Heat Advisory — Sevier, AR, Howard, AR, Little River, AR, Hempstead, AR, Nevada, AR, Miller, AR, Lafayette, AR, Columbia, AR, Union, AR, Caddo, LA, Bossier, LA, Webster, LA, Claiborne, LA, Lincoln, LA, Union, LA, De Soto, LA, Red River, LA, Bienville, LA, Jackson, LA, Ouachita, LA, Sabine, LA, Natchitoches, LA, Winn, LA, Grant, LA, Caldwell, LA, La Salle, LA, McCurtain, OK, Red River, TX, Bowie, TX, Franklin, TX, Titus, TX, Camp, TX, Morris, TX, Cass, TX, Wood, TX, Upshur, TX, Marion, TX, Smith, TX, Gregg, TX, Harrison, TX, Cherokee, TX, Rusk, TX, Panola, TX, Nacogdoches, TX, Shelby, TX, Angelina, TX, San Augustine, TX, Sabine, TX 8:00 PM

Union County, Arkansas, United States

Last updated: 4:25 AM CDT  ·  Refresh
25°C
Feels like 28°
Clear
▲ 37°  /  ▼ 25°
Wind
3 mph SW
Humidity
77%
Dew Point
22°
Pressure
29.61 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
6%
Sunrise
6:20 AM
Sunset
8:12 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Union County is currently clear at 25°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 980 J/kg) — isolated convective development possible. Sunrise: 6:20AM · Sunset: 8:12PM.

Alerts

Heat Advisory
Sevier, AR, Howard, AR, Little River, AR, Hempstead, AR, Nevada, AR, Miller, AR, Lafayette, AR, Columbia, AR, Union, AR, Caddo, LA, Bossier, LA, Webster, LA, Claiborne, LA, Lincoln, LA, Union, LA, De Soto, LA, Red River, LA, Bienville, LA, Jackson, LA, Ouachita, LA, Sabine, LA, Natchitoches, LA, Winn, LA, Grant, LA, Caldwell, LA, La Salle, LA, McCurtain, OK, Red River, TX, Bowie, TX, Franklin, TX, Titus, TX, Camp, TX, Morris, TX, Cass, TX, Wood, TX, Upshur, TX, Marion, TX, Smith, TX, Gregg, TX, Harrison, TX, Cherokee, TX, Rusk, TX, Panola, TX, Nacogdoches, TX, Shelby, TX, Angelina, TX, San Augustine, TX, Sabine, TX
Expires 8:00 PM
52 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
25°
3%
5 AM
23°
21%
6 AM
23°
21%
7 AM
24°
21%
8 AM
26°
21%
9 AM
29°
21%
10 AM
31°
21%
11 AM
32°
15%
12 PM
33°
15%
1 PM
36°
3%
2 PM
36°
3%
3 PM
37°
3%
4 PM
37°
3%
5 PM
37°
3%
6 PM
36°
3%
7 PM
34°
3%
8 PM
33°
3%
9 PM
31°
3%
10 PM
29°
3%
11 PM
28°
3%
12 AM
27°
3%
1 AM
28°
3%
2 AM
28°
3%
3 AM
27°
3%
7-Day Forecast
Today
37° 25°
Partly Cloudy with a 21% chance of rain.
Wed
38° 26°
Partly Cloudy with a 53% chance of rain.
Thu
34° 23°
Partly Cloudy with a 69% chance of rain.
Fri
37° 23°
Overcast with a 32% chance of rain.
Sat
36° 21°
Clear.
Sun
34° 18°
Clear.
Mon
36° 21°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 25° Clear 3% 3 mph SW 77%
5 AM 23° Clear 21% 4 mph SW 76%
6 AM 23° Clear 21% 4 mph SW 76%
7 AM 24° Clear 21% 5 mph WSW 74%
8 AM 26° Clear 21% 7 mph WSW 68%
9 AM 29° Clear 21% 7 mph W 61%
10 AM 31° Mostly Clear 21% 7 mph W 55%
11 AM 32° Partly Cloudy 15% 6 mph W 51%
12 PM 33° Partly Cloudy 15% 6 mph W 46%
1 PM 36° Partly Cloudy 3% 5 mph WSW 43%
2 PM 36° Partly Cloudy 3% 5 mph WSW 41%
3 PM 37° Mostly Cloudy 3% 5 mph SW 40%
4 PM 37° Mostly Cloudy 3% 5 mph SW 40%
5 PM 37° Partly Cloudy 3% 5 mph SW 41%
6 PM 36° Mostly Cloudy 3% 5 mph SW 43%
7 PM 34° Mostly Cloudy 3% 4 mph SW 46%
8 PM 33° Mostly Cloudy 3% 4 mph SSW 49%
9 PM 31° Mostly Cloudy 3% 4 mph SSW 51%
10 PM 29° Mostly Cloudy 3% 4 mph SSW 54%
11 PM 28° Mostly Cloudy 3% 5 mph SSW 56%
12 AM 27° Mostly Cloudy 3% 5 mph SSW 57%
1 AM 28° Partly Cloudy 3% 5 mph SW 59%
2 AM 28° Partly Cloudy 3% 5 mph SW 59%
3 AM 27° Partly Cloudy 3% 5 mph SW 60%
15-Day Forecast
Today
7/28
Partly Cloudy
21%
25°
37°
Wed
7/29
Partly Cloudy
53%
26°
38°
Thu
7/30
Partly Cloudy
69%
23°
34°
Fri
7/31
Overcast
32%
23°
37°
Sat
8/1
Clear
16%
21°
36°
Sun
8/2
Clear
17%
18°
34°
Mon
8/3
Clear
17%
21°
36°
Tue
8/4
Rain
68%
23°
37°
Wed
8/5
Rain
68%
21°
37°
Thu
8/6
Clear
44%
22°
37°
Fri
8/7
Drizzle
60%
24°
36°
Sat
8/8
Drizzle
60%
24°
36°
Sun
8/9
Drizzle
60%
24°
36°
Mon
8/10
Drizzle
60%
24°
36°
Tue
8/11
Drizzle
60%
24°
37°
52
Moderate
U.S. Air Quality Index · Dominant: PM2.5
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
Dominant
52 AQI 9.7 µg/m³
O3
Ground-level ozone
36 AQI 39 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 52 Moderate 36 52
Wed 51 Moderate 34 51
Thu 54 Moderate 34 54
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 LCL0°C Temperature (°C) Pressure (hPa)
Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio
RAP
Valid Tue Jul 28, 08:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE0 J/kg
MLCAPE120 J/kg
MUCAPE368 J/kg
SBCIN-3074 J/kg
MLCIN0 J/kg
Lifted Index1.2
Kinematics
0–6 km Shear11 kt
0–1 km Shear12 kt
Eff. Shear23 kt
0–1 km SRH8
0–3 km SRH42
Eff. SRH34
Storm Motion261° @ 17 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.2
K-Index19.6
Thermo & Levels
PWAT1.58 in
0–3 km LR4.3 °C/km
700–500 LR5.4 °C/km
Total Totals42.1
LCL953 hPa
LFC—
EL—
Freezing Lvl17,260 ft