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

Piatt County, Illinois, United States

Last updated: 11:43 PM CDT  ·  Refresh
26°C
Feels like 26°
Clear
▲ 32°  /  ▼ 20°
Wind
8 mph SSW
Humidity
66%
Dew Point
19°
Pressure
29.25 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
0%
Sunrise
6:21 AM
Sunset
7:27 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Piatt County is currently clear at 25°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2041 J/kg) — isolated convective development possible. Sunrise: 6:21AM · Sunset: 7:27PM.

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
59 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
26°
5%
12 AM
25°
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
29°
3%
11 AM
31°
3%
12 PM
33°
3%
1 PM
36°
3%
2 PM
36°
3%
3 PM
36°
3%
4 PM
36°
3%
5 PM
36°
3%
6 PM
34°
3%
7 PM
33°
3%
8 PM
32°
3%
9 PM
29°
3%
10 PM
29°
3%
7-Day Forecast
Tonight
32° 20°
Clear.
Tue
36° 22°
Clear.
Wed
38° 22°
Clear.
Thu
38° 22°
Partly Cloudy with a 21% chance of rain.
Fri
38° 22°
Mostly Clear.
Sat
39° 23°
Clear.
Sun
36° 21°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 26° Clear 5% 8 mph SSW 66%
12 AM 25° Clear 5% 9 mph SSW 63%
1 AM 25° Clear 5% 9 mph SSW 65%
2 AM 24° Clear 5% 8 mph SSW 67%
3 AM 24° Clear 5% 8 mph SSW 69%
4 AM 23° Clear 3% 8 mph SSW 72%
5 AM 22° Clear 3% 8 mph SSW 74%
6 AM 22° Clear 3% 7 mph SW 76%
7 AM 23° Clear 3% 8 mph SW 74%
8 AM 26° Clear 3% 9 mph SW 68%
9 AM 28° Clear 3% 10 mph WSW 63%
10 AM 29° Clear 3% 9 mph WSW 58%
11 AM 31° Clear 3% 9 mph WSW 54%
12 PM 33° Clear 3% 9 mph WSW 50%
1 PM 36° Clear 3% 8 mph WSW 46%
2 PM 36° Clear 3% 7 mph WSW 44%
3 PM 36° Clear 3% 7 mph WSW 42%
4 PM 36° Clear 3% 6 mph WSW 44%
5 PM 36° Clear 3% 5 mph SW 50%
6 PM 34° Clear 3% 5 mph SW 55%
7 PM 33° Clear 3% 6 mph SSW 58%
8 PM 32° Clear 3% 6 mph SSW 60%
9 PM 29° Clear 3% 6 mph SSW 62%
10 PM 29° Clear 3% 6 mph SSW 64%
15-Day Forecast
Today
8/31
Clear
5%
20°
32°
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
Mostly Clear
16%
22°
38°
Sat
9/5
Clear
19%
23°
39°
Sun
9/6
Clear
19%
21°
36°
Mon
9/7
Clear
19%
17°
34°
Tue
9/8
Drizzle
60%
18°
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%
17°
30°
Mon
9/14
Drizzle
60%
17°
30°
59
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
59 AQI 13.4 µg/m³
O3
Ground-level ozone
48 AQI 53 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 59 Moderate 48 59
Wed 61 Moderate 48 61
Thu 53 Moderate 45 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
SBCAPE11 J/kg
MLCAPE18 J/kg
MUCAPE258 J/kg
SBCIN-803 J/kg
MLCIN0 J/kg
Lifted Index-0.2
Kinematics
0–6 km Shear22 kt
0–1 km Shear13 kt
Eff. Shear—
0–1 km SRH93
0–3 km SRH97
Eff. SRH—
Storm Motion334° @ 13 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index32.0
Thermo & Levels
PWAT1.49 in
0–3 km LR4.3 °C/km
700–500 LR6.9 °C/km
Total Totals44.9
LCL904 hPa
LFC549 hPa
EL491 hPa
Freezing Lvl15,597 ft