Heat Advisory — Fulton, IL, Schuyler, IL, Mason, IL, Logan, IL, Cass, IL, Menard, IL, Scott, IL, Morgan, IL, Sangamon, IL, Christian, IL, Macon, IL, Moultrie, IL, Coles, IL, Shelby, IL, Cumberland, IL, Clark, IL, Effingham, IL, Jasper, IL, Crawford, IL, Clay, IL, Richland, IL, Lawrence, IL 8:00 PM

Cass County, Illinois, United States

Last updated: 5:11 AM CDT  ·  Refresh
25°C
Feels like 27°
Mostly Clear
▲ 36°  /  ▼ 23°
Wind
8 mph SSW
Humidity
79%
Dew Point
22°
Pressure
29.30 inHg
Visibility
9 mi
UV Index
0.0
Cloud Cover
24%
Sunrise
6:09 AM
Sunset
8:02 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Cass County is currently mostly clear at 25°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 3363 J/kg) — isolated convective development possible. Sunrise: 6:09AM · Sunset: 8:02PM.

Alerts

Heat Advisory
Fulton, IL, Schuyler, IL, Mason, IL, Logan, IL, Cass, IL, Menard, IL, Scott, IL, Morgan, IL, Sangamon, IL, Christian, IL, Macon, IL, Moultrie, IL, Coles, IL, Shelby, IL, Cumberland, IL, Clark, IL, Effingham, IL, Jasper, IL, Crawford, IL, Clay, IL, Richland, IL, Lawrence, IL
Expires 8:00 PM
47 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
25°
11%
6 AM
23°
27%
7 AM
24°
27%
8 AM
26°
27%
9 AM
27°
25%
10 AM
29°
25%
11 AM
30°
25%
12 PM
31°
26%
1 PM
33°
8%
2 PM
33°
16%
3 PM
34°
24%
4 PM
34°
32%
5 PM
34°
30%
6 PM
33°
31%
7 PM
32°
29%
8 PM
29°
30%
9 PM
28°
30%
10 PM
27°
22%
11 PM
26°
14%
12 AM
24°
14%
1 AM
24°
10%
2 AM
24°
19%
3 AM
24°
29%
4 AM
24°
42%
7-Day Forecast
Today
36° 23°
Partly Cloudy with a 30% chance of rain.
Wed
32° 23°
Mostly Cloudy with a 75% chance of rain.
Thu
32° 22°
Mostly Cloudy with a 83% chance of rain.
Fri
29° 20°
Overcast with a 77% chance of rain.
Sat
36° 22°
Partly Cloudy with a 27% chance of rain.
Sun
33° 19°
Drizzle, 46% chance.
Mon
31° 18°
Clear with a 39% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 25° Mostly Clear 11% 8 mph SSW 79%
6 AM 23° Partly Cloudy 27% 8 mph SSW 73%
7 AM 24° Partly Cloudy 27% 9 mph SW 72%
8 AM 26° Mostly Cloudy 27% 10 mph SW 68%
9 AM 27° Partly Cloudy 25% 11 mph SW 63%
10 AM 29° Partly Cloudy 25% 12 mph WSW 59%
11 AM 30° Partly Cloudy 25% 13 mph SW 55%
12 PM 31° Partly Cloudy 26% 14 mph SW 51%
1 PM 33° Partly Cloudy 8% 14 mph SW 47%
2 PM 33° Partly Cloudy 16% 14 mph WSW 46%
3 PM 34° Mostly Cloudy 24% 14 mph WSW 45%
4 PM 34° Mostly Cloudy 32% 13 mph WSW 45%
5 PM 34° Partly Cloudy 30% 12 mph WSW 48%
6 PM 33° Partly Cloudy 31% 10 mph WSW 52%
7 PM 32° Partly Cloudy 29% 8 mph WSW 57%
8 PM 29° Mostly Clear 30% 5 mph SW 64%
9 PM 28° Mostly Clear 30% 6 mph SSW 71%
10 PM 27° Clear 22% 7 mph SSE 78%
11 PM 26° Clear 14% 6 mph S 79%
12 AM 24° Mostly Clear 14% 6 mph S 80%
1 AM 24° Mostly Clear 10% 6 mph SSW 81%
2 AM 24° Mostly Clear 19% 5 mph SSW 82%
3 AM 24° Partly Cloudy 29% 5 mph S 83%
4 AM 24° Mostly Cloudy 42% 5 mph S 83%
15-Day Forecast
Today
8/11
Partly Cloudy
30%
23°
36°
Wed
8/12
Mostly Cloudy
75%
23°
32°
Thu
8/13
Mostly Cloudy
83%
22°
32°
Fri
8/14
Overcast
77%
20°
29°
Sat
8/15
Partly Cloudy
27%
22°
36°
Sun
8/16
Drizzle
46%
19°
33°
Mon
8/17
Clear
39%
18°
31°
Tue
8/18
Clear
34%
19°
34°
Wed
8/19
Mostly Cloudy
35%
21°
36°
Thu
8/20
Mostly Clear
35%
21°
38°
Fri
8/21
Drizzle
60%
19°
38°
Sat
8/22
Drizzle
60%
19°
33°
Sun
8/23
Drizzle
60%
19°
33°
Mon
8/24
Drizzle
60%
18°
31°
Tue
8/25
Drizzle
60%
18°
31°
47
Good
U.S. Air Quality Index · Dominant: PM2.5
50 100 150 200

Air quality is satisfactory and poses little or no health risk.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
Dominant
47 AQI 8.5 µg/m³
O3
Ground-level ozone
41 AQI 44 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 47 Good 41 47
Wed 38 Good 38 29
Thu 40 Good 40 34
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 Aug 11, 08:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE1719 J/kg
MLCAPE1867 J/kg
MUCAPE2535 J/kg
SBCIN-491 J/kg
MLCIN0 J/kg
Lifted Index-5.5
Kinematics
0–6 km Shear17 kt
0–1 km Shear25 kt
Eff. Shear15 kt
0–1 km SRH200
0–3 km SRH189
Eff. SRH21
Storm Motion312° @ 19 kt
0–1 km EHI2.2
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index29.1
Thermo & Levels
PWAT1.57 in
0–3 km LR4.2 °C/km
700–500 LR7.7 °C/km
Total Totals52.2
LCL952 hPa
LFC666 hPa
EL183 hPa
Freezing Lvl14,564 ft