Fayette County, Illinois, United States

Last updated: 3:58 PM CDT  ·  Refresh
30°C
Feels like 32°
Mostly Cloudy
▲ 31°  /  ▼ 19°
Wind
7 mph SSW
Humidity
56%
Dew Point
19°
Pressure
29.47 inHg
Visibility
10 mi
UV Index
6.2
Cloud Cover
65%
Sunrise
6:00 AM
Sunset
8:03 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Fayette County is currently mostly cloudy at 30°C. Precipitation is likely — peak probability 90% around 5 AM. Atmospheric instability is elevated (CAPE up to 781 J/kg) — isolated convective development possible. Sunrise: 6:00AM · Sunset: 8:03PM.

Alerts

No active alerts for this location.
52 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
30°
8%
4 PM
31°
21%
5 PM
30°
21%
6 PM
29°
24%
7 PM
27°
26%
8 PM
26°
31%
9 PM
24°
40%
10 PM
24°
40%
11 PM
23°
46%
12 AM
23°
50%
1 AM
22°
75%
2 AM
22°
75%
3 AM
22°
76%
4 AM
20°
85%
5 AM
20°
90%
6 AM
19°
90%
7 AM
20°
90%
8 AM
21°
90%
9 AM
21°
86%
10 AM
23°
76%
11 AM
23°
72%
12 PM
23°
53%
1 PM
24°
53%
2 PM
24°
42%
7-Day Forecast
Today
31° 19°
Mostly Cloudy with a 40% chance of rain.
Thu
28° 19°
Rain, 90% chance.
Fri
32° 21°
Partly Cloudy with a 54% chance of rain.
Sat
31° 19°
Rain, 64% chance.
Sun
33° 23°
Clear.
Mon
33° 21°
Thunderstorm, 81% chance.
Tue
32° 21°
Thunderstorm, 90% chance.
TimeTempConditionsPrecipWindHumidity
Now 30° Mostly Cloudy 8% 7 mph SSW 56%
4 PM 31° Mostly Cloudy 21% 6 mph SSW 59%
5 PM 30° Mostly Cloudy 21% 5 mph S 64%
6 PM 29° Overcast 24% 4 mph S 69%
7 PM 27° Partly Cloudy 26% 4 mph SE 72%
8 PM 26° Partly Cloudy 31% 5 mph SE 75%
9 PM 24° Mostly Cloudy 40% 4 mph SE 78%
10 PM 24° Mostly Cloudy 40% 5 mph SE 79%
11 PM 23° Partly Cloudy 46% 5 mph SSE 80%
12 AM 23° Partly Cloudy 50% 5 mph SSE 82%
1 AM 22° Mostly Cloudy 75% 4 mph S 84%
2 AM 22° Mostly Cloudy 75% 6 mph S 87%
3 AM 22° Rain 76% 6 mph S 88%
4 AM 20° Rain 85% 6 mph WSW 92%
5 AM 20° Rain 90% 10 mph W 95%
6 AM 19° Rain 90% 10 mph WSW 97%
7 AM 20° Rain 90% 8 mph WSW 96%
8 AM 21° Rain 90% 7 mph SW 96%
9 AM 21° Rain 86% 9 mph SSW 94%
10 AM 23° Rain 76% 10 mph S 94%
11 AM 23° Rain 72% 10 mph SSE 93%
12 PM 23° Rain 53% 11 mph SSE 92%
1 PM 24° Overcast 53% 10 mph SSE 89%
2 PM 24° Mostly Cloudy 42% 10 mph SSE 86%
15-Day Forecast
Today
8/5
Mostly Cloudy
40%
19°
31°
Thu
8/6
Rain
90%
19°
28°
Fri
8/7
Partly Cloudy
54%
21°
32°
Sat
8/8
Rain
64%
19°
31°
Sun
8/9
Clear
19%
23°
33°
Mon
8/10
Thunderstorm
81%
21°
33°
Tue
8/11
Thunderstorm
90%
21°
32°
Wed
8/12
Drizzle
68%
19°
29°
Thu
8/13
Drizzle
60%
18°
33°
Fri
8/14
Drizzle
60%
18°
28°
Sat
8/15
Drizzle
60%
20°
29°
Sun
8/16
Drizzle
60%
19°
29°
Mon
8/17
Clear
25%
18°
29°
Tue
8/18
Clear
60%
19°
30°
Wed
8/19
Drizzle
60%
20°
31°
52
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
52 AQI 9.6 µg/m³
O3
Ground-level ozone
39 AQI 42 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Thu 52 Moderate 39 52
Fri 52 Moderate 33 52
Sat 47 Good 35 47
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 Wed Aug 5, 18:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE712 J/kg
MLCAPE98 J/kg
MUCAPE712 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index-2.7
Kinematics
0–6 km Shear20 kt
0–1 km Shear1 kt
Eff. Shear20 kt
0–1 km SRH-2
0–3 km SRH-47
Eff. SRH-47
Storm Motion218° @ 21 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index30.8
Thermo & Levels
PWAT1.65 in
0–3 km LR6.7 °C/km
700–500 LR6.2 °C/km
Total Totals42.9
LCL853 hPa
LFC998 hPa
EL223 hPa
Freezing Lvl14,705 ft