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 7:00 PM

Union County, Arkansas, United States

Last updated: 11:41 AM CDT  ·  Refresh
33°C
Feels like 37°
Clear
▲ 38°  /  ▼ 23°
Wind
3 mph ENE
Humidity
48%
Dew Point
22°
Pressure
29,71 inHg
Visibility
10 mi
UV Index
8,7
Cloud Cover
1%
Sunrise
6:48 AM
Sunset
7:27 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Union County is currently clear at 34°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1611 J/kg) — isolated convective development possible. Sunrise: 6:48AM · Sunset: 7:27PM.

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 7:00 PM
48 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
33°
3%
12 PM
35°
3%
1 PM
38°
4%
2 PM
38°
4%
3 PM
38°
4%
4 PM
38°
15%
5 PM
37°
15%
6 PM
36°
16%
7 PM
34°
19%
8 PM
32°
30%
9 PM
30°
16%
10 PM
29°
5%
11 PM
29°
5%
12 AM
28°
5%
1 AM
27°
5%
2 AM
26°
5%
3 AM
26°
5%
4 AM
25°
5%
5 AM
23°
5%
6 AM
23°
5%
7 AM
24°
21%
8 AM
26°
21%
9 AM
31°
22%
10 AM
32°
28%
7-Day Forecast
Today
38° 23°
Mostly Clear with a 30% chance of rain.
Tue
41° 23°
Mostly Clear with a 34% chance of rain.
Wed
39° 22°
Clear.
Thu
37° 21°
Mostly Cloudy with a 54% chance of rain.
Fri
38° 18°
Rain, 30% chance.
Sat
39° 19°
Clear.
Sun
38° 21°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 33° Clear 3% 3 mph ENE 48%
12 PM 35° Clear 3% 4 mph ENE 40%
1 PM 38° Clear 4% 4 mph ENE 36%
2 PM 38° Clear 4% 4 mph ENE 34%
3 PM 38° Clear 4% 5 mph ENE 33%
4 PM 38° Mostly Clear 15% 5 mph ENE 34%
5 PM 37° Mostly Clear 15% 4 mph ENE 37%
6 PM 36° Partly Cloudy 16% 5 mph E 40%
7 PM 34° Partly Cloudy 19% 5 mph E 44%
8 PM 32° Partly Cloudy 30% 4 mph ENE 47%
9 PM 30° Mostly Clear 16% 3 mph ENE 51%
10 PM 29° Mostly Clear 5% 3 mph E 54%
11 PM 29° Clear 5% 4 mph E 56%
12 AM 28° Clear 5% 4 mph E 58%
1 AM 27° Clear 5% 4 mph E 61%
2 AM 26° Clear 5% 3 mph ESE 64%
3 AM 26° Clear 5% 3 mph ESE 67%
4 AM 25° Clear 5% 3 mph E 69%
5 AM 23° Clear 5% 2 mph E 71%
6 AM 23° Clear 5% 2 mph E 73%
7 AM 24° Clear 21% 2 mph E 69%
8 AM 26° Clear 21% 2 mph ESE 64%
9 AM 31° Clear 22% 3 mph SE 58%
10 AM 32° Clear 28% 3 mph SE 53%
15-Day Forecast
Today
9/7
Mostly Clear
30%
23°
38°
Tue
9/8
Mostly Clear
34%
23°
41°
Wed
9/9
Clear
12%
22°
39°
Thu
9/10
Mostly Cloudy
54%
21°
37°
Fri
9/11
Rain
30%
18°
38°
Sat
9/12
Clear
17%
19°
39°
Sun
9/13
Clear
17%
21°
38°
Mon
9/14
Drizzle
42%
20°
37°
Tue
9/15
Rain
44%
21°
38°
Wed
9/16
Drizzle
68%
16°
35°
Thu
9/17
Drizzle
60%
15°
36°
Fri
9/18
Drizzle
60%
20°
34°
Sat
9/19
Drizzle
60%
20°
34°
Sun
9/20
Drizzle
60%
19°
34°
Mon
9/21
Drizzle
60%
19°
34°
48
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
48 AQI 8.7 µg/m³
O3
Ground-level ozone
44 AQI 47 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Tue 48 Good 44 48
Wed 53 Moderate 42 53
Thu 51 Moderate 39 51
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 lun. sept. 7, 15:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE2023 J/kg
MLCAPE1529 J/kg
MUCAPE2296 J/kg
SBCIN-222 J/kg
MLCIN-58 J/kg
Lifted Index-5.1
Kinematics
0–6 km Shear10 kt
0–1 km Shear3 kt
Eff. Shear7 kt
0–1 km SRH5
0–3 km SRH-9
Eff. SRH-9
Storm Motion60° @ 20 kt
0–1 km EHI0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index36.5
Thermo & Levels
PWAT1.93 in
0–3 km LR7.5 °C/km
700–500 LR5.7 °C/km
Total Totals48.4
LCL853 hPa
LFC775 hPa
EL165 hPa
Freezing Lvl15,873 ft