McCormick County, South Carolina, United States

Last updated: 6:33 PM CDT · Refresh

80°F

Feels like 86°

Mostly Cloudy

▲ 93° / ▼ 67°

Wind

4 mph S

Humidity

82%

Dew Point

72°

Pressure

29.47 inHg

Visibility

10 mi

UV Index

1.1

Cloud Cover

84%

Sunrise

6:55 AM

Sunset

8:08 PM

Drag to pan · double-click to forecast a point

WeatherAI™ Analysis

WeatherAI Analysis: McCormick County is currently mostly cloudy at 80°F. Precipitation is likely — peak probability 65% around 9 PM. Atmospheric instability is elevated (CAPE up to 1354 J/kg) — isolated convective development possible. Sunrise: 6:55AM · Sunset: 8:08PM.

44 AQI · Good Dominant: O3 Air Quality

Hourly Forecast · Next 24 Hours

Now

80°

53%

8 PM

78°

59%

9 PM

74°

64%

10 PM

73°

62%

11 PM

72°

50%

12 AM

71°

41%

1 AM

71°

39%

2 AM

70°

24%

3 AM

70°

16%

4 AM

70°

13%

5 AM

67°

14%

6 AM

67°

7 AM

67°

8 AM

69°

9 AM

76°

10 AM

78°

11 AM

80°

12 PM

82°

1 PM

84°

2 PM

86°

14%

3 PM

87°

24%

4 PM

87°

25%

5 PM

88°

25%

6 PM

88°

28%

7-Day Forecast

Tonight

93° 67°

Mostly Cloudy with a 62% chance of rain.

Sat

92° 67°

Partly Cloudy with a 39% chance of rain.

Sun

94° 70°

Mostly Clear.

Mon

91° 65°

Partly Cloudy with a 53% chance of rain.

Tue

88° 66°

Rain, 64% chance.

Wed

91° 68°

Heavy Rain, 80% chance.

Thu

88° 67°

Rain, 83% chance.

+ Feels like

TimeTempConditionsPrecipWindHumidity

Now 80° Mostly Cloudy 53% 4 mph S 82%

8 PM 78° Overcast 59% 4 mph S 86%

9 PM 74° Mostly Cloudy 64% 4 mph SSE 90%

10 PM 73° Mostly Cloudy 62% 4 mph SSE 92%

11 PM 72° Mostly Cloudy 50% 4 mph SSE 94%

12 AM 71° Mostly Cloudy 41% 4 mph SE 95%

1 AM 71° Mostly Cloudy 39% 3 mph SE 96%

2 AM 70° Mostly Cloudy 24% 2 mph SSE 97%

3 AM 70° Overcast 16% 3 mph SSW 97%

4 AM 70° Mostly Cloudy 13% 3 mph SSW 97%

5 AM 67° Mostly Cloudy 14% 2 mph SSW 97%

6 AM 67° Mostly Cloudy 9% 2 mph SW 96%

7 AM 67° Mostly Cloudy 9% 2 mph SW 96%

8 AM 69° Mostly Cloudy 6% 2 mph WSW 92%

9 AM 76° Mostly Cloudy 6% 2 mph WSW 85%

10 AM 78° Partly Cloudy 6% 3 mph W 77%

11 AM 80° Partly Cloudy 7% 3 mph W 70%

12 PM 82° Partly Cloudy 7% 3 mph W 64%

1 PM 84° Partly Cloudy 7% 4 mph W 58%

2 PM 86° Partly Cloudy 14% 4 mph W 54%

3 PM 87° Partly Cloudy 24% 4 mph WSW 52%

4 PM 87° Partly Cloudy 25% 4 mph WSW 49%

5 PM 88° Partly Cloudy 25% 3 mph WSW 49%

6 PM 88° Mostly Clear 28% 4 mph SW 52%

15-Day Forecast

Today

8/21

Mostly Cloudy

62%

67°

93°

Sat

8/22

Partly Cloudy

39%

67°

92°

Sun

8/23

Mostly Clear

12%

70°

94°

Mon

8/24

Partly Cloudy

53%

65°

91°

Tue

8/25

Rain

64%

66°

88°

Wed

8/26

Heavy Rain

80%

68°

91°

Thu

8/27

Rain

83%

67°

88°

Fri

8/28

Rain

71%

72°

92°

Sat

8/29

Rain

73%

69°

94°

Sun

8/30

Drizzle

54%

68°

94°

Mon

8/31

Drizzle

52%

70°

101°

Tue

9/1

Drizzle

60%

73°

97°

Wed

9/2

Drizzle

60%

73°

93°

Thu

9/3

Drizzle

60%

72°

93°

Fri

9/4

Drizzle

60%

71°

93°

Good

U.S. Air Quality Index · Dominant: O3

50 100 150 200

Air quality is satisfactory and poses little or no health risk.

Pollutant Breakdown · Today

PM_2.5

Fine particulate matter

42 AQI 7.5 µg/m³

O₃

Ground-level ozone

Dominant

44 AQI 48 ppb

3-Day Outlook

DayAQICategoryO₃PM2.5

Sat 44 Good 44 42

Sun 43 Good 43 36

Mon 43 Good 40 43

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 Fri Aug 21, 22:00'Z' · F0 · 130 (13 km CONUS/NA)

Hodograph · kt

0–1 1–3 3–6 6–9 km

Instability

SBCAPE1152 J/kg

MLCAPE1159 J/kg

MUCAPE1644 J/kg

SBCIN-196 J/kg

MLCIN-132 J/kg

Lifted Index-4.0

Kinematics

0–6 km Shear19 kt

0–1 km Shear2 kt

Eff. Shear17 kt

0–1 km SRH18

0–3 km SRH60

Eff. SRH60

Storm Motion317° @ 16 kt

0–1 km EHI0.1

Composite Parameters

Sig. Tornado0.0

STP (eff)0.0

Supercell0.0

K-Index32.2

Thermo & Levels

PWAT1.74 in

0–3 km LR6.0 °C/km

700–500 LR5.5 °C/km

Total Totals47.6

LCL941 hPa

LFC777 hPa

EL193 hPa

Freezing Lvl14,177 ft

McCormick County, South Carolina, United States

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