Heat Advisory — Perry, MO, Bollinger, MO, Cape Girardeau, MO, Wayne, MO, Carter, MO, Ripley, MO, Butler, MO, Stoddard, MO, Scott, MO, Mississippi, MO, New Madrid, MO, 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 7:00 PM

Gallatin County, Illinois, United States

Last updated: 12:14 PM CDT  ·  Refresh
31°C
Feels like 39°
Partly Cloudy
▲ 36°  /  ▼ 21°
Wind
4 mph SSW
Humidity
77%
Dew Point
26°
Pressure
29.54 inHg
Visibility
9 mi
UV Index
8.6
Cloud Cover
50%
Sunrise
5:51 AM
Sunset
8:06 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Gallatin County is currently partly cloudy at 31°C. Precipitation is likely — peak probability 67% around 9 PM. Atmospheric instability is elevated (CAPE up to 4538 J/kg) — isolated convective development possible. Sunrise: 5:51AM · Sunset: 8:06PM.

Alerts

Heat Advisory
Perry, MO, Bollinger, MO, Cape Girardeau, MO, Wayne, MO, Carter, MO, Ripley, MO, Butler, MO, Stoddard, MO, Scott, MO, Mississippi, MO, New Madrid, MO, 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
Expires 7:00 PM
51 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
31°
5%
1 PM
33°
25%
2 PM
34°
32%
3 PM
34°
43%
4 PM
35°
37%
5 PM
35°
42%
6 PM
34°
41%
7 PM
33°
55%
8 PM
32°
66%
9 PM
30°
66%
10 PM
29°
55%
11 PM
27°
59%
12 AM
26°
52%
1 AM
24°
53%
2 AM
23°
61%
3 AM
23°
46%
4 AM
23°
41%
5 AM
23°
31%
6 AM
23°
16%
7 AM
23°
5%
8 AM
25°
5%
9 AM
27°
5%
10 AM
28°
5%
11 AM
29°
6%
7-Day Forecast
Today
36° 21°
Mostly Clear with a 66% chance of rain.
Mon
36° 21°
Partly Cloudy with a 52% chance of rain.
Tue
35° 22°
Mostly Clear with a 25% chance of rain.
Wed
30° 19°
Mostly Clear with a 44% chance of rain.
Thu
31° 17°
Clear.
Fri
29° 19°
Rain, 90% chance.
Sat
30° 18°
Drizzle, 81% chance.
TimeTempConditionsPrecipWindHumidity
Now 31° Partly Cloudy 5% 4 mph SSW 77%
1 PM 33° Partly Cloudy 25% 5 mph SW 73%
2 PM 34° Partly Cloudy 32% 6 mph WSW 69%
3 PM 34° Mostly Clear 43% 7 mph WSW 67%
4 PM 35° Mostly Clear 37% 8 mph WSW 65%
5 PM 35° Mostly Clear 42% 7 mph WSW 69%
6 PM 34° Mostly Clear 41% 6 mph WSW 74%
7 PM 33° Mostly Clear 55% 5 mph SW 78%
8 PM 32° Partly Cloudy 66% 5 mph SW 79%
9 PM 30° Partly Cloudy 66% 6 mph SW 80%
10 PM 29° Overcast 55% 6 mph SSW 82%
11 PM 27° Overcast 59% 6 mph SSW 86%
12 AM 26° Rain 52% 7 mph S 91%
1 AM 24° Rain 53% 8 mph SSE 94%
2 AM 23° Rain 61% 7 mph SSE 94%
3 AM 23° Drizzle 46% 6 mph SSE 94%
4 AM 23° Drizzle 41% 8 mph SSE 94%
5 AM 23° Mostly Cloudy 31% 7 mph SSE 94%
6 AM 23° Mostly Cloudy 16% 6 mph SSE 93%
7 AM 23° Mostly Cloudy 5% 6 mph SSE 92%
8 AM 25° Mostly Cloudy 5% 7 mph SSE 88%
9 AM 27° Partly Cloudy 5% 7 mph SSE 84%
10 AM 28° Partly Cloudy 5% 7 mph SSE 80%
11 AM 29° Partly Cloudy 6% 7 mph SSE 77%
15-Day Forecast
Today
7/26
Mostly Clear
66%
21°
36°
Mon
7/27
Partly Cloudy
52%
21°
36°
Tue
7/28
Mostly Clear
25%
22°
35°
Wed
7/29
Mostly Clear
44%
19°
30°
Thu
7/30
Clear
16%
17°
31°
Fri
7/31
Rain
90%
19°
29°
Sat
8/1
Drizzle
81%
18°
30°
Sun
8/2
Drizzle
60%
19°
30°
Mon
8/3
Drizzle
60%
19°
31°
Tue
8/4
Drizzle
60%
21°
33°
Wed
8/5
Drizzle
60%
22°
33°
Thu
8/6
Drizzle
60%
21°
32°
Fri
8/7
Drizzle
60%
20°
32°
Sat
8/8
Drizzle
60%
20°
32°
Sun
8/9
Drizzle
60%
21°
32°
51
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
51 AQI 9.3 µg/m³
O3
Ground-level ozone
34 AQI 37 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Mon 51 Moderate 34 51
Tue 51 Moderate 34 51
Wed 44 Good 38 44
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, 15:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE4443 J/kg
MLCAPE2928 J/kg
MUCAPE4443 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index-7.2
Kinematics
0–6 km Shear23 kt
0–1 km Shear7 kt
Eff. Shear30 kt
0–1 km SRH-9
0–3 km SRH-54
Eff. SRH-54
Storm Motion294° @ 20 kt
0–1 km EHI-0.3
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index27.9
Thermo & Levels
PWAT1.73 in
0–3 km LR6.2 °C/km
700–500 LR5.6 °C/km
Total Totals45.5
LCL933 hPa
LFC1000 hPa
EL135 hPa
Freezing Lvl16,893 ft