Heat Advisory — Hardin, OH, Mercer, OH, Auglaize, OH, Darke, OH, Shelby, OH, Logan, OH, Miami, OH, Champaign, OH, Clark, OH, Preble, OH, Montgomery, OH, Greene, OH, Butler, OH, Warren, OH, Clinton, OH, Hamilton, OH, Clermont, OH, Brown, OH, Highland, OH, Adams, OH, Union, OH, Delaware, OH, Madison, OH, Franklin, OH, Licking, OH, Fayette, OH, Pickaway, OH, Fairfield, OH, Ross, OH, Hocking, OH, Pike, OH, Scioto, OH 7:00 PM Excessive Heat Warning — 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 7:00 PM

Mercer County, Ohio, United States

Last updated: 3:53 PM CDT  ·  Refresh
33°C
Feels like 39°
Clear
▲ 34°  /  ▼ 22°
Wind
11 mph SW
Humidity
55%
Dew Point
23°
Pressure
29.06 inHg
Visibility
10 mi
UV Index
7.9
Cloud Cover
2%
Sunrise
6:12 AM
Sunset
9:12 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Mercer County is currently clear at 33°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 3426 J/kg) — isolated convective development possible. Sunrise: 6:12AM · Sunset: 9:12PM.

Alerts

Heat Advisory
Hardin, OH, Mercer, OH, Auglaize, OH, Darke, OH, Shelby, OH, Logan, OH, Miami, OH, Champaign, OH, Clark, OH, Preble, OH, Montgomery, OH, Greene, OH, Butler, OH, Warren, OH, Clinton, OH, Hamilton, OH, Clermont, OH, Brown, OH, Highland, OH, Adams, OH, Union, OH, Delaware, OH, Madison, OH, Franklin, OH, Licking, OH, Fayette, OH, Pickaway, OH, Fairfield, OH, Ross, OH, Hocking, OH, Pike, OH, Scioto, OH
Expires 7:00 PM
Excessive Heat Warning
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 7:00 PM
68 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
33°
3%
5 PM
34°
3%
6 PM
33°
3%
7 PM
32°
3%
8 PM
30°
3%
9 PM
28°
3%
10 PM
26°
3%
11 PM
26°
3%
12 AM
25°
3%
1 AM
24°
3%
2 AM
24°
3%
3 AM
23°
3%
4 AM
23°
3%
5 AM
22°
5%
6 AM
22°
5%
7 AM
23°
5%
8 AM
25°
5%
9 AM
27°
5%
10 AM
28°
5%
11 AM
30°
5%
12 PM
31°
5%
1 PM
32°
5%
2 PM
32°
5%
3 PM
32°
5%
7-Day Forecast
Today
34° 22°
Clear.
Thu
34° 22°
Mostly Clear.
Fri
34° 23°
Partly Cloudy with a 84% chance of rain.
Sat
32° 21°
Overcast with a 69% chance of rain.
Sun
31° 22°
Rain, 64% chance.
Mon
30° 21°
Rain, 64% chance.
Tue
27° 20°
Rain, 28% chance.
TimeTempConditionsPrecipWindHumidity
Now 33° Clear 3% 11 mph SW 55%
5 PM 34° Clear 3% 10 mph SW 59%
6 PM 33° Clear 3% 10 mph SW 64%
7 PM 32° Clear 3% 8 mph SW 69%
8 PM 30° Clear 3% 7 mph SW 75%
9 PM 28° Clear 3% 7 mph SW 80%
10 PM 26° Clear 3% 8 mph SW 86%
11 PM 26° Clear 3% 8 mph SW 88%
12 AM 25° Clear 3% 7 mph SW 89%
1 AM 24° Clear 3% 7 mph SW 90%
2 AM 24° Clear 3% 6 mph SW 91%
3 AM 23° Clear 3% 6 mph SW 92%
4 AM 23° Clear 3% 6 mph SW 93%
5 AM 22° Clear 5% 6 mph SW 92%
6 AM 22° Clear 5% 6 mph SW 91%
7 AM 23° Clear 5% 7 mph SW 88%
8 AM 25° Clear 5% 8 mph WSW 82%
9 AM 27° Mostly Clear 5% 8 mph WSW 77%
10 AM 28° Mostly Clear 5% 8 mph WSW 72%
11 AM 30° Mostly Clear 5% 8 mph WSW 69%
12 PM 31° Mostly Clear 5% 8 mph SW 66%
1 PM 32° Mostly Clear 5% 8 mph SW 63%
2 PM 32° Clear 5% 9 mph SW 62%
3 PM 32° Clear 5% 9 mph SW 62%
15-Day Forecast
Today
7/1
Clear
3%
22°
34°
Thu
7/2
Mostly Clear
6%
22°
34°
Fri
7/3
Partly Cloudy
84%
23°
34°
Sat
7/4
Overcast
69%
21°
32°
Sun
7/5
Rain
64%
22°
31°
Mon
7/6
Rain
64%
21°
30°
Tue
7/7
Rain
28%
20°
27°
Wed
7/8
Thunderstorm
69%
19°
29°
Thu
7/9
Rain
68%
19°
27°
Fri
7/10
Rain
68%
18°
28°
Sat
7/11
Drizzle
64%
18°
27°
Sun
7/12
Drizzle
60%
18°
28°
Mon
7/13
Drizzle
60%
18°
28°
Tue
7/14
Drizzle
60%
17°
27°
Wed
7/15
Drizzle
60%
17°
26°
68
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
68 AQI 18.5 µg/m³
O3
Ground-level ozone
35 AQI 38 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Thu 68 Moderate 35 68
Fri 59 Moderate 37 59
Sat 59 Moderate 36 59
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 Wed Jul 1, 19:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE3620 J/kg
MLCAPE2261 J/kg
MUCAPE3620 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index-7.4
Kinematics
0–6 km Shear18 kt
0–1 km Shear2 kt
Eff. Shear13 kt
0–1 km SRH-2
0–3 km SRH-69
Eff. SRH-69
Storm Motion221° @ 27 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index22.0
Thermo & Levels
PWAT1.27 in
0–3 km LR7.0 °C/km
700–500 LR7.0 °C/km
Total Totals45.7
LCL843 hPa
LFC984 hPa
EL143 hPa
Freezing Lvl14,327 ft