Marion County, South Carolina, United States

Last updated: 7:08 PM CDT  ·  Refresh
31°C
Feels like 33°
Partly Cloudy
▲ 34°  /  ▼ 25°
Wind
11 mph S
Humidity
55%
Dew Point
21°
Pressure
29.85 inHg
Visibility
10 mi
UV Index
0.7
Cloud Cover
33%
Sunrise
6:21 AM
Sunset
8:26 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Marion County is currently partly cloudy at 31°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1958 J/kg) — isolated convective development possible. Sunrise: 6:21AM · Sunset: 8:26PM.

Alerts

No active alerts for this location.
50 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
31°
4%
9 PM
30°
23%
10 PM
29°
23%
11 PM
28°
23%
12 AM
28°
21%
1 AM
28°
21%
2 AM
27°
3%
3 AM
27°
3%
4 AM
27°
3%
5 AM
27°
3%
6 AM
25°
3%
7 AM
26°
3%
8 AM
26°
3%
9 AM
28°
3%
10 AM
29°
3%
11 AM
30°
3%
12 PM
31°
3%
1 PM
32°
3%
2 PM
34°
3%
3 PM
36°
5%
4 PM
35°
5%
5 PM
35°
5%
6 PM
34°
10%
7 PM
34°
10%
7-Day Forecast
Tonight
34° 25°
Partly Cloudy with a 23% chance of rain.
Wed
37° 25°
Mostly Cloudy.
Thu
34° 24°
Mostly Cloudy with a 66% chance of rain.
Fri
32° 24°
Overcast with a 86% chance of rain.
Sat
30° 22°
Rain, 90% chance.
Sun
34° 21°
Rain, 78% chance.
Mon
37° 23°
Drizzle, 60% chance.
TimeTempConditionsPrecipWindHumidity
Now 31° Partly Cloudy 4% 11 mph S 55%
9 PM 30° Partly Cloudy 23% 10 mph S 61%
10 PM 29° Overcast 23% 12 mph S 68%
11 PM 28° Overcast 23% 12 mph SSW 74%
12 AM 28° Overcast 21% 12 mph SSW 76%
1 AM 28° Mostly Cloudy 21% 11 mph SSW 78%
2 AM 27° Mostly Cloudy 3% 11 mph SSW 80%
3 AM 27° Mostly Cloudy 3% 10 mph SSW 82%
4 AM 27° Overcast 3% 9 mph SSW 84%
5 AM 27° Overcast 3% 8 mph SSW 85%
6 AM 25° Overcast 3% 8 mph SSW 84%
7 AM 26° Overcast 3% 9 mph SSW 83%
8 AM 26° Overcast 3% 10 mph SW 80%
9 AM 28° Mostly Cloudy 3% 10 mph SW 72%
10 AM 29° Mostly Cloudy 3% 11 mph SW 64%
11 AM 30° Partly Cloudy 3% 12 mph SW 57%
12 PM 31° Partly Cloudy 3% 12 mph SW 52%
1 PM 32° Partly Cloudy 3% 13 mph SW 46%
2 PM 34° Partly Cloudy 3% 14 mph SW 43%
3 PM 36° Mostly Cloudy 5% 13 mph SSW 43%
4 PM 35° Mostly Cloudy 5% 13 mph SSW 43%
5 PM 35° Mostly Cloudy 5% 13 mph SSW 43%
6 PM 34° Mostly Cloudy 10% 12 mph SSW 46%
7 PM 34° Mostly Cloudy 10% 12 mph SSW 49%
15-Day Forecast
Today
7/21
Partly Cloudy
23%
25°
34°
Wed
7/22
Mostly Cloudy
10%
25°
37°
Thu
7/23
Mostly Cloudy
66%
24°
34°
Fri
7/24
Overcast
86%
24°
32°
Sat
7/25
Rain
90%
22°
30°
Sun
7/26
Rain
78%
21°
34°
Mon
7/27
Drizzle
60%
23°
37°
Tue
7/28
Drizzle
56%
24°
38°
Wed
7/29
Rain
90%
23°
36°
Thu
7/30
Drizzle
54%
23°
34°
Fri
7/31
Drizzle
60%
23°
35°
Sat
8/1
Drizzle
60%
23°
34°
Sun
8/2
Drizzle
60%
22°
34°
Mon
8/3
Drizzle
60%
23°
35°
Tue
8/4
Drizzle
60%
23°
36°
50
Good
U.S. Air Quality Index · Dominant: PM2.5
50 100 150 200

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

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
Dominant
50 AQI 9.1 µg/m³
O3
Ground-level ozone
34 AQI 37 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 50 Good 34 50
Thu 49 Good 37 49
Fri 46 Good 31 46
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 Tue Jul 21, 22:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE462 J/kg
MLCAPE37 J/kg
MUCAPE462 J/kg
SBCIN-182 J/kg
MLCIN0 J/kg
Lifted Index-3.3
Kinematics
0–6 km Shear20 kt
0–1 km Shear12 kt
Eff. Shear20 kt
0–1 km SRH-9
0–3 km SRH-36
Eff. SRH-36
Storm Motion210° @ 33 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index17.5
Thermo & Levels
PWAT1.46 in
0–3 km LR6.3 °C/km
700–500 LR6.3 °C/km
Total Totals41.3
LCL877 hPa
LFC675 hPa
EL216 hPa
Freezing Lvl16,165 ft