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

Macon County, Illinois, United States

Last updated: 1:53 AM CDT  ·  Refresh
26°C
Feels like 27°
Clear
▲ 36°  /  ▼ 23°
Wind
7 mph SSW
Humidity
68%
Dew Point
20°
Pressure
29.26 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
0%
Sunrise
6:25 AM
Sunset
7:23 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Macon County is currently clear at 26°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1419 J/kg) — isolated convective development possible. Sunrise: 6:25AM · Sunset: 7:23PM.

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
57 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
26°
3%
8 AM
28°
3%
9 AM
30°
3%
10 AM
32°
3%
11 AM
32°
3%
12 PM
33°
3%
1 PM
36°
3%
2 PM
36°
3%
3 PM
36°
3%
4 PM
35°
3%
5 PM
36°
3%
6 PM
34°
3%
7 PM
33°
3%
8 PM
32°
3%
9 PM
28°
3%
10 PM
28°
3%
11 PM
27°
3%
12 AM
27°
3%
7-Day Forecast
Today
36° 23°
Clear.
Fri
40° 23°
Clear with a 20% chance of rain.
Sat
40° 22°
Mostly Clear with a 26% chance of rain.
Sun
32° 17°
Fog.
Mon
34° 14°
Clear.
Tue
38° 18°
Clear.
Wed
42° 22°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 26° Clear 8% 7 mph SSW 68%
2 AM 26° Clear 8% 6 mph SSW 65%
3 AM 25° Clear 3% 6 mph SSW 68%
4 AM 24° Clear 3% 6 mph SSW 71%
5 AM 23° Clear 3% 6 mph SSW 74%
6 AM 23° Clear 3% 6 mph SSW 76%
7 AM 26° Clear 3% 8 mph SSW 70%
8 AM 28° Clear 3% 8 mph SW 62%
9 AM 30° Clear 3% 9 mph SW 55%
10 AM 32° Clear 3% 10 mph SW 50%
11 AM 32° Clear 3% 10 mph SW 46%
12 PM 33° Clear 3% 10 mph SW 42%
1 PM 36° Clear 3% 10 mph SW 40%
2 PM 36° Clear 3% 10 mph SW 39%
3 PM 36° Clear 3% 9 mph SW 38%
4 PM 35° Clear 3% 7 mph SSW 42%
5 PM 36° Clear 3% 6 mph SSW 48%
6 PM 34° Clear 3% 6 mph SSW 54%
7 PM 33° Clear 3% 5 mph S 58%
8 PM 32° Clear 3% 6 mph S 60%
9 PM 28° Clear 3% 7 mph S 62%
10 PM 28° Clear 3% 7 mph S 63%
11 PM 27° Clear 3% 7 mph S 64%
12 AM 27° Clear 3% 7 mph S 65%
15-Day Forecast
Today
9/3
Clear
8%
23°
36°
Fri
9/4
Clear
20%
23°
40°
Sat
9/5
Mostly Clear
26%
22°
40°
Sun
9/6
Fog
16%
17°
32°
Mon
9/7
Clear
16%
14°
34°
Tue
9/8
Clear
17%
18°
38°
Wed
9/9
Clear
17%
22°
42°
Thu
9/10
Rain
69%
20°
39°
Fri
9/11
Clear
68%
20°
39°
Sat
9/12
Drizzle
51%
21°
39°
Sun
9/13
Drizzle
60%
19°
34°
Mon
9/14
Drizzle
60%
19°
34°
Tue
9/15
Drizzle
60%
18°
32°
Wed
9/16
Drizzle
60%
17°
31°
Thu
9/17
Drizzle
60%
16°
31°
57
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
57 AQI 12.5 µg/m³
O3
Ground-level ozone
46 AQI 51 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 57 Moderate 46 57
Fri 54 Moderate 44 54
Sat 52 Moderate 42 52
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 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE105 J/kg
MLCAPE185 J/kg
MUCAPE481 J/kg
SBCIN-527 J/kg
MLCIN-254 J/kg
Lifted Index-0.8
Kinematics
0–6 km Shear18 kt
0–1 km Shear7 kt
Eff. Shear13 kt
0–1 km SRH45
0–3 km SRH52
Eff. SRH-16
Storm Motion319° @ 13 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index28.9
Thermo & Levels
PWAT1.39 in
0–3 km LR5.6 °C/km
700–500 LR5.7 °C/km
Total Totals45.7
LCL903 hPa
LFC542 hPa
EL298 hPa
Freezing Lvl15,879 ft