Vermilion County, Illinois, United States

Last updated: 7:12 PM CDT  ·  Refresh
23°C
Feels like 24°
Rain
▲ 31°  /  ▼ 19°
Wind
9 mph N
Humidity
96%
Dew Point
22°
Pressure
29.25 inHg
Visibility
6 mi
UV Index
1.4
Cloud Cover
90%
Sunrise
5:26 AM
Sunset
8:23 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Vermilion County is currently rain at 23°C. Precipitation is likely — peak probability 88% around 8 PM. Atmospheric instability is elevated (CAPE up to 1120 J/kg) — isolated convective development possible. Sunrise: 5:26AM · Sunset: 8:23PM.

Alerts

No active alerts for this location.
55 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
23°
69%
8 PM
24°
87%
9 PM
23°
44%
10 PM
23°
31%
11 PM
23°
30%
12 AM
22°
35%
1 AM
21°
23%
2 AM
21°
27%
3 AM
21°
27%
4 AM
21°
27%
5 AM
19°
25%
6 AM
19°
32%
7 AM
19°
33%
8 AM
21°
33%
9 AM
22°
25%
10 AM
23°
42%
11 AM
23°
43%
12 PM
24°
43%
1 PM
26°
47%
2 PM
26°
52%
3 PM
26°
53%
4 PM
26°
43%
5 PM
27°
48%
6 PM
27°
42%
7-Day Forecast
Tonight
31° 19°
Rain, 69% chance.
Sun
27° 19°
Mostly Cloudy with a 47% chance of rain.
Mon
28° 17°
Partly Cloudy.
Tue
28° 16°
Partly Cloudy.
Wed
27° 18°
Mostly Cloudy.
Thu
26° 20°
Rain, 90% chance.
Fri
26° 18°
Rain, 82% chance.
TimeTempConditionsPrecipWindHumidity
Now 23° Rain 69% 9 mph N 96%
8 PM 24° Mostly Cloudy 87% 5 mph ENE 95%
9 PM 23° Overcast 44% 4 mph SE 96%
10 PM 23° Overcast 31% 3 mph SSE 96%
11 PM 23° Overcast 30% 2 mph WSW 97%
12 AM 22° Overcast 35% 3 mph WNW 97%
1 AM 21° Overcast 23% 3 mph NW 98%
2 AM 21° Overcast 27% 4 mph NW 97%
3 AM 21° Overcast 27% 5 mph NNW 98%
4 AM 21° Overcast 27% 5 mph NNW 98%
5 AM 19° Overcast 25% 4 mph NNW 97%
6 AM 19° Mostly Cloudy 32% 5 mph NNW 97%
7 AM 19° Fog 33% 4 mph NNW 96%
8 AM 21° Mostly Cloudy 33% 5 mph NNW 93%
9 AM 22° Mostly Cloudy 25% 6 mph NNW 90%
10 AM 23° Overcast 42% 6 mph NNW 88%
11 AM 23° Mostly Cloudy 43% 6 mph NNW 84%
12 PM 24° Mostly Cloudy 43% 6 mph NNW 81%
1 PM 26° Mostly Cloudy 47% 6 mph NNW 78%
2 PM 26° Mostly Cloudy 52% 6 mph NNW 76%
3 PM 26° Mostly Cloudy 53% 7 mph NNW 75%
4 PM 26° Mostly Cloudy 43% 7 mph NNW 75%
5 PM 27° Mostly Cloudy 48% 8 mph N 78%
6 PM 27° Partly Cloudy 42% 8 mph N 82%
15-Day Forecast
Today
7/4
Rain
69%
19°
31°
Sun
7/5
Mostly Cloudy
47%
19°
27°
Mon
7/6
Partly Cloudy
17%
17°
28°
Tue
7/7
Partly Cloudy
14%
16°
28°
Wed
7/8
Mostly Cloudy
16%
18°
27°
Thu
7/9
Rain
90%
20°
26°
Fri
7/10
Rain
82%
18°
26°
Sat
7/11
Clear
17%
17°
24°
Sun
7/12
Drizzle
43%
15°
24°
Mon
7/13
Mostly Clear
44%
16°
27°
Tue
7/14
Drizzle
60%
17°
28°
Wed
7/15
Drizzle
60%
17°
28°
Thu
7/16
Drizzle
60%
17°
24°
Fri
7/17
Drizzle
60%
17°
24°
Sat
7/18
Drizzle
60%
17°
25°
55
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
55 AQI 11.2 µg/m³
O3
Ground-level ozone
35 AQI 38 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 55 Moderate 35 55
Mon 39 Good 39 36
Tue 57 Moderate 34 57
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, 22:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE323 J/kg
MLCAPE1585 J/kg
MUCAPE2325 J/kg
SBCIN-144 J/kg
MLCIN0 J/kg
Lifted Index-1.2
Kinematics
0–6 km Shear26 kt
0–1 km Shear12 kt
Eff. Shear26 kt
0–1 km SRH-34
0–3 km SRH-54
Eff. SRH-54
Storm Motion178° @ 15 kt
0–1 km EHI-0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index38.6
Thermo & Levels
PWAT2.33 in
0–3 km LR5.1 °C/km
700–500 LR5.0 °C/km
Total Totals47.4
LCL973 hPa
LFC753 hPa
EL362 hPa
Freezing Lvl13,468 ft