SSW
Humidity
78%
Dew Point
21°
Pressure
29.29 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
2%
Sunrise
6:20 AM
Sunset
7:19 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Vermilion County is currently clear at 25°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2371 J/kg) — isolated convective development possible. Sunrise: 6:20AM · Sunset: 7:19PM.

Alerts

Extreme Heat Warning
Knox, IL, Stark, IL, Peoria, IL, Marshall, IL, Woodford, IL, Fulton, IL, Tazewell, IL, McLean, IL, Schuyler, IL, Mason, IL, Logan, IL, De Witt, IL, Piatt, IL, Champaign, IL, Vermilion, IL, Cass, IL, Menard, IL, Scott, IL, Morgan, IL, Sangamon, IL, Christian, IL, Macon, IL, Moultrie, IL, Douglas, IL, Coles, IL, Edgar, IL, Shelby, IL, Cumberland, IL, Clark, IL, Effingham, IL, Jasper, IL, Crawford, IL, Clay, IL, Richland, IL, Lawrence, IL
Expires 7:00 PM
Heat Advisory
Knox, IL, Stark, IL, Peoria, IL, Marshall, IL, Woodford, IL, Fulton, IL, Tazewell, IL, McLean, IL, Schuyler, IL, Mason, IL, Logan, IL, De Witt, IL, Piatt, IL, Champaign, IL, Vermilion, IL, Cass, IL, Menard, IL, Scott, IL, Morgan, IL, Sangamon, IL, Christian, IL, Macon, IL, Moultrie, IL, Douglas, IL, Coles, IL, Edgar, IL, Shelby, IL, Cumberland, IL, Clark, IL, Effingham, IL, Jasper, IL, Crawford, IL, Clay, IL, Richland, IL, Lawrence, IL
Expires 7:00 PM
54 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
24°
13%
2 AM
25°
9%
3 AM
24°
4%
4 AM
23°
6%
5 AM
22°
4%
6 AM
22°
4%
7 AM
24°
9%
8 AM
27°
9%
9 AM
29°
17%
10 AM
31°
15%
11 AM
31°
16%
12 PM
34°
16%
1 PM
34°
16%
2 PM
34°
17%
3 PM
35°
17%
4 PM
36°
17%
5 PM
34°
8%
6 PM
33°
8%
7 PM
32°
9%
8 PM
28°
9%
9 PM
27°
9%
10 PM
27°
3%
11 PM
26°
3%
12 AM
27°
3%
7-Day Forecast
Today
36° 22°
Clear.
Fri
36° 22°
Clear with a 22% chance of rain.
Sat
36° 21°
Partly Cloudy with a 52% chance of rain.
Sun
28° 16°
Overcast.
Mon
29° 14°
Clear.
Tue
33° 17°
Drizzle, 52% chance.
Wed
37° 22°
Clear with a 31% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 24° Clear 13% 5 mph SSW 78%
2 AM 25° Clear 9% 6 mph SW 74%
3 AM 24° Clear 4% 6 mph SW 75%
4 AM 23° Clear 6% 6 mph SW 77%
5 AM 22° Clear 4% 6 mph SSW 80%
6 AM 22° Clear 4% 6 mph SSW 83%
7 AM 24° Clear 9% 7 mph SW 79%
8 AM 27° Clear 9% 8 mph SW 74%
9 AM 29° Clear 17% 9 mph SW 68%
10 AM 31° Clear 15% 9 mph SW 64%
11 AM 31° Clear 16% 9 mph SW 61%
12 PM 34° Mostly Clear 16% 10 mph SW 57%
1 PM 34° Mostly Clear 16% 9 mph SW 55%
2 PM 34° Clear 17% 8 mph SW 54%
3 PM 35° Clear 17% 8 mph SW 53%
4 PM 36° Clear 17% 6 mph SW 57%
5 PM 34° Clear 8% 5 mph SSW 63%
6 PM 33° Clear 8% 5 mph S 69%
7 PM 32° Clear 9% 5 mph S 70%
8 PM 28° Clear 9% 5 mph S 72%
9 PM 27° Clear 9% 6 mph S 72%
10 PM 27° Clear 3% 6 mph S 73%
11 PM 26° Clear 3% 6 mph S 74%
12 AM 27° Mostly Clear 3% 6 mph S 74%
15-Day Forecast
Today
9/3
Clear
17%
22°
36°
Fri
9/4
Clear
22%
22°
36°
Sat
9/5
Partly Cloudy
52%
21°
36°
Sun
9/6
Overcast
15%
16°
28°
Mon
9/7
Clear
16%
14°
29°
Tue
9/8
Drizzle
52%
17°
33°
Wed
9/9
Clear
31%
22°
37°
Thu
9/10
Rain
69%
19°
34°
Fri
9/11
Rain
44%
19°
36°
Sat
9/12
Drizzle
51%
19°
37°
Sun
9/13
Drizzle
60%
19°
31°
Mon
9/14
Drizzle
60%
18°
31°
Tue
9/15
Drizzle
60%
17°
30°
Wed
9/16
Drizzle
60%
16°
29°
Thu
9/17
Drizzle
60%
16°
28°
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
40 AQI 44 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 54 Moderate 40 54
Fri 45 Good 43 45
Sat 41 Good 41 39
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 Thu Sep 3, 05:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE532 J/kg
MLCAPE188 J/kg
MUCAPE532 J/kg
SBCIN-394 J/kg
MLCIN-271 J/kg
Lifted Index-2.1
Kinematics
0–6 km Shear20 kt
0–1 km Shear13 kt
Eff. Shear13 kt
0–1 km SRH61
0–3 km SRH62
Eff. SRH27
Storm Motion312° @ 16 kt
0–1 km EHI0.2
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index34.4
Thermo & Levels
PWAT1.46 in
0–3 km LR5.3 °C/km
700–500 LR5.6 °C/km
Total Totals46.2
LCL943 hPa
LFC591 hPa
EL241 hPa
Freezing Lvl15,794 ft