Heat Advisory — Jefferson, IL, Wayne, IL, Edwards, IL, Wabash, IL, Franklin, IL, Hamilton, IL, White, IL, Jackson, IL, Williamson, IL, Saline, IL, Gallatin, IL, Union, IL, Johnson, IL, Pope, IL, Hardin, IL, Alexander, IL, Pulaski, IL, Massac, IL, Gibson, IN, Pike, IN, Posey, IN, Vanderburgh, IN, Warrick, IN, Spencer, IN, Fulton, KY, Hickman, KY, Carlisle, KY, Ballard, KY, McCracken, KY, Graves, KY, Livingston, KY, Marshall, KY, Calloway, KY, Crittenden, KY, Lyon, KY, Trigg, KY, Caldwell, KY, Union, KY, Webster, KY, Hopkins, KY, Christian, KY, Henderson, KY, Daviess, KY, McLean, KY, Muhlenberg, KY, Todd, KY, Perry, MO, Bollinger, MO, Cape Girardeau, MO, Wayne, MO, Carter, MO, Ripley, MO, Butler, MO, Stoddard, MO, Scott, MO, Mississippi, MO, New Madrid, MO 8:00 PM

Gallatin County, Illinois, United States

Last updated: 8:07 AM CDT  ·  Refresh
25°C
Feels like 27°
Mostly Clear
▲ 34°  /  ▼ 23°
Wind
8 mph SSW
Humidity
82%
Dew Point
22°
Pressure
29.64 inHg
Visibility
10 mi
UV Index
5.3
Cloud Cover
12%
Sunrise
6:04 AM
Sunset
7:51 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Gallatin County is currently mostly clear at 25°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 3711 J/kg) — isolated convective development possible. Sunrise: 6:04AM · Sunset: 7:51PM.

Alerts

Heat Advisory
Jefferson, IL, Wayne, IL, Edwards, IL, Wabash, IL, Franklin, IL, Hamilton, IL, White, IL, Jackson, IL, Williamson, IL, Saline, IL, Gallatin, IL, Union, IL, Johnson, IL, Pope, IL, Hardin, IL, Alexander, IL, Pulaski, IL, Massac, IL, Gibson, IN, Pike, IN, Posey, IN, Vanderburgh, IN, Warrick, IN, Spencer, IN, Fulton, KY, Hickman, KY, Carlisle, KY, Ballard, KY, McCracken, KY, Graves, KY, Livingston, KY, Marshall, KY, Calloway, KY, Crittenden, KY, Lyon, KY, Trigg, KY, Caldwell, KY, Union, KY, Webster, KY, Hopkins, KY, Christian, KY, Henderson, KY, Daviess, KY, McLean, KY, Muhlenberg, KY, Todd, KY, Perry, MO, Bollinger, MO, Cape Girardeau, MO, Wayne, MO, Carter, MO, Ripley, MO, Butler, MO, Stoddard, MO, Scott, MO, Mississippi, MO, New Madrid, MO
Expires 8:00 PM
47 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
25°
11%
9 AM
27°
19%
10 AM
28°
20%
11 AM
29°
20%
12 PM
31°
14%
1 PM
33°
3%
2 PM
33°
3%
3 PM
33°
3%
4 PM
33°
3%
5 PM
33°
3%
6 PM
33°
3%
7 PM
32°
3%
8 PM
31°
3%
9 PM
28°
3%
10 PM
27°
11%
11 PM
27°
11%
12 AM
27°
11%
1 AM
26°
11%
2 AM
26°
11%
3 AM
26°
11%
4 AM
25°
5%
5 AM
24°
5%
6 AM
24°
7%
7 AM
24°
7%
7-Day Forecast
Today
34° 23°
Mostly Clear with a 20% chance of rain.
Tue
36° 24°
Mostly Clear with a 23% chance of rain.
Wed
38° 24°
Mostly Clear with a 60% chance of rain.
Thu
35° 24°
Partly Cloudy with a 81% chance of rain.
Fri
32° 22°
Drizzle, 67% chance.
Sat
36° 22°
Clear.
Sun
37° 24°
Clear with a 28% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 25° Mostly Clear 11% 8 mph SSW 82%
9 AM 27° Clear 19% 11 mph SW 75%
10 AM 28° Mostly Clear 20% 11 mph SW 70%
11 AM 29° Clear 20% 12 mph SW 66%
12 PM 31° Mostly Clear 14% 12 mph SW 62%
1 PM 33° Partly Cloudy 3% 12 mph SW 59%
2 PM 33° Partly Cloudy 3% 12 mph SW 58%
3 PM 33° Partly Cloudy 3% 12 mph SW 57%
4 PM 33° Partly Cloudy 3% 11 mph SW 57%
5 PM 33° Partly Cloudy 3% 10 mph SW 61%
6 PM 33° Partly Cloudy 3% 8 mph SSW 66%
7 PM 32° Partly Cloudy 3% 7 mph SSW 70%
8 PM 31° Partly Cloudy 3% 7 mph SSW 73%
9 PM 28° Mostly Clear 3% 7 mph SSW 75%
10 PM 27° Mostly Clear 11% 7 mph SSW 77%
11 PM 27° Mostly Clear 11% 8 mph SSW 77%
12 AM 27° Partly Cloudy 11% 8 mph SSW 76%
1 AM 26° Partly Cloudy 11% 9 mph SSW 76%
2 AM 26° Partly Cloudy 11% 9 mph SSW 77%
3 AM 26° Partly Cloudy 11% 9 mph SSW 79%
4 AM 25° Partly Cloudy 5% 9 mph SSW 80%
5 AM 24° Mostly Clear 5% 9 mph SSW 81%
6 AM 24° Mostly Clear 7% 10 mph SSW 83%
7 AM 24° Clear 7% 10 mph SSW 83%
15-Day Forecast
Today
8/10
Mostly Clear
20%
23°
34°
Tue
8/11
Mostly Clear
23%
24°
36°
Wed
8/12
Mostly Clear
60%
24°
38°
Thu
8/13
Partly Cloudy
81%
24°
35°
Fri
8/14
Drizzle
67%
22°
32°
Sat
8/15
Clear
19%
22°
36°
Sun
8/16
Clear
28%
24°
37°
Mon
8/17
Partly Cloudy
38%
21°
32°
Tue
8/18
Rain
53%
19°
33°
Wed
8/19
Thunderstorm
45%
21°
33°
Thu
8/20
Clear
60%
22°
34°
Fri
8/21
Drizzle
60%
21°
33°
Sat
8/22
Clear
60%
21°
33°
Sun
8/23
Drizzle
60%
21°
33°
Mon
8/24
Clear
60%
20°
32°
47
Good
U.S. Air Quality Index · Dominant: PM2.5
50 100 150 200

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

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
Dominant
47 AQI 8.5 µg/m³
O3
Ground-level ozone
42 AQI 46 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Tue 47 Good 42 47
Wed 39 Good 39 24
Thu 37 Good 37 28
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 Mon Aug 10, 11:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE1385 J/kg
MLCAPE1439 J/kg
MUCAPE1623 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index-6.2
Kinematics
0–6 km Shear12 kt
0–1 km Shear19 kt
Eff. Shear10 kt
0–1 km SRH125
0–3 km SRH142
Eff. SRH142
Storm Motion1° @ 7 kt
0–1 km EHI1.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index26.4
Thermo & Levels
PWAT1.61 in
0–3 km LR4.3 °C/km
700–500 LR7.9 °C/km
Total Totals52.4
LCL959 hPa
LFC1004 hPa
EL199 hPa
Freezing Lvl14,836 ft