Flood Warning — Pike County, IL, Scott County, IL, Calhoun County, IL, Greene County, IL, Jersey County, IL Flood Warning — Calhoun County, IL, Greene County, IL, Jersey County, IL, Pike County, IL, Scott County, IL Flood Warning — Brown County, IL, Pike County, IL, Scott County, IL, Calhoun County, IL, Greene County, IL, Jersey County, IL, Morgan County, IL Flood Warning — Morgan County, IL, Pike County, IL, Brown County, IL, Scott County, IL, Calhoun County, IL, Greene County, IL, Jersey County, IL Flood Warning — Pike County, MO, Morgan County, IL, Pike County, IL, Brown County, IL, Scott County, IL, Calhoun County, IL, Greene County, IL, Jersey County, IL 8:12 AM

Calhoun County, Illinois, United States

Last updated: 4:54 PM CDT  ·  Refresh
26°C
Feels like 27°
Partly Cloudy
▲ 27°  /  ▼ 16°
Wind
2 mph ENE
Humidity
53%
Dew Point
15°
Pressure
29.52 inHg
Visibility
10 mi
UV Index
6.9
Cloud Cover
39%
Sunrise
5:37 AM
Sunset
8:32 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Calhoun County is currently partly cloudy at 26°C. Precipitation is likely — peak probability 54% around 4 PM. Atmospheric instability is elevated (CAPE up to 1193 J/kg) — isolated convective development possible. Sunrise: 5:37AM · Sunset: 8:32PM.

Alerts

Flood Warning
Pike County, IL, Scott County, IL, Calhoun County, IL, Greene County, IL, Jersey County, IL
Expires
Flood Warning
Calhoun County, IL, Greene County, IL, Jersey County, IL, Pike County, IL, Scott County, IL
Expires
Flood Warning
Brown County, IL, Pike County, IL, Scott County, IL, Calhoun County, IL, Greene County, IL, Jersey County, IL, Morgan County, IL
Expires
Flood Warning
Morgan County, IL, Pike County, IL, Brown County, IL, Scott County, IL, Calhoun County, IL, Greene County, IL, Jersey County, IL
Expires
Flood Warning
Pike County, MO, Morgan County, IL, Pike County, IL, Brown County, IL, Scott County, IL, Calhoun County, IL, Greene County, IL, Jersey County, IL
Expires 8:12 AM
40 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
26°
3%
5 PM
27°
23%
6 PM
26°
23%
7 PM
24°
23%
8 PM
23°
23%
9 PM
21°
23%
10 PM
21°
25%
11 PM
21°
25%
12 AM
20°
19%
1 AM
19°
8%
2 AM
19°
8%
3 AM
19°
9%
4 AM
19°
9%
5 AM
18°
9%
6 AM
18°
9%
7 AM
19°
25%
8 AM
20°
25%
9 AM
22°
26%
10 AM
22°
37%
11 AM
23°
42%
12 PM
23°
43%
1 PM
27°
46%
2 PM
27°
47%
3 PM
27°
47%
7-Day Forecast
Today
27° 16°
Rain, 25% chance.
Wed
27° 18°
Rain, 54% chance.
Thu
30° 19°
Rain, 84% chance.
Fri
29° 19°
Heavy Rain, 90% chance.
Sat
33° 22°
Drizzle, 62% chance.
Sun
36° 23°
Clear with a 29% chance of rain.
Mon
36° 23°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 26° Partly Cloudy 3% 2 mph ENE 53%
5 PM 27° Mostly Cloudy 23% 4 mph E 57%
6 PM 26° Rain 23% 4 mph ESE 61%
7 PM 24° Rain 23% 4 mph ESE 66%
8 PM 23° Rain 23% 4 mph ESE 70%
9 PM 21° Rain 23% 4 mph E 73%
10 PM 21° Rain 25% 4 mph ESE 75%
11 PM 21° Rain 25% 4 mph SE 76%
12 AM 20° Drizzle 19% 5 mph SE 77%
1 AM 19° Partly Cloudy 8% 5 mph SE 77%
2 AM 19° Partly Cloudy 8% 5 mph SSE 78%
3 AM 19° Mostly Cloudy 9% 5 mph SSE 78%
4 AM 19° Mostly Cloudy 9% 5 mph SSE 78%
5 AM 18° Mostly Cloudy 9% 5 mph SSE 79%
6 AM 18° Mostly Cloudy 9% 6 mph SSE 79%
7 AM 19° Mostly Cloudy 25% 8 mph S 75%
8 AM 20° Mostly Cloudy 25% 8 mph S 74%
9 AM 22° Mostly Cloudy 26% 9 mph S 72%
10 AM 22° Drizzle 37% 8 mph S 72%
11 AM 23° Rain 42% 8 mph SSW 73%
12 PM 23° Rain 43% 8 mph SSW 74%
1 PM 27° Rain 46% 8 mph SSW 75%
2 PM 27° Rain 47% 8 mph SSW 77%
3 PM 27° Rain 47% 8 mph SW 78%
15-Day Forecast
Today
6/23
Rain
25%
16°
27°
Wed
6/24
Rain
54%
18°
27°
Thu
6/25
Rain
84%
19°
30°
Fri
6/26
Heavy Rain
90%
19°
29°
Sat
6/27
Drizzle
62%
22°
33°
Sun
6/28
Clear
29%
23°
36°
Mon
6/29
Clear
14%
23°
36°
Tue
6/30
Clear
38%
24°
36°
Wed
7/1
Thunderstorm
66%
24°
36°
Thu
7/2
Drizzle
63%
24°
34°
Fri
7/3
Drizzle
63%
24°
31°
Sat
7/4
Drizzle
66%
22°
33°
Sun
7/5
Drizzle
66%
21°
32°
Mon
7/6
Drizzle
66%
21°
32°
Tue
7/7
Drizzle
66%
21°
32°
40
Good
U.S. Air Quality Index · Dominant: O3
50 100 150 200

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

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
13 AQI 2.3 µg/m³
O3
Ground-level ozone
Dominant
40 AQI 43 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Wed 40 Good 40 13
Thu 39 Good 39 31
Fri 43 Good 43 22
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 Jun 23, 20:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 70 80 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE48 J/kg
MLCAPE3 J/kg
MUCAPE48 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index2.1
Kinematics
0–6 km Shear30 kt
0–1 km Shear2 kt
Eff. Shear—
0–1 km SRH-9
0–3 km SRH-88
Eff. SRH—
Storm Motion247° @ 17 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index16.8
Thermo & Levels
PWAT1.09 in
0–3 km LR6.3 °C/km
700–500 LR5.8 °C/km
Total Totals37.6
LCL853 hPa
LFC1000 hPa
EL759 hPa
Freezing Lvl13,835 ft