Effingham County, Illinois, United States

Last updated: 7:11 PM CDT  ·  Refresh
27°C
Feels like 30°
Mostly Cloudy
▲ 32°  /  ▼ 20°
Wind
8 mph W
Humidity
82%
Dew Point
23°
Pressure
29.34 inHg
Visibility
10 mi
UV Index
2.0
Cloud Cover
78%
Sunrise
5:33 AM
Sunset
8:23 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Effingham County is currently mostly cloudy at 27°C. Precipitation is likely — peak probability 64% around 8 PM. Atmospheric instability is elevated (CAPE up to 1920 J/kg) — isolated convective development possible. Sunrise: 5:33AM · Sunset: 8:23PM.

Alerts

No active alerts for this location.
58 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
27°
51%
8 PM
26°
64%
9 PM
24°
53%
10 PM
24°
48%
11 PM
24°
48%
12 AM
23°
42%
1 AM
22°
33%
2 AM
22°
22%
3 AM
22°
32%
4 AM
22°
27%
5 AM
20°
27%
6 AM
20°
11%
7 AM
21°
11%
8 AM
22°
11%
9 AM
23°
8%
10 AM
24°
14%
11 AM
25°
14%
12 PM
26°
24%
1 PM
28°
24%
2 PM
28°
24%
3 PM
28°
25%
4 PM
28°
25%
5 PM
28°
29%
6 PM
28°
29%
7-Day Forecast
Tonight
32° 20°
Mostly Cloudy with a 51% chance of rain.
Sun
29° 20°
Mostly Cloudy with a 33% chance of rain.
Mon
28° 19°
Partly Cloudy with a 30% chance of rain.
Tue
29° 18°
Mostly Clear.
Wed
29° 18°
Mostly Cloudy.
Thu
29° 21°
Heavy Rain, 90% chance.
Fri
28° 20°
Thunderstorm, 90% chance.
TimeTempConditionsPrecipWindHumidity
Now 27° Mostly Cloudy 51% 8 mph W 82%
8 PM 26° Overcast 64% 7 mph WNW 88%
9 PM 24° Overcast 53% 4 mph NW 91%
10 PM 24° Mostly Cloudy 48% 4 mph W 93%
11 PM 24° Partly Cloudy 48% 5 mph W 94%
12 AM 23° Mostly Cloudy 42% 6 mph W 95%
1 AM 22° Mostly Cloudy 33% 6 mph W 96%
2 AM 22° Partly Cloudy 22% 5 mph W 96%
3 AM 22° Mostly Cloudy 32% 4 mph WNW 96%
4 AM 22° Partly Cloudy 27% 5 mph WNW 97%
5 AM 20° Partly Cloudy 27% 4 mph NW 96%
6 AM 20° Mostly Cloudy 11% 5 mph NNW 96%
7 AM 21° Fog 11% 6 mph NNW 94%
8 AM 22° Mostly Cloudy 11% 5 mph NNW 89%
9 AM 23° Mostly Cloudy 8% 6 mph NNW 85%
10 AM 24° Mostly Cloudy 14% 6 mph NNW 82%
11 AM 25° Mostly Cloudy 14% 6 mph NNW 78%
12 PM 26° Mostly Cloudy 24% 6 mph NNW 75%
1 PM 28° Mostly Cloudy 24% 6 mph NNW 72%
2 PM 28° Mostly Cloudy 24% 6 mph NNW 72%
3 PM 28° Mostly Cloudy 25% 6 mph NNW 70%
4 PM 28° Mostly Cloudy 25% 6 mph NNW 69%
5 PM 28° Mostly Cloudy 29% 7 mph NNW 73%
6 PM 28° Mostly Cloudy 29% 7 mph NNW 76%
15-Day Forecast
Today
7/4
Mostly Cloudy
51%
20°
32°
Sun
7/5
Mostly Cloudy
33%
20°
29°
Mon
7/6
Partly Cloudy
30%
19°
28°
Tue
7/7
Mostly Clear
14%
18°
29°
Wed
7/8
Mostly Cloudy
16%
18°
29°
Thu
7/9
Heavy Rain
90%
21°
29°
Fri
7/10
Thunderstorm
90%
20°
28°
Sat
7/11
Clear
17%
19°
27°
Sun
7/12
Drizzle
63%
17°
27°
Mon
7/13
Clear
44%
17°
27°
Tue
7/14
Drizzle
60%
18°
29°
Wed
7/15
Drizzle
60%
18°
29°
Thu
7/16
Drizzle
60%
18°
27°
Fri
7/17
Drizzle
60%
18°
27°
Sat
7/18
Drizzle
60%
18°
27°
58
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
58 AQI 12.6 µg/m³
O3
Ground-level ozone
36 AQI 40 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 58 Moderate 36 58
Mon 42 Good 37 42
Tue 55 Moderate 42 55
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
SBCAPE1818 J/kg
MLCAPE2468 J/kg
MUCAPE2767 J/kg
SBCIN-76 J/kg
MLCIN0 J/kg
Lifted Index-5.5
Kinematics
0–6 km Shear12 kt
0–1 km Shear10 kt
Eff. Shear11 kt
0–1 km SRH-38
0–3 km SRH-63
Eff. SRH-63
Storm Motion209° @ 15 kt
0–1 km EHI-0.4
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index37.6
Thermo & Levels
PWAT2.23 in
0–3 km LR6.0 °C/km
700–500 LR5.9 °C/km
Total Totals50.3
LCL933 hPa
LFC848 hPa
EL170 hPa
Freezing Lvl14,295 ft