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: 12:14 AM CDT  ·  Refresh
23°C
Feels like 26°
Mostly Cloudy
▲ 32°  /  ▼ 22°
Wind
6 mph SSW
Humidity
88%
Dew Point
21°
Pressure
28.97 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
72%
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 mostly cloudy at 23°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 3250 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°
16%
2 AM
23°
16%
3 AM
22°
18%
4 AM
22°
20%
5 AM
22°
21%
6 AM
22°
22%
7 AM
22°
23%
8 AM
22°
19%
9 AM
24°
20%
10 AM
27°
23%
11 AM
28°
20%
12 PM
29°
20%
1 PM
30°
9%
2 PM
32°
9%
3 PM
32°
14%
4 PM
32°
14%
5 PM
32°
12%
6 PM
32°
12%
7 PM
31°
9%
8 PM
28°
9%
9 PM
28°
9%
10 PM
26°
9%
11 PM
26°
9%
12 AM
26°
9%
7-Day Forecast
Today
32° 22°
Partly Cloudy with a 23% chance of rain.
Wed
34° 22°
Clear with a 20% chance of rain.
Thu
34° 22°
Partly Cloudy with a 83% chance of rain.
Fri
33° 22°
Overcast with a 63% chance of rain.
Sat
30° 17°
Drizzle, 64% chance.
Sun
28° 16°
Clear.
Mon
29° 16°
Rain, 27% chance.
TimeTempConditionsPrecipWindHumidity
Now 23° Mostly Cloudy 16% 6 mph SSW 88%
2 AM 23° Overcast 16% 7 mph SSW 86%
3 AM 22° Partly Cloudy 18% 8 mph SSW 86%
4 AM 22° Mostly Clear 20% 8 mph SW 86%
5 AM 22° Mostly Clear 21% 8 mph SW 86%
6 AM 22° Mostly Clear 22% 8 mph SW 86%
7 AM 22° Mostly Clear 23% 8 mph SW 87%
8 AM 22° Mostly Clear 19% 9 mph SW 86%
9 AM 24° Mostly Clear 20% 10 mph WSW 80%
10 AM 27° Mostly Clear 23% 11 mph WSW 75%
11 AM 28° Mostly Clear 20% 12 mph WSW 70%
12 PM 29° Mostly Clear 20% 12 mph WSW 67%
1 PM 30° Partly Cloudy 9% 12 mph WSW 64%
2 PM 32° Partly Cloudy 9% 12 mph WSW 62%
3 PM 32° Partly Cloudy 14% 12 mph WSW 62%
4 PM 32° Mostly Cloudy 14% 11 mph WSW 63%
5 PM 32° Mostly Cloudy 12% 10 mph WSW 65%
6 PM 32° Mostly Cloudy 12% 9 mph WSW 71%
7 PM 31° Mostly Cloudy 9% 8 mph WSW 78%
8 PM 28° Mostly Cloudy 9% 7 mph SW 83%
9 PM 28° Partly Cloudy 9% 7 mph SW 85%
10 PM 26° Partly Cloudy 9% 7 mph WSW 86%
11 PM 26° Partly Cloudy 9% 7 mph WSW 87%
12 AM 26° Partly Cloudy 9% 7 mph WSW 86%
15-Day Forecast
Today
9/1
Partly Cloudy
23%
22°
32°
Wed
9/2
Clear
20%
22°
34°
Thu
9/3
Partly Cloudy
83%
22°
34°
Fri
9/4
Overcast
63%
22°
33°
Sat
9/5
Drizzle
64%
17°
30°
Sun
9/6
Clear
17%
16°
28°
Mon
9/7
Rain
27%
16°
29°
Tue
9/8
Rain
69%
15°
28°
Wed
9/9
Drizzle
44%
10°
29°
Thu
9/10
Clear
36%
17°
36°
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, 04:00'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
SBCAPE691 J/kg
MLCAPE441 J/kg
MUCAPE1176 J/kg
SBCIN-411 J/kg
MLCIN-344 J/kg
Lifted Index-3.3
Kinematics
0–6 km Shear29 kt
0–1 km Shear18 kt
Eff. Shear—
0–1 km SRH155
0–3 km SRH178
Eff. SRH—
Storm Motion341° @ 20 kt
0–1 km EHI0.7
Composite Parameters
Sig. Tornado0.4
STP (eff)—
Supercell—
K-Index26.1
Thermo & Levels
PWAT1.50 in
0–3 km LR4.1 °C/km
700–500 LR7.0 °C/km
Total Totals43.2
LCL954 hPa
LFC634 hPa
EL192 hPa
Freezing Lvl14,829 ft