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

Peoria, Illinois

Last updated: 1:55 AM CDT  ·  Refresh
26°C
Feels like 28°
Clear
▲ 35°  /  ▼ 24°
Wind
4 mph S
Humidity
70%
Dew Point
21°
Pressure
29.33 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
0%
Sunrise
6:27 AM
Sunset
7:27 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Peoria is currently clear at 26°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2730 J/kg) — isolated convective development possible. Sunrise: 6:27AM · Sunset: 7:27PM.

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
63 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
26°
8%
2 AM
26°
8%
3 AM
25°
3%
4 AM
24°
3%
5 AM
23°
3%
6 AM
23°
3%
7 AM
24°
7%
8 AM
27°
15%
9 AM
28°
15%
10 AM
30°
15%
11 AM
31°
16%
12 PM
32°
16%
1 PM
34°
16%
2 PM
34°
17%
3 PM
34°
17%
4 PM
34°
17%
5 PM
35°
17%
6 PM
34°
3%
7 PM
33°
3%
8 PM
32°
3%
9 PM
28°
3%
10 PM
28°
5%
11 PM
27°
5%
12 AM
27°
5%
7-Day Forecast
Today
35° 24°
Mostly Clear.
Fri
37° 24°
Mostly Clear.
Sat
36° 22°
Clear with a 36% chance of rain.
Sun
29° 18°
Overcast.
Mon
31° 16°
Clear.
Tue
34° 18°
Clear with a 30% chance of rain.
Wed
37° 22°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 26° Clear 8% 4 mph S 70%
2 AM 26° Clear 8% 5 mph SSW 65%
3 AM 25° Clear 3% 5 mph SSW 68%
4 AM 24° Clear 3% 4 mph SSW 71%
5 AM 23° Clear 3% 4 mph S 74%
6 AM 23° Clear 3% 4 mph S 76%
7 AM 24° Clear 7% 6 mph SSW 73%
8 AM 27° Clear 15% 8 mph SW 67%
9 AM 28° Clear 15% 8 mph SW 62%
10 AM 30° Clear 15% 8 mph SW 59%
11 AM 31° Mostly Clear 16% 8 mph SW 56%
12 PM 32° Mostly Clear 16% 8 mph SW 53%
1 PM 34° Mostly Clear 16% 7 mph SW 51%
2 PM 34° Clear 17% 6 mph SW 49%
3 PM 34° Clear 17% 6 mph SSW 47%
4 PM 34° Mostly Clear 17% 6 mph SSW 52%
5 PM 35° Mostly Clear 17% 5 mph S 57%
6 PM 34° Mostly Clear 3% 6 mph SSE 63%
7 PM 33° Mostly Clear 3% 6 mph SSE 65%
8 PM 32° Mostly Clear 3% 6 mph SSE 65%
9 PM 28° Mostly Clear 3% 6 mph S 65%
10 PM 28° Mostly Clear 5% 6 mph S 66%
11 PM 27° Mostly Clear 5% 6 mph S 68%
12 AM 27° Mostly Clear 5% 6 mph S 69%
15-Day Forecast
Today
9/3
Mostly Clear
17%
24°
35°
Fri
9/4
Mostly Clear
12%
24°
37°
Sat
9/5
Clear
36%
22°
36°
Sun
9/6
Overcast
17%
18°
29°
Mon
9/7
Clear
16%
16°
31°
Tue
9/8
Clear
30%
18°
34°
Wed
9/9
Clear
17%
22°
37°
Thu
9/10
Drizzle
43%
19°
34°
Fri
9/11
Drizzle
68%
19°
36°
Sat
9/12
Rain
68%
20°
36°
Sun
9/13
Drizzle
60%
19°
31°
Mon
9/14
Drizzle
60%
19°
32°
Tue
9/15
Drizzle
60%
17°
30°
Wed
9/16
Drizzle
60%
16°
29°
Thu
9/17
Drizzle
60%
16°
28°
63
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
63 AQI 15.5 µg/m³
O3
Ground-level ozone
38 AQI 41 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 63 Moderate 38 63
Fri 54 Moderate 37 54
Sat 53 Moderate 42 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 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
SBCAPE526 J/kg
MLCAPE221 J/kg
MUCAPE526 J/kg
SBCIN-403 J/kg
MLCIN-243 J/kg
Lifted Index-1.8
Kinematics
0–6 km Shear23 kt
0–1 km Shear14 kt
Eff. Shear20 kt
0–1 km SRH81
0–3 km SRH63
Eff. SRH-1
Storm Motion314° @ 16 kt
0–1 km EHI0.3
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index26.7
Thermo & Levels
PWAT1.33 in
0–3 km LR5.3 °C/km
700–500 LR5.8 °C/km
Total Totals44.8
LCL926 hPa
LFC617 hPa
EL239 hPa
Freezing Lvl15,860 ft