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

Fairfield County, Ohio, United States

Last updated: 5:08 PM CDT  ·  Refresh
32°C
Feels like 40°
Clear
▲ 34°  /  ▼ 22°
Wind
8 mph SW
Humidity
65%
Dew Point
24°
Pressure
29.10 inHg
Visibility
9 mi
UV Index
6.1
Cloud Cover
2%
Sunrise
6:06 AM
Sunset
9:02 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Fairfield County is currently clear at 32°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 3630 J/kg) — isolated convective development possible. Sunrise: 6:06AM · Sunset: 9:02PM.

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
32°
3%
7 PM
33°
3%
8 PM
32°
3%
9 PM
30°
3%
10 PM
28°
3%
11 PM
27°
3%
12 AM
26°
3%
1 AM
26°
3%
2 AM
24°
3%
3 AM
24°
3%
4 AM
23°
3%
5 AM
23°
3%
6 AM
22°
3%
7 AM
23°
3%
8 AM
24°
3%
9 AM
26°
3%
10 AM
28°
3%
11 AM
29°
3%
12 PM
29°
3%
1 PM
32°
3%
2 PM
33°
3%
3 PM
33°
3%
4 PM
33°
3%
5 PM
34°
3%
7-Day Forecast
Tonight
34° 22°
Clear.
Thu
34° 22°
Mostly Clear.
Fri
35° 23°
Mostly Clear with a 28% chance of rain.
Sat
32° 22°
Mostly Cloudy with a 38% chance of rain.
Sun
32° 22°
Rain, 64% chance.
Mon
31° 21°
Thunderstorm, 64% chance.
Tue
29° 20°
Rain, 64% chance.
TimeTempConditionsPrecipWindHumidity
Now 32° Clear 3% 8 mph SW 65%
7 PM 33° Clear 3% 7 mph WSW 67%
8 PM 32° Clear 3% 6 mph WSW 71%
9 PM 30° Clear 3% 5 mph WSW 76%
10 PM 28° Clear 3% 5 mph SW 80%
11 PM 27° Clear 3% 4 mph SW 82%
12 AM 26° Clear 3% 4 mph SW 84%
1 AM 26° Mostly Clear 3% 4 mph SW 85%
2 AM 24° Mostly Clear 3% 4 mph SW 87%
3 AM 24° Mostly Clear 3% 4 mph WSW 88%
4 AM 23° Mostly Clear 3% 4 mph WSW 90%
5 AM 23° Mostly Clear 3% 3 mph WSW 91%
6 AM 22° Mostly Clear 3% 2 mph WSW 90%
7 AM 23° Mostly Clear 3% 2 mph W 90%
8 AM 24° Mostly Clear 3% 2 mph W 87%
9 AM 26° Mostly Clear 3% 3 mph W 83%
10 AM 28° Mostly Clear 3% 3 mph W 78%
11 AM 29° Mostly Clear 3% 4 mph W 73%
12 PM 29° Mostly Clear 3% 4 mph WSW 69%
1 PM 32° Mostly Clear 3% 4 mph WSW 67%
2 PM 33° Mostly Clear 3% 5 mph WSW 64%
3 PM 33° Mostly Clear 3% 5 mph WSW 64%
4 PM 33° Mostly Clear 3% 6 mph WSW 63%
5 PM 34° Clear 3% 6 mph WSW 63%
15-Day Forecast
Today
7/1
Clear
3%
22°
34°
Thu
7/2
Mostly Clear
3%
22°
34°
Fri
7/3
Mostly Clear
28%
23°
35°
Sat
7/4
Mostly Cloudy
38%
22°
32°
Sun
7/5
Rain
64%
22°
32°
Mon
7/6
Thunderstorm
64%
21°
31°
Tue
7/7
Rain
64%
20°
29°
Wed
7/8
Rain
63%
19°
29°
Thu
7/9
Rain
68%
18°
29°
Fri
7/10
Rain
68%
18°
28°
Sat
7/11
Drizzle
64%
18°
29°
Sun
7/12
Drizzle
60%
18°
29°
Mon
7/13
Drizzle
60%
18°
29°
Tue
7/14
Drizzle
60%
18°
29°
Wed
7/15
Drizzle
60%
17°
28°
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 18.0 µg/m³
O3
Ground-level ozone
38 AQI 42 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Thu 68 Moderate 38 68
Fri 56 Moderate 43 56
Sat 59 Moderate 40 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, 20:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE4050 J/kg
MLCAPE2992 J/kg
MUCAPE4050 J/kg
SBCIN-74 J/kg
MLCIN0 J/kg
Lifted Index-8.5
Kinematics
0–6 km Shear12 kt
0–1 km Shear4 kt
Eff. Shear6 kt
0–1 km SRH3
0–3 km SRH-39
Eff. SRH-39
Storm Motion239° @ 22 kt
0–1 km EHI0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index20.5
Thermo & Levels
PWAT1.34 in
0–3 km LR6.5 °C/km
700–500 LR7.3 °C/km
Total Totals47.1
LCL869 hPa
LFC729 hPa
EL137 hPa
Freezing Lvl14,377 ft