Severe Thunderstorm Warning — Chesterfield County, SC, Lancaster County, SC 4:45 PM Severe Thunderstorm Watch 8:00 PM Severe Thunderstorm Watch 8:00 PM Areal Flood Advisory — Chesterfield County, SC 7:15 PM

Chesterfield County, South Carolina, United States

Last updated: 4:13 PM CDT  ·  Refresh
86°F
Feels like 100°
Partly Cloudy
▲ 88°  /  ▼ 68°
Wind
6 mph E
Humidity
79%
Dew Point
74°
Pressure
29.62 inHg
Visibility
10 mi
UV Index
5.9
Cloud Cover
51%
Sunrise
6:45 AM
Sunset
8:01 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Chesterfield County is currently partly cloudy at 86°F. Precipitation is likely — peak probability 90% around 6 PM. Atmospheric instability is elevated (CAPE up to 1956 J/kg) — isolated convective development possible. Sunrise: 6:45AM · Sunset: 8:01PM.

Alerts

Severe Thunderstorm Warning
Chesterfield County, SC, Lancaster County, SC
Expires 4:45 PM
Severe Thunderstorm Watch
Expires 8:00 PM
Severe Thunderstorm Watch
Expires 8:00 PM
Areal Flood Advisory
Chesterfield County, SC
Expires 7:15 PM
46 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
86°
69%
6 PM
84°
90%
7 PM
80°
77%
8 PM
78°
78%
9 PM
77°
84%
10 PM
73°
84%
11 PM
72°
62%
12 AM
72°
62%
1 AM
72°
47%
2 AM
71°
36%
3 AM
71°
49%
4 AM
71°
49%
5 AM
71°
36%
6 AM
68°
37%
7 AM
68°
37%
8 AM
68°
36%
9 AM
71°
37%
10 AM
75°
37%
11 AM
77°
52%
12 PM
79°
52%
1 PM
80°
57%
2 PM
84°
57%
3 PM
85°
58%
4 PM
85°
48%
7-Day Forecast
Today
88° 68°
Partly Cloudy with a 78% chance of rain.
Sat
90° 68°
Partly Cloudy with a 52% chance of rain.
Sun
92° 68°
Clear.
Mon
91° 66°
Partly Cloudy with a 60% chance of rain.
Tue
88° 66°
Clear with a 51% chance of rain.
Wed
91° 68°
Rain, 70% chance.
Thu
88° 72°
Rain, 82% chance.
TimeTempConditionsPrecipWindHumidity
Now 86° Partly Cloudy 69% 6 mph E 79%
6 PM 84° Rain 90% 6 mph E 84%
7 PM 80° Heavy Rain 77% 8 mph E 86%
8 PM 78° Heavy Rain 78% 8 mph ENE 89%
9 PM 77° Heavy Rain 84% 7 mph E 91%
10 PM 73° Overcast 84% 6 mph E 93%
11 PM 72° Overcast 62% 5 mph ESE 95%
12 AM 72° Overcast 62% 5 mph SE 94%
1 AM 72° Overcast 47% 4 mph SE 94%
2 AM 71° Overcast 36% 4 mph SSE 94%
3 AM 71° Overcast 49% 3 mph S 95%
4 AM 71° Overcast 49% 2 mph E 95%
5 AM 71° Overcast 36% 2 mph ENE 95%
6 AM 68° Overcast 37% 2 mph NNE 95%
7 AM 68° Mostly Cloudy 37% 2 mph NE 94%
8 AM 68° Partly Cloudy 36% 2 mph E 93%
9 AM 71° Mostly Cloudy 37% 2 mph NE 88%
10 AM 75° Mostly Cloudy 37% 1 mph NW 83%
11 AM 77° Mostly Cloudy 52% 2 mph WNW 78%
12 PM 79° Mostly Cloudy 52% 2 mph W 75%
1 PM 80° Mostly Cloudy 57% 3 mph W 71%
2 PM 84° Rain 57% 4 mph W 67%
3 PM 85° Partly Cloudy 58% 4 mph W 66%
4 PM 85° Partly Cloudy 48% 4 mph W 64%
15-Day Forecast
Today
8/21
Partly Cloudy
78%
68°
88°
Sat
8/22
Partly Cloudy
52%
68°
90°
Sun
8/23
Clear
16%
68°
92°
Mon
8/24
Partly Cloudy
60%
66°
91°
Tue
8/25
Clear
51%
66°
88°
Wed
8/26
Rain
70%
68°
91°
Thu
8/27
Rain
82%
72°
88°
Fri
8/28
Drizzle
53%
67°
93°
Sat
8/29
Drizzle
44%
72°
89°
Sun
8/30
Drizzle
51%
69°
93°
Mon
8/31
Drizzle
60%
74°
93°
Tue
9/1
Drizzle
60%
73°
95°
Wed
9/2
Drizzle
60%
73°
93°
Thu
9/3
Drizzle
60%
71°
92°
Fri
9/4
Drizzle
60%
70°
92°
46
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
42 AQI 7.5 µg/m³
O3
Ground-level ozone
Dominant
46 AQI 50 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Sat 46 Good 46 42
Sun 42 Good 42 31
Mon 42 Good 41 42
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
SBCAPE2513 J/kg
MLCAPE2711 J/kg
MUCAPE3102 J/kg
SBCIN-2 J/kg
MLCIN-6 J/kg
Lifted Index-6.8
Kinematics
0–6 km Shear23 kt
0–1 km Shear4 kt
Eff. Shear22 kt
0–1 km SRH6
0–3 km SRH86
Eff. SRH86
Storm Motion292° @ 14 kt
0–1 km EHI0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell3.0
K-Index42.8
Thermo & Levels
PWAT2.48 in
0–3 km LR7.0 °C/km
700–500 LR5.8 °C/km
Total Totals51.8
LCL907 hPa
LFC882 hPa
EL149 hPa
Freezing Lvl14,934 ft