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: 10:18 AM CDT  ·  Refresh
31°C
Feels like 37°
Partly Cloudy
▲ 37°  /  ▼ 24°
Wind
4 mph SW
Humidity
75%
Dew Point
26°
Pressure
29.42 inHg
Visibility
10 mi
UV Index
7.8
Cloud Cover
43%
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 partly cloudy at 30°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 3940 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
31°
4%
11 AM
31°
26%
12 PM
33°
48%
1 PM
34°
30%
2 PM
36°
29%
3 PM
36°
22%
4 PM
37°
22%
5 PM
37°
32%
6 PM
36°
24%
7 PM
34°
19%
8 PM
33°
8%
9 PM
31°
21%
10 PM
30°
8%
11 PM
29°
8%
12 AM
28°
5%
1 AM
27°
5%
2 AM
27°
5%
3 AM
26°
5%
4 AM
26°
3%
5 AM
24°
3%
6 AM
24°
3%
7 AM
25°
3%
8 AM
26°
12%
9 AM
29°
16%
7-Day Forecast
Today
37° 24°
Partly Cloudy with a 30% chance of rain.
Mon
38° 24°
Clear with a 21% chance of rain.
Tue
36° 22°
Mostly Clear with a 42% chance of rain.
Wed
31° 18°
Clear with a 43% chance of rain.
Thu
31° 18°
Clear with a 64% chance of rain.
Fri
27° 19°
Drizzle, 64% chance.
Sat
30° 18°
Drizzle, 52% chance.
TimeTempConditionsPrecipWindHumidity
Now 31° Partly Cloudy 4% 4 mph SW 75%
11 AM 31° Partly Cloudy 26% 4 mph SW 70%
12 PM 33° Partly Cloudy 48% 4 mph WSW 64%
1 PM 34° Mostly Clear 30% 4 mph WSW 60%
2 PM 36° Mostly Clear 29% 4 mph SW 56%
3 PM 36° Mostly Clear 22% 5 mph WSW 53%
4 PM 37° Mostly Clear 22% 5 mph WSW 52%
5 PM 37° Partly Cloudy 32% 4 mph SW 56%
6 PM 36° Mostly Clear 24% 5 mph SW 61%
7 PM 34° Partly Cloudy 19% 7 mph WSW 66%
8 PM 33° Partly Cloudy 8% 5 mph WSW 68%
9 PM 31° Partly Cloudy 21% 5 mph WSW 70%
10 PM 30° Partly Cloudy 8% 4 mph SW 71%
11 PM 29° Partly Cloudy 8% 4 mph SW 73%
12 AM 28° Partly Cloudy 5% 5 mph SSW 74%
1 AM 27° Partly Cloudy 5% 5 mph SW 76%
2 AM 27° Partly Cloudy 5% 4 mph SSW 80%
3 AM 26° Mostly Clear 5% 4 mph S 84%
4 AM 26° Mostly Clear 3% 6 mph S 87%
5 AM 24° Mostly Clear 3% 6 mph S 87%
6 AM 24° Mostly Clear 3% 6 mph S 87%
7 AM 25° Mostly Clear 3% 6 mph S 85%
8 AM 26° Clear 12% 6 mph SSW 80%
9 AM 29° Clear 16% 6 mph SSW 74%
15-Day Forecast
Today
7/26
Partly Cloudy
30%
24°
37°
Mon
7/27
Clear
21%
24°
38°
Tue
7/28
Mostly Clear
42%
22°
36°
Wed
7/29
Clear
43%
18°
31°
Thu
7/30
Clear
64%
18°
31°
Fri
7/31
Drizzle
64%
19°
27°
Sat
8/1
Drizzle
52%
18°
30°
Sun
8/2
Drizzle
42%
19°
30°
Mon
8/3
Drizzle
44%
19°
32°
Tue
8/4
Drizzle
51%
21°
34°
Wed
8/5
Drizzle
60%
22°
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, 14:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE4136 J/kg
MLCAPE3399 J/kg
MUCAPE4136 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index-7.3
Kinematics
0–6 km Shear17 kt
0–1 km Shear8 kt
Eff. Shear22 kt
0–1 km SRH-18
0–3 km SRH-50
Eff. SRH-50
Storm Motion286° @ 18 kt
0–1 km EHI-0.5
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index38.4
Thermo & Levels
PWAT1.95 in
0–3 km LR6.2 °C/km
700–500 LR5.7 °C/km
Total Totals48.6
LCL932 hPa
LFC996 hPa
EL138 hPa
Freezing Lvl16,991 ft