Freeze Warning — Jefferson, IL, Wayne, IL, Perry, IL, Franklin, IL, Hamilton, IL, Jackson, IL, Williamson, IL, Saline, IL, Union, IL, Perry, MO, Bollinger, MO, Cape Girardeau, MO, Wayne, MO, Carter, MO, Ripley, MO, Butler, MO, Stoddard, MO 8:00 AM

Hamilton County, Illinois, United States

Last updated: 2:05 PM CDT  ·  Refresh
12°C
Feels like 7°
Partly Cloudy
▲ 12°  /  ▼ 1°
Wind
12 mph NNW
Humidity
54%
Dew Point
3°
Pressure
29.67 inHg
Visibility
10 mi
UV Index
5.1
Cloud Cover
53%
Sunrise
6:24 AM
Sunset
4:49 PM
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WeatherAI™ Analysis

WeatherAI Analysis: Hamilton County is currently partly cloudy at 12°C. Dry conditions are expected through the next 24 hours. Sunrise: 6:24AM · Sunset: 4:49PM.

25 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
12°
0%
3 PM
12°
0%
4 PM
12°
0%
5 PM
11°
0%
6 PM
9°
0%
7 PM
9°
0%
8 PM
6°
0%
9 PM
6°
0%
10 PM
4°
0%
11 PM
4°
0%
12 AM
3°
0%
1 AM
3°
0%
2 AM
2°
0%
3 AM
2°
0%
4 AM
2°
0%
5 AM
1°
0%
6 AM
1°
0%
7 AM
2°
0%
8 AM
2°
0%
9 AM
4°
0%
10 AM
6°
0%
11 AM
7°
0%
12 PM
9°
0%
1 PM
11°
0%
7-Day Forecast
Today
12° 1°
Partly Cloudy.
Sat
13° 1°
Mostly Clear.
Sun
18° 4°
Clear.
Mon
19° 7°
Clear.
Tue
20° 9°
Clear.
Wed
17° 7°
Mostly Clear with a 41% chance of rain.
Thu
12° 3°
Mostly Cloudy with a 38% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 12° Partly Cloudy 0% 12 mph NNW 54%
3 PM 12° Partly Cloudy 0% 12 mph NNW 52%
4 PM 12° Partly Cloudy 0% 11 mph NNW 53%
5 PM 11° Mostly Clear 0% 8 mph NNW 59%
6 PM 9° Mostly Clear 0% 7 mph NNW 61%
7 PM 9° Mostly Clear 0% 6 mph NNW 63%
8 PM 6° Clear 0% 5 mph NNW 65%
9 PM 6° Clear 0% 5 mph NNW 67%
10 PM 4° Clear 0% 5 mph NNW 70%
11 PM 4° Clear 0% 5 mph NNW 73%
12 AM 3° Clear 0% 4 mph NNW 76%
1 AM 3° Clear 0% 4 mph NNW 78%
2 AM 2° Clear 0% 4 mph NNW 79%
3 AM 2° Clear 0% 4 mph NNW 81%
4 AM 2° Clear 0% 3 mph NNW 82%
5 AM 1° Clear 0% 3 mph NNW 84%
6 AM 1° Clear 0% 3 mph NNW 85%
7 AM 2° Clear 0% 3 mph NNW 84%
8 AM 2° Clear 0% 3 mph NNW 79%
9 AM 4° Clear 0% 4 mph NNW 71%
10 AM 6° Mostly Clear 0% 4 mph NNW 64%
11 AM 7° Mostly Clear 0% 5 mph NNW 59%
12 PM 9° Mostly Clear 0% 5 mph NNW 55%
1 PM 11° Partly Cloudy 0% 5 mph NNW 46%
15-Day Forecast
Today
11/6
Partly Cloudy
0%
1°
12°
Sat
11/7
Mostly Clear
0%
1°
13°
Sun
11/8
Clear
3%
4°
18°
Mon
11/9
Clear
3%
7°
19°
Tue
11/10
Clear
19%
9°
20°
Wed
11/11
Mostly Clear
41%
7°
17°
Thu
11/12
Mostly Cloudy
38%
3°
12°
Fri
11/13
Mostly Cloudy
30%
1°
9°
Sat
11/14
Partly Cloudy
24%
-2°
10°
Sun
11/15
Partly Cloudy
52%
-1°
12°
Mon
11/16
Overcast
72%
1°
15°
Tue
11/17
Drizzle
81%
8°
15°
Wed
11/18
Drizzle
77%
8°
15°
Thu
11/19
Drizzle
69%
7°
14°
Fri
11/20
Drizzle
68%
7°
13°
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 4.3 µg/m³
O3
Ground-level ozone
Dominant
25 AQI 28 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Sat 25 Good 25 24
Sun 28 Good 26 28
Mon 40 Good 30 40
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 Fri Nov 6, 18:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 70 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE63 J/kg
MLCAPE12 J/kg
MUCAPE0 J/kg
SBCIN0 J/kg
MLCIN-1 J/kg
Lifted Index13.8
Kinematics
0–6 km Shear19 kt
0–1 km Shear6 kt
Eff. Shear—
0–1 km SRH16
0–3 km SRH39
Eff. SRH—
Storm Motion343° @ 30 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index-23.8
Thermo & Levels
PWAT0.35 in
0–3 km LR3.0 °C/km
700–500 LR7.7 °C/km
Total Totals28.2
LCL880 hPa
LFC1005 hPa
EL869 hPa
Freezing Lvl11,020 ft