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

Spartanburg County, South Carolina, United States

Last updated: 6:34 PM CDT  ·  Refresh
27°C
Feels like 29°
Partly Cloudy
▲ 30°  /  ▼ 19°
Wind
6 mph ESE
Humidity
74%
Dew Point
22°
Pressure
29.08 inHg
Visibility
10 mi
UV Index
1.6
Cloud Cover
58%
Sunrise
6:52 AM
Sunset
8:08 PM
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WeatherAI™ Analysis

WeatherAI Analysis: Spartanburg County is currently partly cloudy at 27°C. Precipitation is likely — peak probability 88% around 9 PM. Atmospheric instability is elevated (CAPE up to 1151 J/kg) — isolated convective development possible. Sunrise: 6:52AM · Sunset: 8:08PM.

Alerts

Severe Thunderstorm Watch
Expires 8:00 PM
Severe Thunderstorm Watch
Expires 8:00 PM
51 AQI · Moderate Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
27°
51%
8 PM
26°
75%
9 PM
24°
87%
10 PM
22°
87%
11 PM
22°
62%
12 AM
21°
62%
1 AM
22°
56%
2 AM
22°
20%
3 AM
21°
20%
4 AM
21°
20%
5 AM
19°
20%
6 AM
19°
10%
7 AM
19°
7%
8 AM
20°
12%
9 AM
21°
20%
10 AM
23°
18%
11 AM
24°
27%
12 PM
25°
27%
1 PM
28°
27%
2 PM
28°
27%
3 PM
28°
33%
4 PM
28°
34%
5 PM
28°
37%
6 PM
28°
49%
7-Day Forecast
Tonight
30° 19°
Partly Cloudy with a 87% chance of rain.
Sat
31° 19°
Rain, 56% chance.
Sun
32° 19°
Mostly Clear.
Mon
31° 16°
Mostly Clear with a 53% chance of rain.
Tue
31° 17°
Partly Cloudy.
Wed
32° 18°
Heavy Rain, 76% chance.
Thu
29° 19°
Rain, 73% chance.
TimeTempConditionsPrecipWindHumidity
Now 27° Partly Cloudy 51% 6 mph ESE 74%
8 PM 26° Mostly Cloudy 75% 7 mph ESE 80%
9 PM 24° Overcast 87% 6 mph E 87%
10 PM 22° Rain 87% 4 mph ENE 92%
11 PM 22° Rain 62% 3 mph ENE 94%
12 AM 21° Rain 62% 3 mph E 95%
1 AM 22° Rain 56% 3 mph E 96%
2 AM 22° Overcast 20% 3 mph ENE 96%
3 AM 21° Mostly Cloudy 20% 3 mph NE 96%
4 AM 21° Mostly Cloudy 20% 2 mph NNE 96%
5 AM 19° Mostly Cloudy 20% 2 mph NNE 96%
6 AM 19° Mostly Cloudy 10% 3 mph NE 95%
7 AM 19° Mostly Cloudy 7% 3 mph NE 94%
8 AM 20° Mostly Cloudy 12% 2 mph NNE 90%
9 AM 21° Mostly Cloudy 20% 2 mph NNE 83%
10 AM 23° Partly Cloudy 18% 2 mph N 76%
11 AM 24° Partly Cloudy 27% 2 mph N 69%
12 PM 25° Partly Cloudy 27% 2 mph NNW 62%
1 PM 28° Partly Cloudy 27% 2 mph WNW 56%
2 PM 28° Partly Cloudy 27% 2 mph WSW 54%
3 PM 28° Partly Cloudy 33% 3 mph SW 54%
4 PM 28° Partly Cloudy 34% 4 mph SW 54%
5 PM 28° Partly Cloudy 37% 4 mph SW 56%
6 PM 28° Mostly Clear 49% 3 mph WSW 59%
15-Day Forecast
Today
8/21
Partly Cloudy
87%
19°
30°
Sat
8/22
Rain
56%
19°
31°
Sun
8/23
Mostly Clear
6%
19°
32°
Mon
8/24
Mostly Clear
53%
16°
31°
Tue
8/25
Partly Cloudy
19%
17°
31°
Wed
8/26
Heavy Rain
76%
18°
32°
Thu
8/27
Rain
73%
19°
29°
Fri
8/28
Rain
66%
20°
33°
Sat
8/29
Rain
73%
19°
33°
Sun
8/30
Drizzle
53%
18°
33°
Mon
8/31
Drizzle
45%
19°
37°
Tue
9/1
Drizzle
60%
23°
35°
Wed
9/2
Drizzle
60%
23°
34°
Thu
9/3
Drizzle
60%
23°
33°
Fri
9/4
Drizzle
60%
23°
33°
51
Moderate
U.S. Air Quality Index · Dominant: O3
50 100 150 200

Air quality is acceptable. Unusually sensitive people should consider limiting prolonged outdoor exertion.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
43 AQI 7.8 µg/m³
O3
Ground-level ozone
Dominant
51 AQI 56 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Sat 51 Moderate 51 43
Sun 46 Good 43 46
Mon 48 Good 37 48
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 50 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE1153 J/kg
MLCAPE1689 J/kg
MUCAPE3208 J/kg
SBCIN-93 J/kg
MLCIN-33 J/kg
Lifted Index-3.3
Kinematics
0–6 km Shear20 kt
0–1 km Shear4 kt
Eff. Shear25 kt
0–1 km SRH0
0–3 km SRH93
Eff. SRH93
Storm Motion309° @ 18 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.5
Supercell3.8
K-Index35.0
Thermo & Levels
PWAT1.80 in
0–3 km LR6.5 °C/km
700–500 LR5.0 °C/km
Total Totals47.5
LCL914 hPa
LFC816 hPa
EL188 hPa
Freezing Lvl14,970 ft