Shelby County, Illinois, United States

Last updated: 1:04 PM CDT  ·  Refresh
27°C
Feels like 29°
Partly Cloudy
▲ 29°  /  ▼ 19°
Wind
7 mph NNW
Humidity
74%
Dew Point
22°
Pressure
29.33 inHg
Visibility
10 mi
UV Index
8.6
Cloud Cover
53%
Sunrise
5:34 AM
Sunset
8:25 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Shelby County is currently partly cloudy at 27°C. Precipitation is likely — peak probability 56% around 1 PM. Atmospheric instability is elevated (CAPE up to 1387 J/kg) — isolated convective development possible. Sunrise: 5:34AM · Sunset: 8:25PM.

Alerts

No active alerts for this location.
38 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
27°
26%
2 PM
28°
42%
3 PM
28°
27%
4 PM
28°
21%
5 PM
29°
25%
6 PM
28°
26%
7 PM
28°
27%
8 PM
26°
28%
9 PM
24°
28%
10 PM
23°
21%
11 PM
23°
14%
12 AM
22°
14%
1 AM
21°
7%
2 AM
21°
8%
3 AM
20°
8%
4 AM
20°
17%
5 AM
19°
21%
6 AM
19°
21%
7 AM
19°
22%
8 AM
20°
28%
9 AM
22°
34%
10 AM
23°
34%
11 AM
24°
50%
12 PM
25°
55%
7-Day Forecast
Today
29° 19°
Partly Cloudy with a 27% chance of rain.
Mon
27° 19°
Rain, 56% chance.
Tue
29° 18°
Mostly Clear.
Wed
30° 18°
Mostly Clear with a 55% chance of rain.
Thu
29° 21°
Thunderstorm, 90% chance.
Fri
29° 21°
Rain, 71% chance.
Sat
28° 19°
Rain, 42% chance.
TimeTempConditionsPrecipWindHumidity
Now 27° Partly Cloudy 26% 7 mph NNW 74%
2 PM 28° Mostly Cloudy 42% 6 mph NNW 72%
3 PM 28° Overcast 27% 7 mph NNW 71%
4 PM 28° Partly Cloudy 21% 8 mph NNW 70%
5 PM 29° Mostly Cloudy 25% 7 mph NNW 72%
6 PM 28° Mostly Cloudy 26% 8 mph NNW 74%
7 PM 28° Partly Cloudy 27% 8 mph N 77%
8 PM 26° Mostly Clear 28% 7 mph N 84%
9 PM 24° Mostly Clear 28% 6 mph NNE 89%
10 PM 23° Clear 21% 6 mph NNE 94%
11 PM 23° Mostly Clear 14% 6 mph NNE 95%
12 AM 22° Mostly Clear 14% 5 mph NNE 96%
1 AM 21° Partly Cloudy 7% 5 mph NNE 97%
2 AM 21° Partly Cloudy 8% 6 mph NNE 97%
3 AM 20° Partly Cloudy 8% 6 mph NNE 98%
4 AM 20° Fog 17% 6 mph NNE 97%
5 AM 19° Partly Cloudy 21% 6 mph N 97%
6 AM 19° Partly Cloudy 21% 6 mph N 96%
7 AM 19° Mostly Cloudy 22% 7 mph N 95%
8 AM 20° Partly Cloudy 28% 7 mph N 93%
9 AM 22° Partly Cloudy 34% 6 mph N 90%
10 AM 23° Partly Cloudy 34% 6 mph N 87%
11 AM 24° Mostly Cloudy 50% 7 mph N 84%
12 PM 25° Mostly Cloudy 55% 7 mph N 82%
15-Day Forecast
Today
7/5
Partly Cloudy
27%
19°
29°
Mon
7/6
Rain
56%
19°
27°
Tue
7/7
Mostly Clear
13%
18°
29°
Wed
7/8
Mostly Clear
55%
18°
30°
Thu
7/9
Thunderstorm
90%
21°
29°
Fri
7/10
Rain
71%
21°
29°
Sat
7/11
Rain
42%
19°
28°
Sun
7/12
Rain
63%
20°
30°
Mon
7/13
Thunderstorm
44%
20°
30°
Tue
7/14
Thunderstorm
36%
21°
32°
Wed
7/15
Thunderstorm
60%
21°
29°
Thu
7/16
Drizzle
60%
20°
29°
Fri
7/17
Rain
90%
19°
28°
Sat
7/18
Drizzle
60%
19°
29°
Sun
7/19
Drizzle
60%
20°
29°
38
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
38 AQI 7.0 µg/m³
O3
Ground-level ozone
35 AQI 39 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Mon 38 Good 35 38
Tue 46 Good 37 46
Wed 54 Moderate 40 54
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 5, 15:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE1570 J/kg
MLCAPE640 J/kg
MUCAPE1570 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index-6.7
Kinematics
0–6 km Shear26 kt
0–1 km Shear3 kt
Eff. Shear26 kt
0–1 km SRH0
0–3 km SRH-51
Eff. SRH-51
Storm Motion202° @ 15 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index30.3
Thermo & Levels
PWAT1.76 in
0–3 km LR6.4 °C/km
700–500 LR6.5 °C/km
Total Totals46.1
LCL918 hPa
LFC993 hPa
EL199 hPa
Freezing Lvl13,642 ft