Logan County, Illinois, United States

Last updated: 7:14 PM CDT  ·  Refresh
25°C
Feels like 28°
Mostly Cloudy
▲ 30°  /  ▼ 19°
Wind
8 mph NW
Humidity
91%
Dew Point
22°
Pressure
29.31 inHg
Visibility
10 mi
UV Index
2.2
Cloud Cover
77%
Sunrise
5:33 AM
Sunset
8:30 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Logan County is currently mostly cloudy at 25°C. Precipitation is likely — peak probability 60% around 7 PM. Atmospheric instability is elevated (CAPE up to 1549 J/kg) — isolated convective development possible. Sunrise: 5:33AM · Sunset: 8:30PM.

Alerts

No active alerts for this location.
57 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
25°
59%
8 PM
25°
45%
9 PM
23°
38%
10 PM
23°
19%
11 PM
23°
19%
12 AM
22°
25%
1 AM
21°
19%
2 AM
21°
7%
3 AM
21°
8%
4 AM
21°
8%
5 AM
19°
8%
6 AM
19°
15%
7 AM
19°
19%
8 AM
21°
23%
9 AM
22°
23%
10 AM
23°
23%
11 AM
23°
19%
12 PM
24°
22%
1 PM
25°
22%
2 PM
26°
21%
3 PM
26°
12%
4 PM
26°
18%
5 PM
27°
14%
6 PM
27°
14%
7-Day Forecast
Tonight
30° 19°
Mostly Cloudy with a 59% chance of rain.
Sun
27° 19°
Mostly Cloudy with a 23% chance of rain.
Mon
28° 17°
Mostly Clear with a 26% chance of rain.
Tue
28° 17°
Partly Cloudy.
Wed
28° 18°
Partly Cloudy.
Thu
26° 19°
Heavy Rain, 90% chance.
Fri
27° 18°
Rain, 82% chance.
TimeTempConditionsPrecipWindHumidity
Now 25° Mostly Cloudy 59% 8 mph NW 91%
8 PM 25° Overcast 45% 6 mph N 93%
9 PM 23° Overcast 38% 4 mph N 94%
10 PM 23° Mostly Cloudy 19% 4 mph NNW 96%
11 PM 23° Overcast 19% 4 mph NW 96%
12 AM 22° Mostly Cloudy 25% 4 mph NW 97%
1 AM 21° Overcast 19% 4 mph NW 97%
2 AM 21° Mostly Cloudy 7% 4 mph NNW 97%
3 AM 21° Mostly Cloudy 8% 3 mph NNW 97%
4 AM 21° Overcast 8% 4 mph N 97%
5 AM 19° Overcast 8% 4 mph NNW 97%
6 AM 19° Overcast 15% 4 mph N 96%
7 AM 19° Fog 19% 5 mph N 95%
8 AM 21° Overcast 23% 5 mph N 92%
9 AM 22° Mostly Cloudy 23% 6 mph N 89%
10 AM 23° Mostly Cloudy 23% 6 mph N 85%
11 AM 23° Mostly Cloudy 19% 6 mph N 82%
12 PM 24° Mostly Cloudy 22% 5 mph N 79%
1 PM 25° Mostly Cloudy 22% 5 mph NNW 77%
2 PM 26° Mostly Cloudy 21% 6 mph N 76%
3 PM 26° Mostly Cloudy 12% 6 mph N 75%
4 PM 26° Mostly Cloudy 18% 7 mph N 76%
5 PM 27° Mostly Cloudy 14% 7 mph N 79%
6 PM 27° Mostly Cloudy 14% 8 mph N 82%
15-Day Forecast
Today
7/4
Mostly Cloudy
59%
19°
30°
Sun
7/5
Mostly Cloudy
23%
19°
27°
Mon
7/6
Mostly Clear
26%
17°
28°
Tue
7/7
Partly Cloudy
14%
17°
28°
Wed
7/8
Partly Cloudy
16%
18°
28°
Thu
7/9
Heavy Rain
90%
19°
26°
Fri
7/10
Rain
82%
18°
27°
Sat
7/11
Clear
53%
17°
25°
Sun
7/12
Drizzle
63%
15°
26°
Mon
7/13
Mostly Clear
36%
16°
27°
Tue
7/14
Drizzle
60%
17°
28°
Wed
7/15
Drizzle
60%
17°
28°
Thu
7/16
Drizzle
60%
17°
24°
Fri
7/17
Drizzle
60%
17°
24°
Sat
7/18
Drizzle
60%
17°
26°
57
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
57 AQI 12.1 µg/m³
O3
Ground-level ozone
33 AQI 36 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 57 Moderate 33 57
Mon 45 Good 37 45
Tue 61 Moderate 36 61
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
SBCAPE1132 J/kg
MLCAPE1518 J/kg
MUCAPE1856 J/kg
SBCIN-19 J/kg
MLCIN0 J/kg
Lifted Index-4.7
Kinematics
0–6 km Shear16 kt
0–1 km Shear11 kt
Eff. Shear17 kt
0–1 km SRH-71
0–3 km SRH-105
Eff. SRH-105
Storm Motion229° @ 18 kt
0–1 km EHI-0.5
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index36.0
Thermo & Levels
PWAT2.01 in
0–3 km LR5.7 °C/km
700–500 LR5.9 °C/km
Total Totals49.1
LCL951 hPa
LFC848 hPa
EL193 hPa
Freezing Lvl14,482 ft