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: 6:04 AM CDT  ·  Refresh
25°C
Feels like 27°
Partly Cloudy
▲ 36°  /  ▼ 23°
Wind
8 mph SSW
Humidity
77%
Dew Point
22°
Pressure
29.29 inHg
Visibility
9 mi
UV Index
0.0
Cloud Cover
30%
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 partly cloudy at 25°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 3445 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%
7 AM
24°
27%
8 AM
26°
27%
9 AM
27°
25%
10 AM
28°
25%
11 AM
29°
25%
12 PM
31°
25%
1 PM
33°
8%
2 PM
33°
16%
3 PM
33°
23%
4 PM
34°
32%
5 PM
34°
30%
6 PM
33°
30%
7 PM
32°
29%
8 PM
30°
29%
9 PM
28°
30%
10 PM
26°
22%
11 PM
26°
14%
12 AM
26°
14%
1 AM
24°
8%
2 AM
24°
19%
3 AM
24°
28%
4 AM
24°
38%
5 AM
23°
46%
7-Day Forecast
Today
36° 23°
Partly Cloudy with a 30% chance of rain.
Wed
32° 23°
Partly Cloudy with a 70% chance of rain.
Thu
32° 22°
Partly Cloudy with a 68% chance of rain.
Fri
29° 20°
Overcast with a 83% chance of rain.
Sat
36° 22°
Mostly Clear with a 41% chance of rain.
Sun
33° 19°
Thunderstorm, 46% chance.
Mon
31° 18°
Clear with a 41% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 25° Partly Cloudy 11% 8 mph SSW 77%
7 AM 24° Partly Cloudy 27% 8 mph SW 72%
8 AM 26° Mostly Cloudy 27% 10 mph SW 67%
9 AM 27° Mostly Cloudy 25% 11 mph SW 63%
10 AM 28° Partly Cloudy 25% 12 mph WSW 59%
11 AM 29° Partly Cloudy 25% 12 mph SW 55%
12 PM 31° Partly Cloudy 25% 14 mph SW 51%
1 PM 33° Partly Cloudy 8% 14 mph SW 47%
2 PM 33° Mostly Cloudy 16% 14 mph WSW 46%
3 PM 33° Partly Cloudy 23% 14 mph WSW 45%
4 PM 34° Partly Cloudy 32% 14 mph WSW 45%
5 PM 34° Partly Cloudy 30% 12 mph WSW 48%
6 PM 33° Partly Cloudy 30% 10 mph WSW 51%
7 PM 32° Partly Cloudy 29% 8 mph WSW 56%
8 PM 30° Partly Cloudy 29% 6 mph SW 63%
9 PM 28° Partly Cloudy 30% 6 mph SSW 70%
10 PM 26° Mostly Clear 22% 7 mph SSE 78%
11 PM 26° Partly Cloudy 14% 6 mph S 79%
12 AM 26° Partly Cloudy 14% 6 mph S 80%
1 AM 24° Partly Cloudy 8% 6 mph SSW 81%
2 AM 24° Partly Cloudy 19% 5 mph SSW 82%
3 AM 24° Mostly Cloudy 28% 5 mph S 82%
4 AM 24° Mostly Cloudy 38% 5 mph S 83%
5 AM 23° Partly Cloudy 46% 5 mph SSE 84%
15-Day Forecast
Today
8/11
Partly Cloudy
30%
23°
36°
Wed
8/12
Partly Cloudy
70%
23°
32°
Thu
8/13
Partly Cloudy
68%
22°
32°
Fri
8/14
Overcast
83%
20°
29°
Sat
8/15
Mostly Clear
41%
22°
36°
Sun
8/16
Thunderstorm
46%
19°
33°
Mon
8/17
Clear
41%
18°
31°
Tue
8/18
Clear
34%
19°
34°
Wed
8/19
Partly Cloudy
35%
21°
36°
Thu
8/20
Partly Cloudy
35%
21°
38°
Fri
8/21
Drizzle
60%
19°
37°
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, 09:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE1640 J/kg
MLCAPE1720 J/kg
MUCAPE1812 J/kg
SBCIN-486 J/kg
MLCIN0 J/kg
Lifted Index-5.6
Kinematics
0–6 km Shear17 kt
0–1 km Shear23 kt
Eff. Shear8 kt
0–1 km SRH169
0–3 km SRH151
Eff. SRH3
Storm Motion313° @ 18 kt
0–1 km EHI1.7
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index34.1
Thermo & Levels
PWAT1.61 in
0–3 km LR4.3 °C/km
700–500 LR7.6 °C/km
Total Totals53.0
LCL950 hPa
LFC671 hPa
EL184 hPa
Freezing Lvl14,367 ft