Excessive Heat Warning — Greene, IL, Macoupin, IL, Montgomery, IL, Bond, IL, Fayette, IL, Clinton, IL, Marion, IL, Washington, IL, Randolph, IL, Adams, IL, Brown, IL, Pike, IL, Calhoun, IL, Jersey, IL, Knox, MO, Lewis, MO, Shelby, MO, Marion, MO, Monroe, MO, Ralls, MO, Pike, MO, Montgomery, MO, Lincoln, MO, Gasconade, MO, Warren, MO, Franklin, MO, Crawford, MO, Washington, MO, St. Francois, MO, Ste. Genevieve, MO, Iron, MO, Madison, MO, Reynolds, MO 9:00 PM Excessive Heat Watch 7:00 PM

Randolph County, Illinois, United States

Last updated: 8:56 AM CDT  ·  Refresh
27°C
Feels like 32°
Mostly Cloudy
▲ 37°  /  ▼ 23°
Wind
3 mph NNW
Humidity
87%
Dew Point
25°
Pressure
29.42 inHg
Visibility
5 mi
UV Index
4.7
Cloud Cover
74%
Sunrise
5:57 AM
Sunset
8:13 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Randolph County is currently mostly cloudy at 27°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 3652 J/kg) — isolated convective development possible. Sunrise: 5:57AM · Sunset: 8:13PM.

Alerts

Excessive Heat Warning
Greene, IL, Macoupin, IL, Montgomery, IL, Bond, IL, Fayette, IL, Clinton, IL, Marion, IL, Washington, IL, Randolph, IL, Adams, IL, Brown, IL, Pike, IL, Calhoun, IL, Jersey, IL, Knox, MO, Lewis, MO, Shelby, MO, Marion, MO, Monroe, MO, Ralls, MO, Pike, MO, Montgomery, MO, Lincoln, MO, Gasconade, MO, Warren, MO, Franklin, MO, Crawford, MO, Washington, MO, St. Francois, MO, Ste. Genevieve, MO, Iron, MO, Madison, MO, Reynolds, MO
Expires 9:00 PM
Excessive Heat Watch
Expires 7:00 PM
48 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
27°
32%
9 AM
29°
48%
10 AM
31°
39%
11 AM
32°
31%
12 PM
33°
14%
1 PM
35°
26%
2 PM
36°
37%
3 PM
36°
37%
4 PM
35°
46%
5 PM
34°
47%
6 PM
32°
34%
7 PM
31°
34%
8 PM
30°
21%
9 PM
28°
11%
10 PM
27°
8%
11 PM
27°
8%
12 AM
27°
5%
1 AM
26°
5%
2 AM
26°
5%
3 AM
25°
5%
4 AM
25°
3%
5 AM
24°
3%
6 AM
24°
3%
7 AM
25°
5%
7-Day Forecast
Today
37° 23°
Partly Cloudy with a 47% chance of rain.
Mon
38° 23°
Partly Cloudy with a 21% chance of rain.
Tue
36° 22°
Partly Cloudy with a 42% chance of rain.
Wed
31° 18°
Mostly Clear with a 47% chance of rain.
Thu
32° 18°
Clear with a 30% chance of rain.
Fri
28° 19°
Rain, 64% chance.
Sat
30° 18°
Drizzle, 53% chance.
TimeTempConditionsPrecipWindHumidity
Now 27° Mostly Cloudy 32% 3 mph NNW 87%
9 AM 29° Mostly Cloudy 48% 7 mph NNW 80%
10 AM 31° Partly Cloudy 39% 6 mph WNW 73%
11 AM 32° Partly Cloudy 31% 5 mph W 67%
12 PM 33° Mostly Clear 14% 3 mph W 60%
1 PM 35° Mostly Clear 26% 4 mph WSW 57%
2 PM 36° Mostly Clear 37% 5 mph WSW 54%
3 PM 36° Mostly Clear 37% 6 mph SW 52%
4 PM 35° Mostly Cloudy 46% 5 mph SW 57%
5 PM 34° Mostly Cloudy 47% 8 mph WSW 63%
6 PM 32° Overcast 34% 7 mph WSW 70%
7 PM 31° Overcast 34% 4 mph SSW 74%
8 PM 30° Overcast 21% 4 mph SSW 78%
9 PM 28° Mostly Cloudy 11% 6 mph SSW 81%
10 PM 27° Partly Cloudy 8% 6 mph SSW 82%
11 PM 27° Partly Cloudy 8% 6 mph SSW 82%
12 AM 27° Partly Cloudy 5% 6 mph SW 82%
1 AM 26° Partly Cloudy 5% 5 mph SSW 83%
2 AM 26° Partly Cloudy 5% 5 mph SSW 85%
3 AM 25° Partly Cloudy 5% 6 mph S 86%
4 AM 25° Partly Cloudy 3% 5 mph S 87%
5 AM 24° Partly Cloudy 3% 6 mph SSE 88%
6 AM 24° Mostly Cloudy 3% 6 mph SSE 90%
7 AM 25° Mostly Cloudy 5% 6 mph SSE 86%
15-Day Forecast
Today
7/26
Partly Cloudy
47%
23°
37°
Mon
7/27
Partly Cloudy
21%
23°
38°
Tue
7/28
Partly Cloudy
42%
22°
36°
Wed
7/29
Mostly Clear
47%
18°
31°
Thu
7/30
Clear
30%
18°
32°
Fri
7/31
Rain
64%
19°
28°
Sat
8/1
Drizzle
53%
18°
30°
Sun
8/2
Drizzle
43%
19°
30°
Mon
8/3
Drizzle
44%
19°
32°
Tue
8/4
Drizzle
51%
21°
34°
Wed
8/5
Drizzle
60%
21°
34°
Thu
8/6
Drizzle
60%
21°
32°
Fri
8/7
Drizzle
60%
20°
32°
Sat
8/8
Drizzle
60%
20°
33°
Sun
8/9
Drizzle
60%
21°
34°
48
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
48 AQI 8.8 µg/m³
O3
Ground-level ozone
42 AQI 45 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Mon 48 Good 42 48
Tue 48 Good 34 48
Wed 44 Good 44 38
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 Sun Jul 26, 11:00'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
SBCAPE2678 J/kg
MLCAPE1908 J/kg
MUCAPE2678 J/kg
SBCIN-122 J/kg
MLCIN0 J/kg
Lifted Index-4.7
Kinematics
0–6 km Shear10 kt
0–1 km Shear12 kt
Eff. Shear21 kt
0–1 km SRH-7
0–3 km SRH-21
Eff. SRH-21
Storm Motion301° @ 20 kt
0–1 km EHI-0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index31.4
Thermo & Levels
PWAT1.73 in
0–3 km LR5.1 °C/km
700–500 LR5.7 °C/km
Total Totals46.2
LCL961 hPa
LFC741 hPa
EL157 hPa
Freezing Lvl16,873 ft