Heat Advisory — Stephens, GA, Franklin, GA, Hart, GA, Elbert, GA, Gaston, NC, Mecklenburg, NC, Cabarrus, NC, Union, NC, Cherokee, SC, York, SC, Anderson, SC, Abbeville, SC, Laurens, SC, Union, SC, Chester, SC, Greenwood, SC, Greater Oconee, SC, Greater Pickens, SC, Central Greenville, SC, Southern Greenville, SC, Northern Spartanburg, SC, Southern Spartanburg, SC 7:00 PM

Union County, North Carolina, United States

Last updated: 6:49 AM CDT  ·  Refresh
24°C
Feels like 28°
Mostly Clear
▲ 35°  /  ▼ 23°
Wind
3 mph NNE
Humidity
87%
Dew Point
23°
Pressure
29.52 inHg
Visibility
10 mi
UV Index
3.5
Cloud Cover
22%
Sunrise
6:42 AM
Sunset
8:09 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Union County is currently mostly clear at 25°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2098 J/kg) — isolated convective development possible. Sunrise: 6:42AM · Sunset: 8:09PM.

Alerts

Heat Advisory
Stephens, GA, Franklin, GA, Hart, GA, Elbert, GA, Gaston, NC, Mecklenburg, NC, Cabarrus, NC, Union, NC, Cherokee, SC, York, SC, Anderson, SC, Abbeville, SC, Laurens, SC, Union, SC, Chester, SC, Greenwood, SC, Greater Oconee, SC, Greater Pickens, SC, Central Greenville, SC, Southern Greenville, SC, Northern Spartanburg, SC, Southern Spartanburg, SC
Expires 7:00 PM
47 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
24°
16%
8 AM
25°
34%
9 AM
27°
28%
10 AM
29°
29%
11 AM
31°
27%
12 PM
32°
30%
1 PM
34°
38%
2 PM
34°
35%
3 PM
34°
35%
4 PM
33°
35%
5 PM
32°
26%
6 PM
31°
18%
7 PM
29°
13%
8 PM
28°
14%
9 PM
27°
14%
10 PM
26°
14%
11 PM
26°
5%
12 AM
26°
5%
1 AM
25°
5%
2 AM
24°
5%
3 AM
24°
5%
4 AM
24°
5%
5 AM
23°
3%
6 AM
23°
3%
7-Day Forecast
Today
35° 23°
Mostly Clear with a 38% chance of rain.
Mon
39° 23°
Clear with a 21% chance of rain.
Tue
38° 21°
Partly Cloudy with a 57% chance of rain.
Wed
35° 19°
Partly Cloudy.
Thu
38° 22°
Rain, 71% chance.
Fri
33° 20°
Rain, 90% chance.
Sat
32° 18°
Heavy Rain, 90% chance.
TimeTempConditionsPrecipWindHumidity
Now 24° Mostly Clear 16% 3 mph NNE 87%
8 AM 25° Clear 34% 3 mph NE 79%
9 AM 27° Mostly Clear 28% 2 mph ENE 72%
10 AM 29° Mostly Clear 29% 2 mph SE 65%
11 AM 31° Mostly Clear 27% 2 mph SSW 60%
12 PM 32° Mostly Clear 30% 3 mph WSW 57%
1 PM 34° Mostly Clear 38% 4 mph WSW 53%
2 PM 34° Partly Cloudy 35% 4 mph WSW 54%
3 PM 34° Partly Cloudy 35% 4 mph SW 55%
4 PM 33° Mostly Clear 35% 6 mph S 56%
5 PM 32° Partly Cloudy 26% 6 mph S 61%
6 PM 31° Partly Cloudy 18% 6 mph S 66%
7 PM 29° Partly Cloudy 13% 7 mph SSE 72%
8 PM 28° Partly Cloudy 14% 7 mph S 76%
9 PM 27° Partly Cloudy 14% 6 mph S 78%
10 PM 26° Partly Cloudy 14% 6 mph S 80%
11 PM 26° Partly Cloudy 5% 6 mph S 82%
12 AM 26° Partly Cloudy 5% 6 mph S 84%
1 AM 25° Partly Cloudy 5% 6 mph S 86%
2 AM 24° Mostly Clear 5% 6 mph SSW 87%
3 AM 24° Mostly Clear 5% 6 mph SSW 87%
4 AM 24° Clear 5% 6 mph SW 88%
5 AM 23° Clear 3% 6 mph SW 87%
6 AM 23° Clear 3% 6 mph SW 86%
15-Day Forecast
Today
8/16
Mostly Clear
38%
23°
35°
Mon
8/17
Clear
21%
23°
39°
Tue
8/18
Partly Cloudy
57%
21°
38°
Wed
8/19
Partly Cloudy
15%
19°
35°
Thu
8/20
Rain
71%
22°
38°
Fri
8/21
Rain
90%
20°
33°
Sat
8/22
Heavy Rain
90%
18°
32°
Sun
8/23
Rain
68%
19°
32°
Mon
8/24
Rain
68%
19°
33°
Tue
8/25
Drizzle
63%
21°
34°
Wed
8/26
Drizzle
60%
21°
34°
Thu
8/27
Drizzle
60%
21°
34°
Fri
8/28
Drizzle
60%
20°
31°
Sat
8/29
Drizzle
60%
20°
31°
Sun
8/30
Drizzle
60%
20°
32°
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 8.6 µg/m³
O3
Ground-level ozone
43 AQI 46 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Mon 47 Good 43 47
Tue 52 Moderate 51 52
Wed 49 Good 49 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 Sun Aug 16, 10:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE437 J/kg
MLCAPE318 J/kg
MUCAPE709 J/kg
SBCIN-152 J/kg
MLCIN-107 J/kg
Lifted Index-1.8
Kinematics
0–6 km Shear12 kt
0–1 km Shear3 kt
Eff. Shear11 kt
0–1 km SRH17
0–3 km SRH27
Eff. SRH27
Storm Motion346° @ 17 kt
0–1 km EHI0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index35.2
Thermo & Levels
PWAT2.07 in
0–3 km LR4.7 °C/km
700–500 LR5.5 °C/km
Total Totals45.1
LCL972 hPa
LFC725 hPa
EL223 hPa
Freezing Lvl15,528 ft