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

Effingham County, Illinois, United States

Last updated: 11:45 PM CDT  ·  Refresh
25°C
Feels like 26°
Clear
▲ 33°  /  ▼ 21°
Wind
6 mph S
Humidity
68%
Dew Point
19°
Pressure
29.41 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
1%
Sunrise
6:22 AM
Sunset
7:26 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Effingham County is currently clear at 25°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1815 J/kg) — isolated convective development possible. Sunrise: 6:22AM · Sunset: 7:26PM.

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
55 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
25°
3%
12 AM
24°
3%
1 AM
24°
3%
2 AM
23°
3%
3 AM
23°
3%
4 AM
22°
3%
5 AM
21°
3%
6 AM
21°
3%
7 AM
23°
3%
8 AM
27°
3%
9 AM
29°
3%
10 AM
31°
3%
11 AM
33°
3%
12 PM
34°
3%
1 PM
37°
3%
2 PM
37°
3%
3 PM
37°
3%
4 PM
36°
3%
5 PM
37°
3%
6 PM
35°
3%
7 PM
34°
3%
8 PM
33°
3%
9 PM
31°
3%
10 PM
30°
3%
7-Day Forecast
Tonight
33° 21°
Clear.
Tue
37° 21°
Clear.
Wed
39° 22°
Clear.
Thu
39° 22°
Mostly Clear with a 38% chance of rain.
Fri
40° 23°
Clear with a 39% chance of rain.
Sat
41° 23°
Drizzle, 60% chance.
Sun
39° 21°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 25° Clear 3% 6 mph S 68%
12 AM 24° Clear 3% 7 mph SSW 66%
1 AM 24° Clear 3% 7 mph SSW 71%
2 AM 23° Clear 3% 6 mph SSW 75%
3 AM 23° Clear 3% 6 mph SSW 79%
4 AM 22° Clear 3% 6 mph SSW 80%
5 AM 21° Clear 3% 6 mph SSW 81%
6 AM 21° Clear 3% 6 mph SSW 79%
7 AM 23° Clear 3% 7 mph SW 72%
8 AM 27° Clear 3% 9 mph SW 62%
9 AM 29° Clear 3% 10 mph WSW 54%
10 AM 31° Clear 3% 10 mph WSW 50%
11 AM 33° Clear 3% 10 mph WSW 46%
12 PM 34° Clear 3% 9 mph WSW 43%
1 PM 37° Clear 3% 8 mph SW 41%
2 PM 37° Clear 3% 8 mph SW 40%
3 PM 37° Clear 3% 8 mph SW 39%
4 PM 36° Clear 3% 7 mph SSW 42%
5 PM 37° Clear 3% 6 mph SSW 46%
6 PM 35° Clear 3% 6 mph SSW 50%
7 PM 34° Clear 3% 6 mph SSW 54%
8 PM 33° Clear 3% 6 mph SSW 57%
9 PM 31° Clear 3% 6 mph S 60%
10 PM 30° Clear 3% 6 mph SSW 62%
15-Day Forecast
Today
8/31
Clear
3%
21°
33°
Tue
9/1
Clear
3%
21°
37°
Wed
9/2
Clear
3%
22°
39°
Thu
9/3
Mostly Clear
38%
22°
39°
Fri
9/4
Clear
39%
23°
40°
Sat
9/5
Drizzle
60%
23°
41°
Sun
9/6
Clear
19%
21°
39°
Mon
9/7
Clear
19%
17°
38°
Tue
9/8
Drizzle
60%
21°
39°
Wed
9/9
Drizzle
60%
20°
40°
Thu
9/10
Drizzle
60%
18°
37°
Fri
9/11
Drizzle
60%
20°
36°
Sat
9/12
Drizzle
60%
18°
34°
Sun
9/13
Drizzle
60%
17°
32°
Mon
9/14
Drizzle
60%
17°
32°
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 11.4 µg/m³
O3
Ground-level ozone
50 AQI 54 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 55 Moderate 50 55
Wed 53 Moderate 48 53
Thu 50 Good 44 50
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 LCL0°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
SBCAPE0 J/kg
MLCAPE24 J/kg
MUCAPE243 J/kg
SBCIN—
MLCIN0 J/kg
Lifted Index0.9
Kinematics
0–6 km Shear11 kt
0–1 km Shear7 kt
Eff. Shear—
0–1 km SRH14
0–3 km SRH39
Eff. SRH—
Storm Motion6° @ 12 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index-0.7
Thermo & Levels
PWAT1.10 in
0–3 km LR3.4 °C/km
700–500 LR7.6 °C/km
Total Totals43.6
LCL912 hPa
LFC—
EL—
Freezing Lvl16,033 ft