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

Douglas County, Illinois, United States

Last updated: 11:46 PM CDT  ·  Refresh
24°C
Feels like 25°
Clear
▲ 32°  /  ▼ 21°
Wind
7 mph SSW
Humidity
65%
Dew Point
19°
Pressure
29.30 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
0%
Sunrise
6:20 AM
Sunset
7:25 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Douglas County is currently clear at 24°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2301 J/kg) — isolated convective development possible. Sunrise: 6:20AM · Sunset: 7:25PM.

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
57 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
24°
3%
12 AM
24°
3%
1 AM
24°
3%
2 AM
24°
3%
3 AM
24°
3%
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
30°
3%
11 AM
32°
3%
12 PM
33°
3%
1 PM
36°
3%
2 PM
36°
3%
3 PM
36°
3%
4 PM
36°
3%
5 PM
35°
3%
6 PM
33°
3%
7 PM
33°
3%
8 PM
32°
3%
9 PM
29°
3%
10 PM
29°
3%
7-Day Forecast
Tonight
32° 21°
Clear.
Tue
36° 22°
Clear.
Wed
39° 22°
Clear.
Thu
38° 22°
Mostly Clear with a 43% chance of rain.
Fri
38° 22°
Mostly Clear with a 39% chance of rain.
Sat
38° 22°
Clear.
Sun
36° 20°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 24° Clear 3% 7 mph SSW 65%
12 AM 24° Clear 3% 8 mph SSW 63%
1 AM 24° Clear 3% 8 mph SSW 66%
2 AM 24° Clear 3% 8 mph SSW 69%
3 AM 24° Clear 3% 8 mph SSW 72%
4 AM 23° Clear 3% 8 mph SSW 75%
5 AM 22° Clear 3% 8 mph SSW 77%
6 AM 22° Clear 3% 8 mph SW 78%
7 AM 23° Clear 3% 8 mph SW 74%
8 AM 26° Clear 3% 10 mph WSW 68%
9 AM 28° Clear 3% 10 mph WSW 62%
10 AM 30° Clear 3% 10 mph WSW 58%
11 AM 32° Clear 3% 9 mph WSW 54%
12 PM 33° Clear 3% 9 mph WSW 50%
1 PM 36° Clear 3% 8 mph WSW 47%
2 PM 36° Clear 3% 7 mph WSW 45%
3 PM 36° Clear 3% 6 mph WSW 43%
4 PM 36° Clear 3% 6 mph SW 46%
5 PM 35° Clear 3% 5 mph SW 52%
6 PM 33° Clear 3% 5 mph SSW 56%
7 PM 33° Clear 3% 6 mph SSW 60%
8 PM 32° Clear 3% 6 mph SSW 63%
9 PM 29° Clear 3% 6 mph SSW 66%
10 PM 29° Clear 3% 6 mph SSW 68%
15-Day Forecast
Today
8/31
Clear
3%
21°
32°
Tue
9/1
Clear
3%
22°
36°
Wed
9/2
Clear
14%
22°
39°
Thu
9/3
Mostly Clear
43%
22°
38°
Fri
9/4
Mostly Clear
39%
22°
38°
Sat
9/5
Clear
19%
22°
38°
Sun
9/6
Clear
19%
20°
36°
Mon
9/7
Clear
19%
17°
36°
Tue
9/8
Drizzle
60%
18°
37°
Wed
9/9
Drizzle
60%
19°
38°
Thu
9/10
Drizzle
60%
16°
35°
Fri
9/11
Drizzle
60%
19°
34°
Sat
9/12
Drizzle
60%
17°
32°
Sun
9/13
Drizzle
60%
17°
31°
Mon
9/14
Drizzle
60%
17°
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 12.1 µg/m³
O3
Ground-level ozone
46 AQI 51 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 57 Moderate 46 57
Wed 57 Moderate 46 57
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 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
MLCAPE19 J/kg
MUCAPE131 J/kg
SBCIN—
MLCIN0 J/kg
Lifted Index1.2
Kinematics
0–6 km Shear19 kt
0–1 km Shear10 kt
Eff. Shear—
0–1 km SRH43
0–3 km SRH55
Eff. SRH—
Storm Motion349° @ 13 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index28.8
Thermo & Levels
PWAT1.43 in
0–3 km LR3.7 °C/km
700–500 LR7.0 °C/km
Total Totals44.3
LCL912 hPa
LFC—
EL—
Freezing Lvl15,633 ft