Flood Watch 9:00 AM Flood Watch 4:00 PM Flood Warning — Des Moines County, IA, Louisa County, IA, Henderson County, IL, Mercer County, IL 7:00 PM Flood Warning — Des Moines County, IA, Lee County, IA, Hancock County, IL, Henderson County, IL 1:00 AM Flood Warning — Des Moines County, IA, Henderson County, IL 9:00 AM

Henderson County, Illinois, United States

Last updated: 8:32 PM CDT  ·  Refresh
15°C
Feels like 13°
Mostly Cloudy
▲ 17°  /  ▼ 10°
Wind
8 mph ENE
Humidity
79%
Dew Point
11°
Pressure
29.55 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
71%
Sunrise
6:51 AM
Sunset
7:00 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Henderson County is currently mostly cloudy at 15°C. Dry conditions are expected through the next 24 hours. Sunrise: 6:51AM · Sunset: 7:00PM.

Alerts

Flood Watch
Expires 9:00 AM
Flood Watch
Expires 4:00 PM
Flood Warning
Des Moines County, IA, Louisa County, IA, Henderson County, IL, Mercer County, IL
Expires 7:00 PM
Flood Warning
Des Moines County, IA, Lee County, IA, Hancock County, IL, Henderson County, IL
Expires 1:00 AM
Flood Warning
Des Moines County, IA, Henderson County, IL
Expires 9:00 AM
25 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
15°
11%
9 PM
14°
7%
10 PM
13°
7%
11 PM
13°
7%
12 AM
13°
3%
1 AM
12°
3%
2 AM
12°
3%
3 AM
12°
3%
4 AM
11°
3%
5 AM
11°
3%
6 AM
11°
3%
7 AM
11°
3%
8 AM
13°
3%
9 AM
14°
3%
10 AM
16°
14%
11 AM
17°
14%
12 PM
18°
14%
1 PM
20°
14%
2 PM
20°
15%
3 PM
21°
15%
4 PM
21°
3%
5 PM
20°
3%
6 PM
19°
3%
7 PM
19°
3%
7-Day Forecast
Tonight
17° 10°
Mostly Cloudy.
Wed
21° 10°
Mostly Cloudy.
Thu
23° 12°
Partly Cloudy.
Fri
23° 14°
Mostly Cloudy with a 28% chance of rain.
Sat
21° 14°
Clear with a 35% chance of rain.
Sun
24° 13°
Clear with a 35% chance of rain.
Mon
23° 13°
Clear with a 31% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 15° Mostly Cloudy 11% 8 mph ENE 79%
9 PM 14° Partly Cloudy 7% 8 mph ENE 79%
10 PM 13° Partly Cloudy 7% 8 mph NE 81%
11 PM 13° Mostly Cloudy 7% 8 mph NE 83%
12 AM 13° Mostly Cloudy 3% 8 mph ENE 85%
1 AM 12° Partly Cloudy 3% 7 mph NE 85%
2 AM 12° Mostly Clear 3% 5 mph NE 86%
3 AM 12° Mostly Clear 3% 6 mph NNE 87%
4 AM 11° Clear 3% 6 mph NNE 88%
5 AM 11° Clear 3% 6 mph NNE 89%
6 AM 11° Clear 3% 6 mph NNE 90%
7 AM 11° Mostly Clear 3% 7 mph NE 89%
8 AM 13° Partly Cloudy 3% 7 mph NE 85%
9 AM 14° Partly Cloudy 3% 8 mph NE 80%
10 AM 16° Partly Cloudy 14% 9 mph NE 77%
11 AM 17° Partly Cloudy 14% 9 mph NE 74%
12 PM 18° Overcast 14% 9 mph ENE 70%
1 PM 20° Mostly Cloudy 14% 9 mph NE 68%
2 PM 20° Overcast 15% 10 mph NE 68%
3 PM 21° Overcast 15% 10 mph NE 68%
4 PM 21° Overcast 3% 10 mph NE 70%
5 PM 20° Mostly Cloudy 3% 9 mph NE 72%
6 PM 19° Mostly Cloudy 3% 9 mph NE 74%
7 PM 19° Mostly Cloudy 3% 9 mph NE 77%
15-Day Forecast
Today
9/22
Mostly Cloudy
11%
10°
17°
Wed
9/23
Mostly Cloudy
15%
10°
21°
Thu
9/24
Partly Cloudy
8%
12°
23°
Fri
9/25
Mostly Cloudy
28%
14°
23°
Sat
9/26
Clear
35%
14°
21°
Sun
9/27
Clear
35%
13°
24°
Mon
9/28
Clear
31%
13°
23°
Tue
9/29
Rain
90%
14°
26°
Wed
9/30
Rain
69%
12°
21°
Thu
10/1
Drizzle
44%
11°
21°
Fri
10/2
Drizzle
36%
9°
22°
Sat
10/3
Drizzle
60%
13°
24°
Sun
10/4
Drizzle
60%
11°
21°
Mon
10/5
Drizzle
60%
11°
21°
Tue
10/6
Drizzle
60%
11°
22°
25
Good
U.S. Air Quality Index · Dominant: O3
50 100 150 200

Air quality is satisfactory and poses little or no health risk.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
24 AQI 4.5 µg/m³
O3
Ground-level ozone
Dominant
25 AQI 27 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 25 Good 25 24
Thu 29 Good 29 26
Fri 26 Good 26 17
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 LCL0°C Temperature (°C) Pressure (hPa)
Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio
RAP
Valid Tue Sep 22, 23:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE0 J/kg
MLCAPE4 J/kg
MUCAPE0 J/kg
SBCIN—
MLCIN0 J/kg
Lifted Index9.5
Kinematics
0–6 km Shear19 kt
0–1 km Shear13 kt
Eff. Shear—
0–1 km SRH-41
0–3 km SRH4
Eff. SRH—
Storm Motion24° @ 21 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index21.6
Thermo & Levels
PWAT1.08 in
0–3 km LR4.4 °C/km
700–500 LR5.2 °C/km
Total Totals36.0
LCL948 hPa
LFC—
EL—
Freezing Lvl11,066 ft