Excessive Heat Warning — Buchanan, IA, Delaware, IA, Dubuque, IA, Benton, IA, Linn, IA, Jones, IA, Jackson, IA, Iowa, IA, Johnson, IA, Cedar, IA, Clinton, IA, Muscatine, IA, Scott, IA, Keokuk, IA, Washington, IA, Louisa, IA, Jefferson, IA, Henry, IA, Des Moines, IA, Van Buren, IA, Lee, IA, Whiteside, IL, Rock Island, IL, Henry, IL, Bureau, IL, Putnam, IL, Mercer, IL, Henderson, IL, Warren, IL, Hancock, IL, McDonough, IL, Scotland, MO, Clark, MO 9:00 PM Extreme Heat Watch 10:00 PM

McDonough County, Illinois, United States

Last updated: 7:44 AM CDT  ·  Refresh
24°C
Feels like 29°
Fog
▲ 34°  /  ▼ 24°
Wind
4 mph S
Humidity
96%
Dew Point
24°
Pressure
29.21 inHg
Visibility
0 mi
UV Index
2.7
Cloud Cover
83%
Sunrise
5:54 AM
Sunset
8:23 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: McDonough County is currently fog at 25°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 4262 J/kg) — isolated convective development possible. Sunrise: 5:54AM · Sunset: 8:23PM.

53 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
24°
30%
8 AM
25°
44%
9 AM
27°
33%
10 AM
28°
28%
11 AM
31°
14%
12 PM
33°
7%
1 PM
34°
3%
2 PM
34°
6%
3 PM
34°
6%
4 PM
34°
16%
5 PM
34°
16%
6 PM
33°
13%
7 PM
32°
13%
8 PM
30°
14%
9 PM
28°
14%
10 PM
28°
3%
11 PM
27°
3%
12 AM
26°
3%
1 AM
26°
3%
2 AM
25°
7%
3 AM
25°
8%
4 AM
25°
8%
5 AM
24°
8%
6 AM
24°
9%
7-Day Forecast
Today
34° 24°
Fog with a 30% chance of rain.
Mon
36° 24°
Mostly Clear with a 30% chance of rain.
Tue
31° 19°
Mostly Cloudy.
Wed
29° 18°
Partly Cloudy.
Thu
30° 17°
Clear.
Fri
28° 19°
Drizzle, 52% chance.
Sat
29° 18°
Clear with a 52% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 24° Fog 30% 4 mph S 96%
8 AM 25° Mostly Cloudy 44% 4 mph SSW 92%
9 AM 27° Mostly Cloudy 33% 4 mph SSE 88%
10 AM 28° Mostly Cloudy 28% 4 mph SSW 82%
11 AM 31° Mostly Cloudy 14% 5 mph SW 74%
12 PM 33° Partly Cloudy 7% 6 mph WSW 67%
1 PM 34° Partly Cloudy 3% 6 mph W 64%
2 PM 34° Partly Cloudy 6% 5 mph WSW 61%
3 PM 34° Partly Cloudy 6% 5 mph W 59%
4 PM 34° Partly Cloudy 16% 5 mph W 60%
5 PM 34° Partly Cloudy 16% 5 mph W 62%
6 PM 33° Mostly Clear 13% 5 mph W 64%
7 PM 32° Mostly Clear 13% 5 mph WSW 67%
8 PM 30° Mostly Clear 14% 5 mph SW 69%
9 PM 28° Mostly Clear 14% 6 mph SSW 72%
10 PM 28° Partly Cloudy 3% 5 mph SSW 73%
11 PM 27° Partly Cloudy 3% 6 mph SSW 75%
12 AM 26° Partly Cloudy 3% 6 mph SSW 77%
1 AM 26° Partly Cloudy 3% 6 mph SSW 79%
2 AM 25° Partly Cloudy 7% 6 mph SSW 80%
3 AM 25° Partly Cloudy 8% 7 mph S 81%
4 AM 25° Partly Cloudy 8% 6 mph SSE 81%
5 AM 24° Partly Cloudy 8% 6 mph SSE 81%
6 AM 24° Mostly Cloudy 9% 8 mph SSE 81%
15-Day Forecast
Today
7/26
Fog
30%
24°
34°
Mon
7/27
Mostly Clear
30%
24°
36°
Tue
7/28
Mostly Cloudy
14%
19°
31°
Wed
7/29
Partly Cloudy
7%
18°
29°
Thu
7/30
Clear
16%
17°
30°
Fri
7/31
Drizzle
52%
19°
28°
Sat
8/1
Clear
52%
18°
29°
Sun
8/2
Drizzle
42%
18°
30°
Mon
8/3
Clear
19%
18°
32°
Tue
8/4
Rain
64%
20°
33°
Wed
8/5
Drizzle
68%
19°
33°
Thu
8/6
Drizzle
60%
19°
31°
Fri
8/7
Drizzle
60%
18°
32°
Sat
8/8
Drizzle
60%
20°
34°
Sun
8/9
Drizzle
60%
20°
34°
53
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
53 AQI 10.2 µg/m³
O3
Ground-level ozone
36 AQI 39 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Mon 53 Moderate 36 53
Tue 52 Moderate 39 52
Wed 53 Moderate 38 53
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 26, 11:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE1970 J/kg
MLCAPE3599 J/kg
MUCAPE4869 J/kg
SBCIN-257 J/kg
MLCIN0 J/kg
Lifted Index-4.9
Kinematics
0–6 km Shear26 kt
0–1 km Shear14 kt
Eff. Shear29 kt
0–1 km SRH-5
0–3 km SRH-58
Eff. SRH-79
Storm Motion276° @ 21 kt
0–1 km EHI-0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index33.1
Thermo & Levels
PWAT1.91 in
0–3 km LR4.1 °C/km
700–500 LR6.5 °C/km
Total Totals48.4
LCL982 hPa
LFC701 hPa
EL175 hPa
Freezing Lvl15,794 ft