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

Hamilton County, Ohio, United States

Last updated: 3:52 PM CDT  ·  Refresh
35°C
Feels like 39°
Clear
▲ 36°  /  ▼ 22°
Wind
8 mph SW
Humidity
46%
Dew Point
21°
Pressure
29.22 inHg
Visibility
9 mi
UV Index
8.0
Cloud Cover
0%
Sunrise
6:15 AM
Sunset
9:08 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Hamilton County is currently clear at 35°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 3268 J/kg) — isolated convective development possible. Sunrise: 6:15AM · Sunset: 9:08PM.

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
71 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
35°
3%
5 PM
36°
3%
6 PM
35°
3%
7 PM
34°
3%
8 PM
32°
3%
9 PM
29°
3%
10 PM
28°
3%
11 PM
27°
3%
12 AM
27°
3%
1 AM
26°
3%
2 AM
25°
3%
3 AM
24°
15%
4 AM
24°
15%
5 AM
22°
15%
6 AM
22°
3%
7 AM
23°
3%
8 AM
25°
3%
9 AM
28°
3%
10 AM
29°
3%
11 AM
31°
3%
12 PM
32°
3%
1 PM
33°
3%
2 PM
33°
3%
3 PM
34°
3%
7-Day Forecast
Today
36° 22°
Clear.
Thu
36° 22°
Fog.
Fri
37° 23°
Partly Cloudy with a 28% chance of rain.
Sat
34° 23°
Mostly Cloudy with a 28% chance of rain.
Sun
33° 22°
Clear with a 30% chance of rain.
Mon
33° 22°
Thunderstorm, 64% chance.
Tue
29° 20°
Rain, 42% chance.
TimeTempConditionsPrecipWindHumidity
Now 35° Clear 3% 8 mph SW 46%
5 PM 36° Clear 3% 8 mph SW 49%
6 PM 35° Clear 3% 7 mph WSW 57%
7 PM 34° Clear 3% 6 mph WSW 64%
8 PM 32° Clear 3% 5 mph WSW 68%
9 PM 29° Clear 3% 5 mph WSW 71%
10 PM 28° Clear 3% 4 mph WSW 75%
11 PM 27° Clear 3% 4 mph SW 79%
12 AM 27° Clear 3% 4 mph SW 82%
1 AM 26° Clear 3% 4 mph SW 86%
2 AM 25° Mostly Clear 3% 4 mph SW 88%
3 AM 24° Mostly Clear 15% 4 mph WSW 90%
4 AM 24° Haze 15% 3 mph WSW 93%
5 AM 22° Fog 15% 3 mph WSW 92%
6 AM 22° Fog 3% 3 mph WSW 92%
7 AM 23° Fog 3% 2 mph WSW 89%
8 AM 25° Partly Cloudy 3% 2 mph W 81%
9 AM 28° Partly Cloudy 3% 3 mph W 73%
10 AM 29° Mostly Clear 3% 4 mph W 67%
11 AM 31° Partly Cloudy 3% 4 mph W 63%
12 PM 32° Partly Cloudy 3% 4 mph W 59%
1 PM 33° Partly Cloudy 3% 4 mph W 56%
2 PM 33° Partly Cloudy 3% 4 mph W 55%
3 PM 34° Partly Cloudy 3% 5 mph W 54%
15-Day Forecast
Today
7/1
Clear
3%
22°
36°
Thu
7/2
Fog
15%
22°
36°
Fri
7/3
Partly Cloudy
28%
23°
37°
Sat
7/4
Mostly Cloudy
28%
23°
34°
Sun
7/5
Clear
30%
22°
33°
Mon
7/6
Thunderstorm
64%
22°
33°
Tue
7/7
Rain
42%
20°
29°
Wed
7/8
Rain
69%
19°
31°
Thu
7/9
Rain
68%
21°
30°
Fri
7/10
Rain
68%
21°
31°
Sat
7/11
Drizzle
64%
19°
29°
Sun
7/12
Drizzle
60%
19°
29°
Mon
7/13
Drizzle
60%
19°
29°
Tue
7/14
Drizzle
60%
18°
29°
Wed
7/15
Drizzle
60%
18°
28°
71
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
71 AQI 19.7 µg/m³
O3
Ground-level ozone
47 AQI 51 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Thu 71 Moderate 47 71
Fri 62 Moderate 44 62
Sat 62 Moderate 45 62
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
SBCAPE2685 J/kg
MLCAPE1662 J/kg
MUCAPE2685 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index-6.1
Kinematics
0–6 km Shear9 kt
0–1 km Shear3 kt
Eff. Shear6 kt
0–1 km SRH3
0–3 km SRH-15
Eff. SRH-15
Storm Motion203° @ 19 kt
0–1 km EHI0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index18.0
Thermo & Levels
PWAT1.23 in
0–3 km LR7.4 °C/km
700–500 LR7.1 °C/km
Total Totals43.9
LCL806 hPa
LFC989 hPa
EL153 hPa
Freezing Lvl14,583 ft