Severe Thunderstorm Warning — Calhoun County, SC, Richland County, SC, Sumter County, SC 4:45 PM Severe Thunderstorm Watch 8:00 PM Severe Thunderstorm Watch 8:00 PM

Richland County, South Carolina, United States

Last updated: 4:14 PM CDT  ·  Refresh
31°C
Feels like 32°
Rain
▲ 33°  /  ▼ 21°
Wind
9 mph SSW
Humidity
52%
Dew Point
22°
Pressure
29.60 inHg
Visibility
7 mi
UV Index
3.3
Cloud Cover
87%
Sunrise
6:49 AM
Sunset
8:03 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Richland County is currently rain at 30°C. Precipitation is likely — peak probability 90% around 5 PM. Atmospheric instability is elevated (CAPE up to 1628 J/kg) — isolated convective development possible. Sunrise: 6:49AM · Sunset: 8:03PM.

Alerts

Severe Thunderstorm Warning
Calhoun County, SC, Richland County, SC, Sumter County, SC
Expires 4:45 PM
Severe Thunderstorm Watch
Expires 8:00 PM
Severe Thunderstorm Watch
Expires 8:00 PM
44 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
31°
90%
6 PM
29°
83%
7 PM
28°
78%
8 PM
26°
50%
9 PM
26°
51%
10 PM
24°
53%
11 PM
23°
50%
12 AM
23°
42%
1 AM
23°
31%
2 AM
23°
31%
3 AM
22°
41%
4 AM
22°
41%
5 AM
22°
33%
6 AM
21°
33%
7 AM
21°
37%
8 AM
21°
46%
9 AM
23°
46%
10 AM
24°
42%
11 AM
26°
42%
12 PM
27°
43%
1 PM
28°
47%
2 PM
29°
56%
3 PM
30°
48%
4 PM
31°
39%
7-Day Forecast
Today
33° 21°
Rain, 90% chance.
Sat
33° 21°
Rain, 46% chance.
Sun
34° 21°
Clear.
Mon
33° 20°
Partly Cloudy with a 60% chance of rain.
Tue
33° 20°
Drizzle, 51% chance.
Wed
34° 21°
Rain, 70% chance.
Thu
32° 23°
Rain, 82% chance.
TimeTempConditionsPrecipWindHumidity
Now 31° Rain 90% 9 mph SSW 52%
6 PM 29° Overcast 83% 6 mph NE 64%
7 PM 28° Overcast 78% 5 mph NNE 77%
8 PM 26° Overcast 50% 6 mph ESE 87%
9 PM 26° Overcast 51% 6 mph ESE 89%
10 PM 24° Overcast 53% 6 mph ESE 90%
11 PM 23° Overcast 50% 6 mph ESE 92%
12 AM 23° Overcast 42% 6 mph ESE 92%
1 AM 23° Overcast 31% 6 mph SE 92%
2 AM 23° Overcast 31% 5 mph SE 92%
3 AM 22° Overcast 41% 4 mph SE 93%
4 AM 22° Overcast 41% 3 mph SE 94%
5 AM 22° Overcast 33% 2 mph SSE 94%
6 AM 21° Mostly Cloudy 33% 2 mph SSE 94%
7 AM 21° Mostly Cloudy 37% 3 mph SSE 93%
8 AM 21° Rain 46% 3 mph SE 91%
9 AM 23° Partly Cloudy 46% 3 mph S 85%
10 AM 24° Partly Cloudy 42% 3 mph SSW 80%
11 AM 26° Partly Cloudy 42% 3 mph SSW 75%
12 PM 27° Partly Cloudy 43% 2 mph SSW 72%
1 PM 28° Partly Cloudy 47% 3 mph SW 69%
2 PM 29° Rain 56% 3 mph SW 66%
3 PM 30° Partly Cloudy 48% 3 mph SW 64%
4 PM 31° Partly Cloudy 39% 3 mph SW 61%
15-Day Forecast
Today
8/21
Rain
90%
21°
33°
Sat
8/22
Rain
46%
21°
33°
Sun
8/23
Clear
7%
21°
34°
Mon
8/24
Partly Cloudy
60%
20°
33°
Tue
8/25
Drizzle
51%
20°
33°
Wed
8/26
Rain
70%
21°
34°
Thu
8/27
Rain
82%
23°
32°
Fri
8/28
Drizzle
53%
20°
35°
Sat
8/29
Drizzle
44%
23°
33°
Sun
8/30
Rain
68%
21°
35°
Mon
8/31
Drizzle
60%
24°
36°
Tue
9/1
Drizzle
60%
23°
36°
Wed
9/2
Drizzle
60%
23°
36°
Thu
9/3
Drizzle
60%
22°
35°
Fri
9/4
Drizzle
60%
22°
34°
44
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
PM2.5
Fine particulate matter
44 AQI 7.9 µg/m³
O3
Ground-level ozone
Dominant
44 AQI 48 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Sat 44 Good 44 44
Sun 43 Good 43 34
Mon 39 Good 39 36
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 Fri Aug 21, 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
SBCAPE1465 J/kg
MLCAPE1916 J/kg
MUCAPE2630 J/kg
SBCIN-84 J/kg
MLCIN-50 J/kg
Lifted Index-4.7
Kinematics
0–6 km Shear8 kt
0–1 km Shear6 kt
Eff. Shear8 kt
0–1 km SRH9
0–3 km SRH59
Eff. SRH59
Storm Motion289° @ 14 kt
0–1 km EHI0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index37.5
Thermo & Levels
PWAT2.30 in
0–3 km LR6.8 °C/km
700–500 LR5.9 °C/km
Total Totals50.4
LCL883 hPa
LFC803 hPa
EL178 hPa
Freezing Lvl14,170 ft