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

Shelby County, Missouri, United States

Last updated: 7:44 AM CDT  ·  Refresh
27°C
Feels like 32°
Mostly Cloudy
▲ 38°  /  ▼ 25°
Wind
4 mph WSW
Humidity
93%
Dew Point
25°
Pressure
29.13 inHg
Visibility
8 mi
UV Index
3.1
Cloud Cover
75%
Sunrise
6:01 AM
Sunset
8:27 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Shelby County is currently mostly cloudy at 26°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 4416 J/kg) — isolated convective development possible. Sunrise: 6:01AM · Sunset: 8:27PM.

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
55 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
27°
11%
8 AM
28°
29%
9 AM
31°
21%
10 AM
32°
14%
11 AM
33°
14%
12 PM
35°
14%
1 PM
37°
15%
2 PM
37°
15%
3 PM
38°
15%
4 PM
37°
7%
5 PM
36°
8%
6 PM
34°
3%
7 PM
33°
3%
8 PM
31°
5%
9 PM
29°
5%
10 PM
29°
5%
11 PM
28°
5%
12 AM
28°
5%
1 AM
27°
14%
2 AM
27°
18%
3 AM
27°
18%
4 AM
26°
18%
5 AM
26°
18%
6 AM
26°
18%
7-Day Forecast
Today
38° 25°
Partly Cloudy.
Mon
38° 25°
Mostly Clear with a 30% chance of rain.
Tue
35° 22°
Partly Cloudy with a 28% chance of rain.
Wed
33° 19°
Mostly Clear with a 32% chance of rain.
Thu
33° 19°
Rain, 64% chance.
Fri
31° 21°
Rain, 82% chance.
Sat
32° 19°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 27° Mostly Cloudy 11% 4 mph WSW 93%
8 AM 28° Mostly Cloudy 29% 6 mph WSW 85%
9 AM 31° Partly Cloudy 21% 7 mph WSW 77%
10 AM 32° Partly Cloudy 14% 8 mph WSW 70%
11 AM 33° Partly Cloudy 14% 9 mph WSW 64%
12 PM 35° Partly Cloudy 14% 9 mph WSW 58%
1 PM 37° Mostly Clear 15% 10 mph WSW 54%
2 PM 37° Mostly Clear 15% 10 mph WSW 51%
3 PM 38° Partly Cloudy 15% 10 mph WSW 48%
4 PM 37° Partly Cloudy 7% 9 mph WSW 50%
5 PM 36° Partly Cloudy 8% 6 mph WSW 55%
6 PM 34° Partly Cloudy 3% 6 mph SW 60%
7 PM 33° Mostly Clear 3% 6 mph SSW 62%
8 PM 31° Mostly Clear 5% 5 mph SSW 64%
9 PM 29° Partly Cloudy 5% 6 mph SSW 65%
10 PM 29° Partly Cloudy 5% 7 mph SSW 68%
11 PM 28° Partly Cloudy 5% 7 mph SW 72%
12 AM 28° Partly Cloudy 5% 7 mph SW 76%
1 AM 27° Partly Cloudy 14% 7 mph SW 76%
2 AM 27° Partly Cloudy 18% 7 mph SW 76%
3 AM 27° Mostly Cloudy 18% 7 mph SW 75%
4 AM 26° Mostly Cloudy 18% 7 mph SW 76%
5 AM 26° Rain 18% 7 mph SW 78%
6 AM 26° Thunderstorm 18% 8 mph SW 80%
15-Day Forecast
Today
7/26
Partly Cloudy
15%
25°
38°
Mon
7/27
Mostly Clear
30%
25°
38°
Tue
7/28
Partly Cloudy
28%
22°
35°
Wed
7/29
Mostly Clear
32%
19°
33°
Thu
7/30
Rain
64%
19°
33°
Fri
7/31
Rain
82%
21°
31°
Sat
8/1
Clear
17%
19°
32°
Sun
8/2
Drizzle
42%
18°
32°
Mon
8/3
Drizzle
44%
19°
34°
Tue
8/4
Clear
44%
21°
36°
Wed
8/5
Drizzle
60%
21°
36°
Thu
8/6
Drizzle
60%
20°
34°
Fri
8/7
Drizzle
60%
20°
34°
Sat
8/8
Drizzle
60%
21°
36°
Sun
8/9
Drizzle
60%
21°
36°
55
Moderate
U.S. Air Quality Index · Dominant: PM2.5
50 100 150 200

Air quality is acceptable. Unusually sensitive people should consider limiting prolonged outdoor exertion.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
Dominant
55 AQI 11.2 µg/m³
O3
Ground-level ozone
44 AQI 48 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Mon 55 Moderate 44 55
Tue 51 Moderate 38 51
Wed 48 Good 43 48
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 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE3137 J/kg
MLCAPE2886 J/kg
MUCAPE3800 J/kg
SBCIN-254 J/kg
MLCIN0 J/kg
Lifted Index-6.2
Kinematics
0–6 km Shear19 kt
0–1 km Shear16 kt
Eff. Shear17 kt
0–1 km SRH-19
0–3 km SRH-2
Eff. SRH13
Storm Motion265° @ 18 kt
0–1 km EHI-0.4
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.4
K-Index27.8
Thermo & Levels
PWAT1.62 in
0–3 km LR4.7 °C/km
700–500 LR6.3 °C/km
Total Totals45.8
LCL969 hPa
LFC722 hPa
EL154 hPa
Freezing Lvl16,112 ft