Heat Advisory — Wayne, IN, Fayette, IN, Union, IN, Franklin, IN, Ripley, IN, Dearborn, IN, Ohio, IN, Switzerland, IN, Carroll, KY, Gallatin, KY, Boone, KY, Kenton, KY, Campbell, KY, Owen, KY, Grant, KY, Pendleton, KY, Bracken, KY, Robertson, KY, Mason, KY, Lewis, KY, Hardin, OH, Mercer, OH, Auglaize, OH, Darke, OH, Shelby, OH, Logan, OH, Union, OH, Delaware, OH, Miami, OH, Champaign, OH, Clark, OH, Madison, OH, Franklin, OH, Licking, OH, Preble, OH, Montgomery, OH, Greene, OH, Fayette, OH, Pickaway, OH, Fairfield, OH, Butler, OH, Warren, OH, Clinton, OH, Ross, OH, Hocking, OH, Hamilton, OH, Clermont, OH, Brown, OH, Highland, OH, Adams, OH, Pike, OH, Scioto, OH 10:00 PM

Union County, Ohio, United States

Last updated: 11:51 PM CDT  ·  Refresh
23°C
Feels like 26°
Partly Cloudy
▲ 33°  /  ▼ 22°
Wind
7 mph SSW
Humidity
89%
Dew Point
21°
Pressure
28.97 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
44%
Sunrise
7:01 AM
Sunset
8:05 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Union County is currently partly cloudy at 23°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 3525 J/kg) — isolated convective development possible. Sunrise: 7:01AM · Sunset: 8:05PM.

Alerts

Heat Advisory
Wayne, IN, Fayette, IN, Union, IN, Franklin, IN, Ripley, IN, Dearborn, IN, Ohio, IN, Switzerland, IN, Carroll, KY, Gallatin, KY, Boone, KY, Kenton, KY, Campbell, KY, Owen, KY, Grant, KY, Pendleton, KY, Bracken, KY, Robertson, KY, Mason, KY, Lewis, KY, Hardin, OH, Mercer, OH, Auglaize, OH, Darke, OH, Shelby, OH, Logan, OH, Union, OH, Delaware, OH, Miami, OH, Champaign, OH, Clark, OH, Madison, OH, Franklin, OH, Licking, OH, Preble, OH, Montgomery, OH, Greene, OH, Fayette, OH, Pickaway, OH, Fairfield, OH, Butler, OH, Warren, OH, Clinton, OH, Ross, OH, Hocking, OH, Hamilton, OH, Clermont, OH, Brown, OH, Highland, OH, Adams, OH, Pike, OH, Scioto, OH
Expires 10:00 PM
62 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
23°
8%
1 AM
23°
8%
2 AM
23°
11%
3 AM
22°
22%
4 AM
22°
28%
5 AM
22°
29%
6 AM
22°
20%
7 AM
22°
20%
8 AM
24°
25%
9 AM
26°
25%
10 AM
28°
25%
11 AM
29°
21%
12 PM
30°
9%
1 PM
32°
12%
2 PM
32°
10%
3 PM
33°
16%
4 PM
33°
16%
5 PM
32°
14%
6 PM
31°
9%
7 PM
29°
9%
8 PM
29°
10%
9 PM
27°
10%
10 PM
27°
10%
11 PM
27°
10%
7-Day Forecast
Today
33° 22°
Partly Cloudy with a 25% chance of rain.
Wed
35° 22°
Clear.
Thu
35° 22°
Mostly Clear with a 82% chance of rain.
Fri
34° 21°
Thunderstorm, 60% chance.
Sat
31° 18°
Drizzle, 60% chance.
Sun
28° 17°
Clear.
Mon
29° 16°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 23° Partly Cloudy 8% 7 mph SSW 89%
1 AM 23° Mostly Cloudy 8% 7 mph SSW 87%
2 AM 23° Partly Cloudy 11% 7 mph SSW 86%
3 AM 22° Mostly Clear 22% 8 mph SSW 86%
4 AM 22° Mostly Clear 28% 8 mph SSW 87%
5 AM 22° Mostly Clear 29% 8 mph SW 87%
6 AM 22° Partly Cloudy 20% 8 mph SW 87%
7 AM 22° Partly Cloudy 20% 8 mph SW 87%
8 AM 24° Mostly Clear 25% 9 mph SW 84%
9 AM 26° Mostly Clear 25% 10 mph WSW 79%
10 AM 28° Mostly Clear 25% 11 mph WSW 73%
11 AM 29° Mostly Clear 21% 12 mph WSW 69%
12 PM 30° Partly Cloudy 9% 11 mph WSW 66%
1 PM 32° Partly Cloudy 12% 11 mph WSW 64%
2 PM 32° Partly Cloudy 10% 11 mph WSW 64%
3 PM 33° Mostly Cloudy 16% 11 mph WSW 63%
4 PM 33° Mostly Cloudy 16% 11 mph WSW 63%
5 PM 32° Mostly Cloudy 14% 10 mph SW 68%
6 PM 31° Mostly Cloudy 9% 9 mph SW 75%
7 PM 29° Mostly Cloudy 9% 8 mph SW 80%
8 PM 29° Mostly Cloudy 10% 8 mph SW 82%
9 PM 27° Partly Cloudy 10% 8 mph SW 83%
10 PM 27° Partly Cloudy 10% 8 mph SW 85%
11 PM 27° Partly Cloudy 10% 8 mph SW 84%
15-Day Forecast
Today
9/1
Partly Cloudy
25%
22°
33°
Wed
9/2
Clear
7%
22°
35°
Thu
9/3
Mostly Clear
82%
22°
35°
Fri
9/4
Thunderstorm
60%
21°
34°
Sat
9/5
Drizzle
60%
18°
31°
Sun
9/6
Clear
19%
17°
28°
Mon
9/7
Clear
19%
16°
29°
Tue
9/8
Drizzle
60%
18°
29°
Wed
9/9
Drizzle
60%
18°
31°
Thu
9/10
Clear
42%
17°
31°
Fri
9/11
Drizzle
60%
19°
30°
Sat
9/12
Drizzle
60%
16°
28°
Sun
9/13
Drizzle
60%
15°
26°
Mon
9/14
Drizzle
60%
15°
27°
Tue
9/15
Drizzle
60%
15°
26°
62
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
62 AQI 15.0 µg/m³
O3
Ground-level ozone
40 AQI 44 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 62 Moderate 40 62
Wed 56 Moderate 32 56
Thu 56 Moderate 36 56
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 Tue Sep 1, 03:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE672 J/kg
MLCAPE245 J/kg
MUCAPE1055 J/kg
SBCIN-420 J/kg
MLCIN-382 J/kg
Lifted Index-3.0
Kinematics
0–6 km Shear34 kt
0–1 km Shear19 kt
Eff. Shear—
0–1 km SRH153
0–3 km SRH188
Eff. SRH—
Storm Motion342° @ 20 kt
0–1 km EHI0.6
Composite Parameters
Sig. Tornado0.4
STP (eff)—
Supercell—
K-Index26.7
Thermo & Levels
PWAT1.44 in
0–3 km LR4.2 °C/km
700–500 LR6.8 °C/km
Total Totals41.4
LCL955 hPa
LFC634 hPa
EL193 hPa
Freezing Lvl14,833 ft