De Witt, Illinois

Last updated: 8:21 PM CDT  ·  Refresh
22°C
Feels like 25°
Mostly Cloudy
▲ 30°  /  ▼ 18°
Wind
5 mph N
Humidity
94%
Dew Point
21°
Pressure
29.15 inHg
Visibility
9 mi
UV Index
0.0
Cloud Cover
79%
Sunrise
5:31 AM
Sunset
8:27 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: De Witt is currently mostly cloudy at 22°C. Precipitation is likely — peak probability 57% around 3 PM. Atmospheric instability is elevated (CAPE up to 1185 J/kg) — isolated convective development possible. Sunrise: 5:31AM · Sunset: 8:27PM.

Alerts

No active alerts for this location.
58 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
22°
20%
9 PM
23°
30%
10 PM
22°
24%
11 PM
22°
29%
12 AM
22°
41%
1 AM
21°
33%
2 AM
21°
20%
3 AM
20°
11%
4 AM
20°
11%
5 AM
18°
11%
6 AM
19°
20%
7 AM
19°
26%
8 AM
20°
37%
9 AM
22°
29%
10 AM
23°
46%
11 AM
23°
36%
12 PM
24°
43%
1 PM
26°
43%
2 PM
26°
52%
3 PM
26°
57%
4 PM
26°
47%
5 PM
26°
47%
6 PM
26°
28%
7 PM
25°
14%
7-Day Forecast
Tonight
30° 18°
Mostly Cloudy with a 29% chance of rain.
Sun
27° 18°
Mostly Cloudy with a 52% chance of rain.
Mon
27° 17°
Partly Cloudy with a 26% chance of rain.
Tue
27° 16°
Clear.
Wed
27° 18°
Clear.
Thu
26° 19°
Heavy Rain, 90% chance.
Fri
25° 17°
Rain, 64% chance.
TimeTempConditionsPrecipWindHumidity
Now 22° Mostly Cloudy 20% 5 mph N 94%
9 PM 23° Mostly Cloudy 30% 4 mph ENE 94%
10 PM 22° Overcast 24% 3 mph NNE 95%
11 PM 22° Overcast 29% 4 mph N 96%
12 AM 22° Mostly Cloudy 41% 5 mph NNW 97%
1 AM 21° Mostly Cloudy 33% 5 mph NW 97%
2 AM 21° Mostly Cloudy 20% 4 mph NW 97%
3 AM 20° Mostly Cloudy 11% 5 mph NNW 97%
4 AM 20° Overcast 11% 5 mph NNW 97%
5 AM 18° Overcast 11% 6 mph NNW 96%
6 AM 19° Overcast 20% 6 mph NNW 96%
7 AM 19° Overcast 26% 6 mph N 95%
8 AM 20° Mostly Cloudy 37% 6 mph N 91%
9 AM 22° Mostly Cloudy 29% 6 mph N 88%
10 AM 23° Mostly Cloudy 46% 7 mph N 85%
11 AM 23° Mostly Cloudy 36% 7 mph N 82%
12 PM 24° Mostly Cloudy 43% 7 mph N 80%
1 PM 26° Mostly Cloudy 43% 7 mph N 77%
2 PM 26° Mostly Cloudy 52% 7 mph N 77%
3 PM 26° Mostly Cloudy 57% 7 mph N 77%
4 PM 26° Mostly Cloudy 47% 8 mph N 78%
5 PM 26° Mostly Cloudy 47% 8 mph N 81%
6 PM 26° Mostly Cloudy 28% 8 mph N 83%
7 PM 25° Mostly Cloudy 14% 8 mph N 86%
15-Day Forecast
Today
7/4
Mostly Cloudy
29%
18°
30°
Sun
7/5
Mostly Cloudy
52%
18°
27°
Mon
7/6
Partly Cloudy
26%
17°
27°
Tue
7/7
Clear
3%
16°
27°
Wed
7/8
Clear
19%
18°
27°
Thu
7/9
Heavy Rain
90%
19°
26°
Fri
7/10
Rain
64%
17°
25°
Sat
7/11
Clear
31%
17°
24°
Sun
7/12
Drizzle
43%
14°
24°
Mon
7/13
Drizzle
44%
13°
26°
Tue
7/14
Clear
25%
17°
28°
Wed
7/15
Drizzle
60%
19°
28°
Thu
7/16
Drizzle
60%
18°
26°
Fri
7/17
Drizzle
60%
19°
27°
Sat
7/18
Drizzle
60%
19°
27°
58
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
58 AQI 12.7 µg/m³
O3
Ground-level ozone
33 AQI 36 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 58 Moderate 33 58
Mon 39 Good 38 39
Tue 60 Moderate 35 60
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 Sat Jul 4, 23:00'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
SBCAPE313 J/kg
MLCAPE557 J/kg
MUCAPE837 J/kg
SBCIN-143 J/kg
MLCIN0 J/kg
Lifted Index-2.1
Kinematics
0–6 km Shear24 kt
0–1 km Shear9 kt
Eff. Shear25 kt
0–1 km SRH-45
0–3 km SRH-108
Eff. SRH-108
Storm Motion224° @ 16 kt
0–1 km EHI-0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index29.1
Thermo & Levels
PWAT1.71 in
0–3 km LR4.3 °C/km
700–500 LR6.3 °C/km
Total Totals45.1
LCL971 hPa
LFC648 hPa
EL291 hPa
Freezing Lvl14,396 ft