Mercer County, Ohio, United States

Last updated: 5:14 AM CDT · Refresh

21°C

Feels like 23°

Partly Cloudy

▲ 29° / ▼ 19°

Wind

5 mph SSE

Humidity

96%

Dew Point

20°

Pressure

29.00 inHg

Visibility

9 mi

UV Index

0.0

Cloud Cover

47%

Sunrise

6:45 AM

Sunset

8:41 PM

Drag to pan · double-click to forecast a point

WeatherAI™ Analysis

WeatherAI Analysis: Mercer County is currently partly cloudy at 21°C. Precipitation is likely — peak probability 90% around 2 PM. Atmospheric instability is elevated (CAPE up to 3316 J/kg) — isolated convective development possible. Sunrise: 6:45AM · Sunset: 8:41PM.

57 AQI · Moderate Dominant: PM2.5 Air Quality

Hourly Forecast · Next 24 Hours

Now

21°

73%

7 AM

21°

83%

8 AM

21°

72%

9 AM

23°

87%

10 AM

24°

72%

11 AM

25°

72%

12 PM

26°

72%

1 PM

26°

86%

2 PM

26°

90%

3 PM

24°

90%

4 PM

23°

77%

5 PM

23°

68%

6 PM

23°

73%

7 PM

23°

70%

8 PM

23°

77%

9 PM

23°

81%

10 PM

21°

81%

11 PM

21°

78%

12 AM

21°

78%

1 AM

21°

71%

2 AM

20°

60%

3 AM

20°

63%

4 AM

20°

63%

5 AM

20°

63%

7-Day Forecast

Today

29° 19°

Heavy Rain, 90% chance.

Wed

29° 19°

Mostly Cloudy with a 78% chance of rain.

Thu

29° 19°

Rain, 81% chance.

Fri

27° 16°

Mostly Cloudy with a 65% chance of rain.

Sat

28° 15°

Drizzle, 52% chance.

Sun

32° 18°

Thunderstorm, 69% chance.

Mon

27° 17°

Rain, 56% chance.

+ Feels like

TimeTempConditionsPrecipWindHumidity

Now 21° Partly Cloudy 73% 5 mph SSE 96%

7 AM 21° Mostly Cloudy 83% 6 mph S 94%

8 AM 21° Overcast 72% 7 mph S 93%

9 AM 23° Heavy Rain 87% 8 mph S 93%

10 AM 24° Mostly Cloudy 72% 9 mph SSW 92%

11 AM 25° Mostly Cloudy 72% 10 mph SW 91%

12 PM 26° Mostly Cloudy 72% 10 mph SW 90%

1 PM 26° Overcast 86% 10 mph WSW 88%

2 PM 26° Overcast 90% 13 mph W 88%

3 PM 24° Heavy Rain 90% 12 mph W 91%

4 PM 23° Heavy Rain 77% 8 mph WSW 91%

5 PM 23° Heavy Rain 68% 9 mph SW 92%

6 PM 23° Rain 73% 10 mph WSW 93%

7 PM 23° Mostly Cloudy 70% 7 mph SW 93%

8 PM 23° Mostly Cloudy 77% 6 mph SW 94%

9 PM 23° Rain 81% 5 mph WSW 95%

10 PM 21° Rain 81% 4 mph S 96%

11 PM 21° Rain 78% 4 mph SSE 97%

12 AM 21° Rain 78% 4 mph S 97%

1 AM 21° Rain 71% 5 mph S 97%

2 AM 20° Rain 60% 5 mph SSW 97%

3 AM 20° Rain 63% 4 mph SSW 97%

4 AM 20° Overcast 63% 4 mph SSW 97%

5 AM 20° Overcast 63% 4 mph SSW 98%

15-Day Forecast

Today

8/11

Heavy Rain

90%

19°

29°

Wed

8/12

Mostly Cloudy

78%

19°

29°

Thu

8/13

Rain

81%

19°

29°

Fri

8/14

Mostly Cloudy

65%

16°

27°

Sat

8/15

Drizzle

52%

15°

28°

Sun

8/16

Thunderstorm

69%

18°

32°

Mon

8/17

Rain

56%

17°

27°

Tue

8/18

Partly Cloudy

34%

16°

28°

Wed

8/19

Rain

54%

18°

31°

Thu

8/20

Partly Cloudy

35%

18°

30°

Fri

8/21

Drizzle

60%

17°

28°

Sat

8/22

Drizzle

60%

16°

29°

Sun

8/23

Drizzle

60%

16°

28°

Mon

8/24

Drizzle

60%

14°

27°

Tue

8/25

Drizzle

60%

15°

28°

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

PM_2.5

Fine particulate matter

Dominant

57 AQI 12.2 µg/m³

O₃

Ground-level ozone

39 AQI 42 ppb

3-Day Outlook

DayAQICategoryO₃PM2.5

Today 57 Moderate 39 57

Wed 45 Good 33 45

Thu 34 Good 33 34

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. PM_2.5 (fine particles) is reported in µg/m³ and ozone (O₃) in ppb. Forecast source: NWS NAQFC.

Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio

RAP

Valid Tue Aug 11, 09:00'Z' · F0 · 130 (13 km CONUS/NA)

Hodograph · kt

0–1 1–3 3–6 6–9 km

Instability

SBCAPE425 J/kg

MLCAPE1421 J/kg

MUCAPE2965 J/kg

SBCIN-395 J/kg

MLCIN0 J/kg

Lifted Index-2.9

Kinematics

0–6 km Shear34 kt

0–1 km Shear24 kt

Eff. Shear38 kt

0–1 km SRH85

0–3 km SRH143

Eff. SRH145

Storm Motion307° @ 31 kt

0–1 km EHI0.2

Composite Parameters

Sig. Tornado0.1

STP (eff)0.9

Supercell8.4

K-Index36.2

Thermo & Levels

PWAT1.76 in

0–3 km LR4.2 °C/km

700–500 LR7.0 °C/km

Total Totals50.4

LCL969 hPa

LFC659 hPa

EL334 hPa

Freezing Lvl13,353 ft

Mercer County, Ohio, United States

Alerts