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: 11:29 PM CDT  ·  Refresh
25°C
Feels like 26°
Clear
▲ 33°  /  ▼ 21°
Wind
6 mph S
Humidity
67%
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 1806 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
24°
3%
3 AM
23°
3%
4 AM
22°
3%
5 AM
21°
3%
6 AM
21°
3%
7 AM
22°
3%
8 AM
25°
3%
9 AM
28°
3%
10 AM
31°
3%
11 AM
32°
3%
12 PM
33°
3%
1 PM
36°
3%
2 PM
37°
3%
3 PM
37°
3%
4 PM
37°
3%
5 PM
37°
3%
6 PM
36°
3%
7 PM
34°
3%
8 PM
34°
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°
Partly Cloudy with a 38% chance of rain.
Fri
41° 23°
Clear with a 39% chance of rain.
Sat
41° 23°
Drizzle, 60% chance.
Sun
38° 21°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 25° Clear 3% 6 mph S 66%
12 AM 24° Clear 3% 7 mph SSW 64%
1 AM 24° Clear 3% 7 mph SSW 69%
2 AM 24° Clear 3% 7 mph SSW 74%
3 AM 23° Clear 3% 6 mph SSW 78%
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 80%
7 AM 22° Clear 3% 7 mph SW 77%
8 AM 25° Clear 3% 8 mph SW 68%
9 AM 28° Clear 3% 9 mph SW 58%
10 AM 31° Clear 3% 10 mph WSW 51%
11 AM 32° Clear 3% 10 mph WSW 48%
12 PM 33° Clear 3% 9 mph WSW 45%
1 PM 36° Clear 3% 9 mph WSW 42%
2 PM 37° Clear 3% 8 mph SW 41%
3 PM 37° Clear 3% 8 mph SW 40%
4 PM 37° Clear 3% 7 mph SW 40%
5 PM 37° Clear 3% 7 mph SSW 44%
6 PM 36° Clear 3% 6 mph SSW 49%
7 PM 34° Clear 3% 6 mph SSW 52%
8 PM 34° Clear 3% 6 mph SSW 55%
9 PM 31° Clear 3% 6 mph SSW 58%
10 PM 30° Clear 3% 6 mph S 61%
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
Partly Cloudy
38%
22°
39°
Fri
9/4
Clear
39%
23°
41°
Sat
9/5
Drizzle
60%
23°
41°
Sun
9/6
Clear
19%
21°
38°
Mon
9/7
Clear
19%
17°
38°
Tue
9/8
Drizzle
60%
21°
39°
Wed
9/9
Drizzle
60%
20°
41°
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 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
SBCAPE0 J/kg
MLCAPE24 J/kg
MUCAPE243 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index1.0
Kinematics
0–6 km Shear12 kt
0–1 km Shear7 kt
Eff. Shear—
0–1 km SRH16
0–3 km SRH41
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
LCL908 hPa
LFC996 hPa
EL996 hPa
Freezing Lvl16,037 ft