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: 3:54 PM CDT  ·  Refresh
33°C
Feels like 41°
Clear
▲ 34°  /  ▼ 22°
Wind
10 mph SW
Humidity
60%
Dew Point
23°
Pressure
29.10 inHg
Visibility
10 mi
UV Index
7.8
Cloud Cover
0%
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 33°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 3442 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
33°
3%
5 PM
34°
3%
6 PM
34°
3%
7 PM
32°
3%
8 PM
31°
3%
9 PM
28°
3%
10 PM
27°
3%
11 PM
26°
3%
12 AM
26°
3%
1 AM
24°
3%
2 AM
24°
3%
3 AM
23°
3%
4 AM
23°
3%
5 AM
22°
3%
6 AM
22°
16%
7 AM
23°
16%
8 AM
24°
16%
9 AM
27°
3%
10 AM
28°
3%
11 AM
30°
3%
12 PM
31°
3%
1 PM
32°
3%
2 PM
32°
3%
3 PM
32°
3%
7-Day Forecast
Today
34° 22°
Clear.
Thu
34° 22°
Fog.
Fri
36° 23°
Partly Cloudy with a 28% chance of rain.
Sat
32° 22°
Overcast with a 31% chance of rain.
Sun
32° 22°
Rain, 65% chance.
Mon
32° 21°
Thunderstorm, 64% chance.
Tue
30° 20°
Rain, 28% chance.
TimeTempConditionsPrecipWindHumidity
Now 33° Clear 3% 10 mph SW 60%
5 PM 34° Clear 3% 9 mph WSW 62%
6 PM 34° Clear 3% 8 mph WSW 65%
7 PM 32° Clear 3% 6 mph WSW 70%
8 PM 31° Clear 3% 5 mph WSW 74%
9 PM 28° Clear 3% 5 mph SW 78%
10 PM 27° Clear 3% 5 mph SW 82%
11 PM 26° Clear 3% 5 mph SW 83%
12 AM 26° Mostly Clear 3% 4 mph SW 84%
1 AM 24° Mostly Clear 3% 4 mph SW 86%
2 AM 24° Mostly Clear 3% 4 mph SW 88%
3 AM 23° Partly Cloudy 3% 4 mph WSW 90%
4 AM 23° Partly Cloudy 3% 3 mph WSW 92%
5 AM 22° Partly Cloudy 3% 3 mph W 91%
6 AM 22° Partly Cloudy 16% 3 mph W 91%
7 AM 23° Fog 16% 2 mph WSW 89%
8 AM 24° Partly Cloudy 16% 2 mph W 84%
9 AM 27° Partly Cloudy 3% 3 mph W 79%
10 AM 28° Partly Cloudy 3% 4 mph W 75%
11 AM 30° Partly Cloudy 3% 4 mph W 72%
12 PM 31° Partly Cloudy 3% 4 mph WSW 69%
1 PM 32° Mostly Clear 3% 4 mph WSW 67%
2 PM 32° Mostly Clear 3% 5 mph WSW 66%
3 PM 32° Clear 3% 5 mph WSW 65%
15-Day Forecast
Today
7/1
Clear
3%
22°
34°
Thu
7/2
Fog
16%
22°
34°
Fri
7/3
Partly Cloudy
28%
23°
36°
Sat
7/4
Overcast
31%
22°
32°
Sun
7/5
Rain
65%
22°
32°
Mon
7/6
Thunderstorm
64%
21°
32°
Tue
7/7
Rain
28%
20°
30°
Wed
7/8
Rain
69%
18°
29°
Thu
7/9
Rain
68%
18°
30°
Fri
7/10
Rain
68%
18°
29°
Sat
7/11
Drizzle
64%
18°
29°
Sun
7/12
Drizzle
60%
18°
30°
Mon
7/13
Drizzle
60%
18°
30°
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, 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
SBCAPE3707 J/kg
MLCAPE2956 J/kg
MUCAPE3707 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index-7.8
Kinematics
0–6 km Shear9 kt
0–1 km Shear1 kt
Eff. Shear4 kt
0–1 km SRH2
0–3 km SRH-46
Eff. SRH-46
Storm Motion232° @ 20 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index21.7
Thermo & Levels
PWAT1.36 in
0–3 km LR6.9 °C/km
700–500 LR7.1 °C/km
Total Totals47.3
LCL848 hPa
LFC985 hPa
EL139 hPa
Freezing Lvl14,324 ft