Extreme Heat Warning — Jefferson, IL, Wayne, IL, Edwards, IL, Wabash, IL, Perry, 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

Posey County, Indiana, United States

Last updated: 2:26 AM CDT  ·  Refresh
25°C
Feels like 28°
Clear
▲ 38°  /  ▼ 24°
Wind
2 mph S
Humidity
79%
Dew Point
22°
Pressure
29.53 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
1%
Sunrise
6:23 AM
Sunset
7:16 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Posey County is currently clear at 25°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2053 J/kg) — isolated convective development possible. Sunrise: 6:23AM · Sunset: 7:16PM.

Alerts

Extreme Heat Warning
Jefferson, IL, Wayne, IL, Edwards, IL, Wabash, IL, Perry, 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
56 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
25°
16%
3 AM
25°
7%
4 AM
25°
4%
5 AM
23°
4%
6 AM
23°
4%
7 AM
24°
4%
8 AM
27°
9%
9 AM
31°
9%
10 AM
33°
7%
11 AM
34°
7%
12 PM
35°
8%
1 PM
37°
8%
2 PM
37°
10%
3 PM
37°
10%
4 PM
36°
23%
5 PM
37°
23%
6 PM
36°
18%
7 PM
35°
18%
8 PM
34°
18%
9 PM
29°
21%
10 PM
29°
12%
11 PM
28°
12%
12 AM
28°
12%
1 AM
28°
12%
7-Day Forecast
Today
38° 24°
Clear with a 23% chance of rain.
Sat
39° 24°
Mostly Clear with a 57% chance of rain.
Sun
35° 18°
Partly Cloudy.
Mon
32° 13°
Mostly Cloudy.
Tue
38° 18°
Clear.
Wed
41° 22°
Clear with a 28% chance of rain.
Thu
38° 20°
Clear with a 31% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 25° Clear 16% 2 mph S 79%
3 AM 25° Clear 7% 3 mph S 79%
4 AM 25° Clear 4% 3 mph S 80%
5 AM 23° Clear 4% 3 mph S 81%
6 AM 23° Clear 4% 3 mph S 82%
7 AM 24° Clear 4% 3 mph S 79%
8 AM 27° Clear 9% 3 mph SSW 71%
9 AM 31° Clear 9% 4 mph SW 62%
10 AM 33° Clear 7% 4 mph SW 55%
11 AM 34° Clear 7% 3 mph SW 51%
12 PM 35° Clear 8% 3 mph SW 46%
1 PM 37° Clear 8% 3 mph SW 44%
2 PM 37° Clear 10% 4 mph SW 44%
3 PM 37° Mostly Clear 10% 4 mph WSW 45%
4 PM 36° Mostly Clear 23% 4 mph WSW 47%
5 PM 37° Mostly Clear 23% 3 mph SW 51%
6 PM 36° Mostly Clear 18% 4 mph SW 56%
7 PM 35° Mostly Clear 18% 4 mph SW 60%
8 PM 34° Mostly Clear 18% 4 mph SSW 63%
9 PM 29° Mostly Clear 21% 5 mph SSW 66%
10 PM 29° Mostly Clear 12% 5 mph SSW 68%
11 PM 28° Mostly Clear 12% 5 mph SSW 69%
12 AM 28° Mostly Clear 12% 5 mph SSW 71%
1 AM 28° Mostly Clear 12% 5 mph SW 73%
15-Day Forecast
Today
9/4
Clear
23%
24°
38°
Sat
9/5
Mostly Clear
57%
24°
39°
Sun
9/6
Partly Cloudy
18%
18°
35°
Mon
9/7
Mostly Cloudy
3%
13°
32°
Tue
9/8
Clear
3%
18°
38°
Wed
9/9
Clear
28%
22°
41°
Thu
9/10
Clear
31%
20°
38°
Fri
9/11
Rain
69%
16°
35°
Sat
9/12
Clear
44%
20°
39°
Sun
9/13
Drizzle
44%
18°
35°
Mon
9/14
Drizzle
60%
21°
38°
Tue
9/15
Drizzle
60%
22°
38°
Wed
9/16
Drizzle
60%
21°
37°
Thu
9/17
Clear
60%
19°
34°
Fri
9/18
Clear
25%
18°
34°
56
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
56 AQI 11.8 µg/m³
O3
Ground-level ozone
44 AQI 48 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 56 Moderate 44 56
Sat 57 Moderate 44 57
Sun 54 Moderate 44 54
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 Sep 4, 06:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE323 J/kg
MLCAPE488 J/kg
MUCAPE702 J/kg
SBCIN-447 J/kg
MLCIN-194 J/kg
Lifted Index-0.9
Kinematics
0–6 km Shear9 kt
0–1 km Shear11 kt
Eff. Shear2 kt
0–1 km SRH19
0–3 km SRH16
Eff. SRH-1
Storm Motion338° @ 11 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index35.2
Thermo & Levels
PWAT1.62 in
0–3 km LR5.1 °C/km
700–500 LR5.1 °C/km
Total Totals45.1
LCL953 hPa
LFC566 hPa
EL271 hPa
Freezing Lvl16,480 ft