Logan County, Illinois, United States

Last updated: 12:04 AM CDT  ·  Refresh
26°C
Feels like 27°
Clear
▲ 37°  /  ▼ 22°
Wind
9 mph SSW
Humidity
66%
Dew Point
20°
Pressure
29.34 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
1%
Sunrise
6:25 AM
Sunset
7:28 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Logan County is currently clear at 26°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1878 J/kg) — isolated convective development possible. Sunrise: 6:25AM · Sunset: 7:28PM.

Alerts

No active alerts for this location.
58 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
26°
3%
1 AM
26°
3%
2 AM
26°
3%
3 AM
25°
3%
4 AM
24°
3%
5 AM
23°
3%
6 AM
22°
3%
7 AM
22°
3%
8 AM
25°
3%
9 AM
28°
3%
10 AM
30°
3%
11 AM
32°
3%
12 PM
33°
3%
1 PM
36°
3%
2 PM
37°
3%
3 PM
37°
3%
4 PM
37°
3%
5 PM
37°
3%
6 PM
36°
3%
7 PM
34°
3%
8 PM
33°
3%
9 PM
31°
3%
10 PM
30°
3%
11 PM
28°
3%
7-Day Forecast
Today
37° 22°
Clear.
Wed
39° 22°
Clear.
Thu
39° 22°
Partly Cloudy.
Fri
39° 22°
Partly Cloudy.
Sat
40° 23°
Drizzle, 60% chance.
Sun
38° 21°
Clear with a 60% chance of rain.
Mon
37° 17°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 26° Clear 3% 9 mph SSW 66%
1 AM 26° Clear 3% 9 mph SSW 61%
2 AM 26° Clear 3% 9 mph SSW 63%
3 AM 25° Clear 3% 8 mph SSW 66%
4 AM 24° Clear 3% 8 mph SSW 68%
5 AM 23° Clear 3% 7 mph SSW 71%
6 AM 22° Clear 3% 7 mph SSW 73%
7 AM 22° Clear 3% 6 mph SSW 74%
8 AM 25° Clear 3% 7 mph SW 68%
9 AM 28° Clear 3% 8 mph WSW 60%
10 AM 30° Clear 3% 9 mph WSW 54%
11 AM 32° Clear 3% 8 mph WSW 50%
12 PM 33° Clear 3% 9 mph WSW 45%
1 PM 36° Clear 3% 9 mph W 40%
2 PM 37° Clear 3% 8 mph WSW 39%
3 PM 37° Clear 3% 6 mph WSW 37%
4 PM 37° Clear 3% 6 mph WSW 37%
5 PM 37° Clear 3% 6 mph SW 41%
6 PM 36° Clear 3% 6 mph SSW 47%
7 PM 34° Clear 3% 7 mph SSW 50%
8 PM 33° Clear 3% 7 mph SSW 53%
9 PM 31° Clear 3% 7 mph SSW 56%
10 PM 30° Clear 3% 7 mph SSW 58%
11 PM 28° Clear 3% 7 mph S 60%
15-Day Forecast
Today
9/1
Clear
3%
22°
37°
Wed
9/2
Clear
3%
22°
39°
Thu
9/3
Partly Cloudy
7%
22°
39°
Fri
9/4
Partly Cloudy
9%
22°
39°
Sat
9/5
Drizzle
60%
23°
40°
Sun
9/6
Clear
60%
21°
38°
Mon
9/7
Clear
19%
17°
37°
Tue
9/8
Drizzle
60%
19°
38°
Wed
9/9
Drizzle
60%
20°
38°
Thu
9/10
Drizzle
60%
18°
35°
Fri
9/11
Drizzle
60%
19°
34°
Sat
9/12
Drizzle
60%
17°
32°
Sun
9/13
Drizzle
60%
17°
31°
Mon
9/14
Drizzle
60%
17°
31°
Tue
9/15
Drizzle
60%
16°
28°
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 13.1 µg/m³
O3
Ground-level ozone
47 AQI 51 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 58 Moderate 47 58
Wed 60 Moderate 48 60
Thu 51 Moderate 42 51
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 Tue Sep 1, 03:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE69 J/kg
MLCAPE373 J/kg
MUCAPE739 J/kg
SBCIN-713 J/kg
MLCIN-404 J/kg
Lifted Index-0.7
Kinematics
0–6 km Shear22 kt
0–1 km Shear19 kt
Eff. Shear25 kt
0–1 km SRH161
0–3 km SRH154
Eff. SRH34
Storm Motion318° @ 14 kt
0–1 km EHI0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.3
K-Index34.4
Thermo & Levels
PWAT1.61 in
0–3 km LR4.5 °C/km
700–500 LR6.7 °C/km
Total Totals45.7
LCL905 hPa
LFC416 hPa
EL267 hPa
Freezing Lvl15,709 ft