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

Calhoun County, South Carolina, 29135, United States

Last updated: 4:12 PM CDT  ·  Refresh
34°C
Feels like 38°
Mostly Clear
▲ 34°  /  ▼ 21°
Wind
9 mph SW
Humidity
49%
Dew Point
22°
Pressure
29.65 inHg
Visibility
10 mi
UV Index
6.5
Cloud Cover
22%
Sunrise
6:49 AM
Sunset
8:02 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Calhoun County is currently mostly clear at 34°C. Precipitation is likely — peak probability 90% around 8 PM. Atmospheric instability is elevated (CAPE up to 1661 J/kg) — isolated convective development possible. Sunrise: 6:49AM · Sunset: 8:02PM.

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
47 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
34°
58%
6 PM
32°
83%
7 PM
29°
88%
8 PM
27°
90%
9 PM
27°
73%
10 PM
24°
63%
11 PM
24°
53%
12 AM
23°
53%
1 AM
23°
44%
2 AM
23°
32%
3 AM
23°
32%
4 AM
22°
27%
5 AM
22°
27%
6 AM
21°
27%
7 AM
21°
32%
8 AM
22°
34%
9 AM
23°
46%
10 AM
24°
42%
11 AM
25°
42%
12 PM
27°
45%
1 PM
27°
50%
2 PM
30°
46%
3 PM
30°
46%
4 PM
31°
46%
7-Day Forecast
Today
34° 21°
Mostly Clear with a 90% chance of rain.
Sat
33° 21°
Rain, 48% chance.
Sun
34° 21°
Mostly Clear.
Mon
34° 20°
Clear with a 60% chance of rain.
Tue
32° 21°
Drizzle, 51% chance.
Wed
34° 21°
Rain, 70% chance.
Thu
32° 23°
Rain, 82% chance.
TimeTempConditionsPrecipWindHumidity
Now 34° Mostly Clear 58% 9 mph SW 49%
6 PM 32° Mostly Cloudy 83% 9 mph W 60%
7 PM 29° Mostly Cloudy 88% 4 mph SSW 74%
8 PM 27° Overcast 90% 8 mph SSE 85%
9 PM 27° Overcast 73% 4 mph SE 88%
10 PM 24° Overcast 63% 4 mph ESE 90%
11 PM 24° Overcast 53% 4 mph ENE 92%
12 AM 23° Overcast 53% 4 mph ENE 94%
1 AM 23° Mostly Cloudy 44% 4 mph ENE 95%
2 AM 23° Mostly Cloudy 32% 4 mph E 96%
3 AM 23° Overcast 32% 2 mph E 96%
4 AM 22° Overcast 27% 2 mph ESE 96%
5 AM 22° Haze 27% 2 mph SSW 96%
6 AM 21° Haze 27% 2 mph SW 95%
7 AM 21° Fog 32% 2 mph SW 94%
8 AM 22° Rain 34% 2 mph SSW 92%
9 AM 23° Partly Cloudy 46% 2 mph SSW 86%
10 AM 24° Partly Cloudy 42% 3 mph SW 81%
11 AM 25° Partly Cloudy 42% 3 mph SW 76%
12 PM 27° Partly Cloudy 45% 4 mph SW 72%
1 PM 27° Partly Cloudy 50% 4 mph SW 68%
2 PM 30° Rain 46% 5 mph SW 64%
3 PM 30° Rain 46% 4 mph SW 63%
4 PM 31° Rain 46% 4 mph SW 61%
15-Day Forecast
Today
8/21
Mostly Clear
90%
21°
34°
Sat
8/22
Rain
48%
21°
33°
Sun
8/23
Mostly Clear
7%
21°
34°
Mon
8/24
Clear
60%
20°
34°
Tue
8/25
Drizzle
51%
21°
32°
Wed
8/26
Rain
70%
21°
34°
Thu
8/27
Rain
82%
23°
32°
Fri
8/28
Drizzle
72%
20°
34°
Sat
8/29
Drizzle
44%
23°
32°
Sun
8/30
Rain
68%
21°
34°
Mon
8/31
Drizzle
60%
24°
35°
Tue
9/1
Drizzle
60%
23°
36°
Wed
9/2
Drizzle
60%
23°
35°
Thu
9/3
Drizzle
60%
22°
34°
Fri
9/4
Drizzle
60%
22°
34°
47
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
47 AQI 8.5 µg/m³
O3
Ground-level ozone
34 AQI 37 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Sat 47 Good 34 47
Sun 39 Good 39 35
Mon 40 Good 36 40
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
SBCAPE2390 J/kg
MLCAPE1805 J/kg
MUCAPE2390 J/kg
SBCIN-11 J/kg
MLCIN-21 J/kg
Lifted Index-6.8
Kinematics
0–6 km Shear5 kt
0–1 km Shear8 kt
Eff. Shear4 kt
0–1 km SRH9
0–3 km SRH57
Eff. SRH57
Storm Motion300° @ 11 kt
0–1 km EHI0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index38.3
Thermo & Levels
PWAT2.12 in
0–3 km LR8.0 °C/km
700–500 LR5.9 °C/km
Total Totals50.5
LCL845 hPa
LFC824 hPa
EL151 hPa
Freezing Lvl14,757 ft