Shelby County, Illinois, United States

Last updated: 7:12 PM CDT  ·  Refresh
27°C
Feels like 30°
Mostly Cloudy
▲ 32°  /  ▼ 19°
Wind
9 mph NW
Humidity
84%
Dew Point
23°
Pressure
29.28 inHg
Visibility
10 mi
UV Index
2.0
Cloud Cover
78%
Sunrise
5:33 AM
Sunset
8:25 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Shelby County is currently mostly cloudy at 27°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1702 J/kg) — isolated convective development possible. Sunrise: 5:33AM · Sunset: 8:25PM.

Alerts

No active alerts for this location.
56 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
27°
34%
8 PM
26°
44%
9 PM
24°
44%
10 PM
24°
32%
11 PM
23°
33%
12 AM
23°
30%
1 AM
22°
26%
2 AM
22°
19%
3 AM
22°
23%
4 AM
21°
22%
5 AM
19°
12%
6 AM
19°
12%
7 AM
20°
12%
8 AM
21°
12%
9 AM
23°
12%
10 AM
23°
22%
11 AM
24°
24%
12 PM
24°
29%
1 PM
27°
32%
2 PM
27°
32%
3 PM
27°
32%
4 PM
27°
22%
5 PM
28°
24%
6 PM
27°
20%
7-Day Forecast
Tonight
32° 19°
Mostly Cloudy with a 34% chance of rain.
Sun
28° 19°
Mostly Cloudy with a 32% chance of rain.
Mon
28° 18°
Partly Cloudy with a 30% chance of rain.
Tue
28° 17°
Mostly Clear.
Wed
28° 18°
Mostly Cloudy.
Thu
28° 21°
Rain, 77% chance.
Fri
28° 19°
Rain, 82% chance.
TimeTempConditionsPrecipWindHumidity
Now 27° Mostly Cloudy 34% 9 mph NW 84%
8 PM 26° Mostly Cloudy 44% 6 mph NNW 89%
9 PM 24° Overcast 44% 4 mph N 91%
10 PM 24° Overcast 32% 4 mph SW 93%
11 PM 23° Overcast 33% 5 mph WSW 94%
12 AM 23° Overcast 30% 6 mph W 94%
1 AM 22° Mostly Cloudy 26% 5 mph WNW 95%
2 AM 22° Mostly Cloudy 19% 4 mph WNW 96%
3 AM 22° Mostly Cloudy 23% 4 mph WNW 96%
4 AM 21° Mostly Cloudy 22% 4 mph NW 96%
5 AM 19° Mostly Cloudy 12% 4 mph NW 96%
6 AM 19° Overcast 12% 4 mph NNW 95%
7 AM 20° Fog 12% 5 mph NNW 94%
8 AM 21° Overcast 12% 6 mph NNW 90%
9 AM 23° Mostly Cloudy 12% 6 mph NNW 87%
10 AM 23° Mostly Cloudy 22% 6 mph N 84%
11 AM 24° Mostly Cloudy 24% 6 mph N 81%
12 PM 24° Mostly Cloudy 29% 6 mph N 78%
1 PM 27° Mostly Cloudy 32% 6 mph NNW 76%
2 PM 27° Mostly Cloudy 32% 6 mph NNW 74%
3 PM 27° Mostly Cloudy 32% 7 mph NNW 71%
4 PM 27° Mostly Cloudy 22% 7 mph NNW 70%
5 PM 28° Mostly Cloudy 24% 7 mph NNW 74%
6 PM 27° Mostly Cloudy 20% 8 mph NNW 78%
15-Day Forecast
Today
7/4
Mostly Cloudy
34%
19°
32°
Sun
7/5
Mostly Cloudy
32%
19°
28°
Mon
7/6
Partly Cloudy
30%
18°
28°
Tue
7/7
Mostly Clear
14%
17°
28°
Wed
7/8
Mostly Cloudy
16%
18°
28°
Thu
7/9
Rain
77%
21°
28°
Fri
7/10
Rain
82%
19°
28°
Sat
7/11
Clear
53%
18°
27°
Sun
7/12
Drizzle
43%
17°
26°
Mon
7/13
Clear
44%
17°
27°
Tue
7/14
Drizzle
60%
17°
29°
Wed
7/15
Drizzle
60%
18°
29°
Thu
7/16
Drizzle
60%
17°
26°
Fri
7/17
Drizzle
60%
17°
26°
Sat
7/18
Drizzle
60%
18°
27°
56
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
56 AQI 12.1 µg/m³
O3
Ground-level ozone
31 AQI 35 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 56 Moderate 31 56
Mon 44 Good 34 44
Tue 56 Moderate 37 56
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 Sat Jul 4, 22:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE1688 J/kg
MLCAPE1992 J/kg
MUCAPE2179 J/kg
SBCIN-41 J/kg
MLCIN0 J/kg
Lifted Index-5.1
Kinematics
0–6 km Shear16 kt
0–1 km Shear14 kt
Eff. Shear16 kt
0–1 km SRH-32
0–3 km SRH-50
Eff. SRH-50
Storm Motion212° @ 13 kt
0–1 km EHI-0.3
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index37.3
Thermo & Levels
PWAT2.19 in
0–3 km LR6.1 °C/km
700–500 LR5.7 °C/km
Total Totals49.3
LCL931 hPa
LFC853 hPa
EL171 hPa
Freezing Lvl14,144 ft