Severe Thunderstorm Watch 8:00 PM Severe Thunderstorm Watch 8:00 PM

Richland County, South Carolina, United States

Last updated: 6:35 PM CDT  ·  Refresh
25°C
Feels like 29°
Overcast
▲ 33°  /  ▼ 20°
Wind
3 mph NE
Humidity
88%
Dew Point
23°
Pressure
29.63 inHg
Visibility
9 mi
UV Index
0.7
Cloud Cover
92%
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 overcast at 25°C. Precipitation is likely — peak probability 55% around 7 PM. Atmospheric instability is elevated (CAPE up to 1620 J/kg) — isolated convective development possible. Sunrise: 6:49AM · Sunset: 8:03PM.

Alerts

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
25°
55%
8 PM
26°
54%
9 PM
24°
53%
10 PM
23°
52%
11 PM
23°
52%
12 AM
23°
51%
1 AM
22°
43%
2 AM
22°
32%
3 AM
22°
40%
4 AM
22°
39%
5 AM
20°
38%
6 AM
20°
39%
7 AM
21°
47%
8 AM
21°
51%
9 AM
24°
41%
10 AM
25°
41%
11 AM
26°
33%
12 PM
27°
26%
1 PM
29°
34%
2 PM
30°
30%
3 PM
30°
30%
4 PM
30°
30%
5 PM
29°
31%
6 PM
30°
35%
7-Day Forecast
Tonight
33° 20°
Overcast with a 55% chance of rain.
Sat
33° 20°
Mostly Cloudy with a 47% chance of rain.
Sun
34° 22°
Mostly Clear.
Mon
32° 19°
Mostly Clear with a 53% chance of rain.
Tue
32° 19°
Drizzle, 45% chance.
Wed
33° 21°
Heavy Rain, 83% chance.
Thu
32° 21°
Rain, 80% chance.
TimeTempConditionsPrecipWindHumidity
Now 25° Overcast 55% 3 mph NE 88%
8 PM 26° Overcast 54% 5 mph E 92%
9 PM 24° Overcast 53% 6 mph ESE 92%
10 PM 23° Overcast 52% 6 mph ESE 92%
11 PM 23° Overcast 52% 5 mph SE 92%
12 AM 23° Overcast 51% 3 mph SSE 92%
1 AM 22° Overcast 43% 3 mph SSE 94%
2 AM 22° Overcast 32% 3 mph SSE 94%
3 AM 22° Overcast 40% 3 mph S 94%
4 AM 22° Overcast 39% 2 mph SSW 94%
5 AM 20° Overcast 38% 2 mph S 94%
6 AM 20° Mostly Cloudy 39% 2 mph SSE 94%
7 AM 21° Mostly Cloudy 47% 3 mph S 93%
8 AM 21° Mostly Cloudy 51% 3 mph SSW 90%
9 AM 24° Mostly Cloudy 41% 3 mph SW 84%
10 AM 25° Mostly Cloudy 41% 3 mph WSW 78%
11 AM 26° Mostly Cloudy 33% 3 mph WSW 74%
12 PM 27° Mostly Cloudy 26% 3 mph WSW 69%
1 PM 29° Mostly Cloudy 34% 3 mph WSW 65%
2 PM 30° Mostly Cloudy 30% 3 mph WSW 63%
3 PM 30° Mostly Cloudy 30% 3 mph WSW 62%
4 PM 30° Mostly Cloudy 30% 3 mph WSW 61%
5 PM 29° Partly Cloudy 31% 3 mph SW 62%
6 PM 30° Partly Cloudy 35% 3 mph SW 63%
15-Day Forecast
Today
8/21
Overcast
55%
20°
33°
Sat
8/22
Mostly Cloudy
47%
20°
33°
Sun
8/23
Mostly Clear
6%
22°
34°
Mon
8/24
Mostly Clear
53%
19°
32°
Tue
8/25
Drizzle
45%
19°
32°
Wed
8/26
Heavy Rain
83%
21°
33°
Thu
8/27
Rain
80%
21°
32°
Fri
8/28
Drizzle
56%
23°
33°
Sat
8/29
Rain
73%
22°
34°
Sun
8/30
Rain
72%
19°
34°
Mon
8/31
Drizzle
52%
21°
37°
Tue
9/1
Drizzle
60%
23°
36°
Wed
9/2
Drizzle
60%
23°
34°
Thu
9/3
Drizzle
60%
23°
34°
Fri
9/4
Drizzle
60%
22°
33°
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, 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
SBCAPE1098 J/kg
MLCAPE1173 J/kg
MUCAPE1685 J/kg
SBCIN-109 J/kg
MLCIN-89 J/kg
Lifted Index-4.1
Kinematics
0–6 km Shear21 kt
0–1 km Shear11 kt
Eff. Shear20 kt
0–1 km SRH31
0–3 km SRH82
Eff. SRH82
Storm Motion277° @ 20 kt
0–1 km EHI0.2
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell1.4
K-Index36.9
Thermo & Levels
PWAT2.28 in
0–3 km LR5.5 °C/km
700–500 LR5.3 °C/km
Total Totals47.2
LCL980 hPa
LFC804 hPa
EL192 hPa
Freezing Lvl14,003 ft