Severe Thunderstorm Watch 7:00 PM Severe Thunderstorm Watch 7:00 PM Heat Advisory — Peoria, IL, Woodford, IL, Fulton, IL, Tazewell, IL, McLean, IL, Mason, IL, Schuyler, 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, Knox, IL, Stark, IL, Marshall, IL 7:00 PM

McLean County, Illinois, United States

Last updated: 6:18 PM CDT  ·  Refresh
23°C
Feels like 25°
Mostly Cloudy
▲ 30°  /  ▼ 19°
Wind
9 mph W
Humidity
91%
Dew Point
21°
Pressure
29.08 inHg
Visibility
10 mi
UV Index
3.1
Cloud Cover
79%
Sunrise
5:30 AM
Sunset
8:28 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: McLean County is currently mostly cloudy at 23°C. Precipitation is likely — peak probability 66% around 3 PM. Atmospheric instability is elevated (CAPE up to 1240 J/kg) — isolated convective development possible. Sunrise: 5:30AM · Sunset: 8:28PM.

Alerts

Severe Thunderstorm Watch
Expires 7:00 PM
Severe Thunderstorm Watch
Expires 7:00 PM
Heat Advisory
Peoria, IL, Woodford, IL, Fulton, IL, Tazewell, IL, McLean, IL, Mason, IL, Schuyler, 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, Knox, IL, Stark, IL, Marshall, IL
Expires 7:00 PM
53 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
23°
59%
7 PM
24°
48%
8 PM
24°
48%
9 PM
23°
40%
10 PM
22°
34%
11 PM
22°
36%
12 AM
22°
22%
1 AM
20°
14%
2 AM
20°
36%
3 AM
20°
29%
4 AM
20°
20%
5 AM
19°
21%
6 AM
19°
11%
7 AM
19°
25%
8 AM
20°
29%
9 AM
22°
37%
10 AM
22°
55%
11 AM
23°
55%
12 PM
23°
56%
1 PM
24°
55%
2 PM
24°
61%
3 PM
25°
66%
4 PM
25°
56%
5 PM
26°
53%
7-Day Forecast
Tonight
30° 19°
Mostly Cloudy with a 59% chance of rain.
Sun
27° 18°
Mostly Cloudy with a 56% chance of rain.
Mon
27° 17°
Partly Cloudy with a 36% chance of rain.
Tue
27° 16°
Partly Cloudy.
Wed
27° 18°
Partly Cloudy.
Thu
26° 19°
Heavy Rain, 82% chance.
Fri
26° 17°
Rain, 82% chance.
TimeTempConditionsPrecipWindHumidity
Now 23° Mostly Cloudy 59% 9 mph W 91%
7 PM 24° Mostly Cloudy 48% 5 mph NW 92%
8 PM 24° Overcast 48% 4 mph NW 93%
9 PM 23° Overcast 40% 4 mph NW 94%
10 PM 22° Overcast 34% 4 mph NW 95%
11 PM 22° Overcast 36% 3 mph NNW 96%
12 AM 22° Overcast 22% 4 mph NNW 97%
1 AM 20° Overcast 14% 5 mph NNW 97%
2 AM 20° Overcast 36% 5 mph NNW 97%
3 AM 20° Overcast 29% 5 mph NNW 97%
4 AM 20° Overcast 20% 5 mph NNW 97%
5 AM 19° Overcast 21% 5 mph N 97%
6 AM 19° Fog 11% 5 mph N 97%
7 AM 19° Haze 25% 6 mph N 96%
8 AM 20° Mostly Cloudy 29% 6 mph N 93%
9 AM 22° Mostly Cloudy 37% 6 mph N 90%
10 AM 22° Mostly Cloudy 55% 7 mph N 87%
11 AM 23° Mostly Cloudy 55% 7 mph N 86%
12 PM 23° Mostly Cloudy 56% 7 mph N 85%
1 PM 24° Mostly Cloudy 55% 7 mph N 84%
2 PM 24° Mostly Cloudy 61% 7 mph N 83%
3 PM 25° Mostly Cloudy 66% 7 mph N 82%
4 PM 25° Mostly Cloudy 56% 8 mph N 83%
5 PM 26° Rain 53% 8 mph N 86%
15-Day Forecast
Today
7/4
Mostly Cloudy
59%
19°
30°
Sun
7/5
Mostly Cloudy
56%
18°
27°
Mon
7/6
Partly Cloudy
36%
17°
27°
Tue
7/7
Partly Cloudy
14%
16°
27°
Wed
7/8
Partly Cloudy
16%
18°
27°
Thu
7/9
Heavy Rain
82%
19°
26°
Fri
7/10
Rain
82%
17°
26°
Sat
7/11
Clear
53%
17°
24°
Sun
7/12
Drizzle
63%
14°
25°
Mon
7/13
Mostly Clear
44%
16°
26°
Tue
7/14
Overcast
27%
17°
27°
Wed
7/15
Drizzle
60%
17°
27°
Thu
7/16
Drizzle
60%
17°
24°
Fri
7/17
Drizzle
60%
16°
24°
Sat
7/18
Drizzle
60%
17°
25°
53
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
53 AQI 10.3 µg/m³
O3
Ground-level ozone
37 AQI 41 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Sun 53 Moderate 37 53
Mon 42 Good 42 36
Tue 59 Moderate 43 59
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
SBCAPE502 J/kg
MLCAPE930 J/kg
MUCAPE1418 J/kg
SBCIN-65 J/kg
MLCIN0 J/kg
Lifted Index-2.4
Kinematics
0–6 km Shear18 kt
0–1 km Shear8 kt
Eff. Shear18 kt
0–1 km SRH-50
0–3 km SRH-70
Eff. SRH-70
Storm Motion220° @ 20 kt
0–1 km EHI-0.2
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index37.4
Thermo & Levels
PWAT2.16 in
0–3 km LR5.3 °C/km
700–500 LR5.5 °C/km
Total Totals49.0
LCL959 hPa
LFC750 hPa
EL281 hPa
Freezing Lvl13,445 ft