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

De Witt, Illinois

Last updated: 11:46 PM CDT  ·  Refresh
26°C
Feels like 26°
Clear
▲ 31°  /  ▼ 20°
Wind
8 mph SSW
Humidity
66%
Dew Point
20°
Pressure
29.20 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
1%
Sunrise
6:21 AM
Sunset
7:28 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: De Witt is currently clear at 26°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1987 J/kg) — isolated convective development possible. Sunrise: 6:21AM · Sunset: 7:28PM.

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
60 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
26°
5%
12 AM
26°
5%
1 AM
25°
5%
2 AM
24°
5%
3 AM
24°
5%
4 AM
23°
3%
5 AM
22°
3%
6 AM
22°
3%
7 AM
23°
3%
8 AM
26°
3%
9 AM
28°
3%
10 AM
30°
3%
11 AM
32°
3%
12 PM
33°
3%
1 PM
36°
3%
2 PM
36°
3%
3 PM
36°
3%
4 PM
35°
3%
5 PM
35°
3%
6 PM
33°
3%
7 PM
33°
3%
8 PM
32°
3%
9 PM
29°
3%
10 PM
29°
3%
7-Day Forecast
Tonight
31° 20°
Clear.
Tue
36° 22°
Clear.
Wed
38° 22°
Clear.
Thu
38° 22°
Partly Cloudy with a 21% chance of rain.
Fri
38° 22°
Partly Cloudy.
Sat
38° 23°
Drizzle, 60% chance.
Sun
36° 21°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 26° Clear 5% 8 mph SSW 66%
12 AM 26° Clear 5% 9 mph SSW 63%
1 AM 25° Clear 5% 9 mph SSW 66%
2 AM 24° Clear 5% 9 mph SSW 68%
3 AM 24° Clear 5% 8 mph SSW 70%
4 AM 23° Clear 3% 8 mph SW 72%
5 AM 22° Clear 3% 7 mph SW 75%
6 AM 22° Clear 3% 7 mph SW 77%
7 AM 23° Clear 3% 8 mph SW 74%
8 AM 26° Clear 3% 9 mph WSW 68%
9 AM 28° Clear 3% 10 mph WSW 64%
10 AM 30° Clear 3% 9 mph WSW 60%
11 AM 32° Clear 3% 9 mph WSW 55%
12 PM 33° Clear 3% 9 mph WSW 50%
1 PM 36° Clear 3% 8 mph WSW 47%
2 PM 36° Clear 3% 8 mph WSW 45%
3 PM 36° Clear 3% 8 mph WSW 44%
4 PM 35° Clear 3% 7 mph SW 47%
5 PM 35° Clear 3% 6 mph SW 52%
6 PM 33° Clear 3% 6 mph SSW 57%
7 PM 33° Clear 3% 6 mph SSW 59%
8 PM 32° Clear 3% 6 mph SSW 61%
9 PM 29° Clear 3% 6 mph SSW 63%
10 PM 29° Clear 3% 6 mph SSW 64%
15-Day Forecast
Today
8/31
Clear
5%
20°
31°
Tue
9/1
Clear
5%
22°
36°
Wed
9/2
Clear
7%
22°
38°
Thu
9/3
Partly Cloudy
21%
22°
38°
Fri
9/4
Partly Cloudy
16%
22°
38°
Sat
9/5
Drizzle
60%
23°
38°
Sun
9/6
Clear
19%
21°
36°
Mon
9/7
Clear
19%
17°
34°
Tue
9/8
Drizzle
60%
19°
36°
Wed
9/9
Drizzle
60%
19°
37°
Thu
9/10
Drizzle
60%
17°
34°
Fri
9/11
Drizzle
60%
19°
33°
Sat
9/12
Drizzle
60%
17°
31°
Sun
9/13
Drizzle
60%
16°
30°
Mon
9/14
Drizzle
60%
17°
29°
60
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
60 AQI 13.8 µg/m³
O3
Ground-level ozone
49 AQI 53 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 60 Moderate 49 60
Wed 61 Moderate 45 61
Thu 53 Moderate 43 53
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 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
SBCAPE58 J/kg
MLCAPE263 J/kg
MUCAPE571 J/kg
SBCIN-700 J/kg
MLCIN-421 J/kg
Lifted Index-0.9
Kinematics
0–6 km Shear24 kt
0–1 km Shear18 kt
Eff. Shear23 kt
0–1 km SRH150
0–3 km SRH141
Eff. SRH20
Storm Motion318° @ 15 kt
0–1 km EHI0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.1
K-Index34.9
Thermo & Levels
PWAT1.58 in
0–3 km LR4.5 °C/km
700–500 LR6.8 °C/km
Total Totals46.1
LCL905 hPa
LFC416 hPa
EL265 hPa
Freezing Lvl15,554 ft