Heat Advisory — DeSoto, MS, Marshall, MS, Benton, MS, Tippah, MS, Alcorn, MS, Tishomingo, MS, Tate, MS, Prentiss, MS, Panola, MS, Lafayette, MS, Union, MS, Pontotoc, MS, Lee, MS, Itawamba, MS, Yalobusha, MS, Calhoun, MS, Chickasaw, MS, Monroe, MS, Lake, TN, Obion, TN, Weakley, TN, Henry, TN, Dyer, TN, Gibson, TN, Carroll, TN, Benton, TN, Lauderdale, TN, Tipton, TN, Haywood, TN, Crockett, TN, Madison, TN, Chester, TN, Henderson, TN, Decatur, TN, Shelby, TN, Fayette, TN, Hardeman, TN, McNairy, TN, Hardin, TN 8:00 PM

Union County, Mississippi, United States

Last updated: 3:49 PM CDT  ·  Refresh
36°C
Feels like 40°
Mostly Clear
▲ 36°  /  ▼ 22°
Wind
6 mph SSW
Humidity
42%
Dew Point
21°
Pressure
29.61 inHg
Visibility
10 mi
UV Index
7.9
Cloud Cover
16%
Sunrise
6:16 AM
Sunset
7:44 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Union County is currently mostly clear at 36°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1528 J/kg) — isolated convective development possible. Sunrise: 6:16AM · Sunset: 7:44PM.

Alerts

Heat Advisory
DeSoto, MS, Marshall, MS, Benton, MS, Tippah, MS, Alcorn, MS, Tishomingo, MS, Tate, MS, Prentiss, MS, Panola, MS, Lafayette, MS, Union, MS, Pontotoc, MS, Lee, MS, Itawamba, MS, Yalobusha, MS, Calhoun, MS, Chickasaw, MS, Monroe, MS, Lake, TN, Obion, TN, Weakley, TN, Henry, TN, Dyer, TN, Gibson, TN, Carroll, TN, Benton, TN, Lauderdale, TN, Tipton, TN, Haywood, TN, Crockett, TN, Madison, TN, Chester, TN, Henderson, TN, Decatur, TN, Shelby, TN, Fayette, TN, Hardeman, TN, McNairy, TN, Hardin, TN
Expires 8:00 PM
43 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
36°
3%
4 PM
36°
3%
5 PM
36°
23%
6 PM
34°
3%
7 PM
32°
3%
8 PM
31°
3%
9 PM
29°
3%
10 PM
28°
3%
11 PM
27°
3%
12 AM
26°
3%
1 AM
25°
3%
2 AM
24°
3%
3 AM
23°
3%
4 AM
23°
3%
5 AM
22°
3%
6 AM
22°
3%
7 AM
24°
3%
8 AM
26°
3%
9 AM
28°
3%
10 AM
31°
3%
11 AM
32°
3%
12 PM
32°
3%
1 PM
34°
3%
2 PM
34°
3%
7-Day Forecast
Today
36° 22°
Mostly Clear.
Sat
38° 22°
Clear.
Sun
41° 23°
Clear.
Mon
38° 26°
Mostly Clear with a 38% chance of rain.
Tue
39° 22°
Clear.
Wed
39° 24°
Clear.
Thu
37° 21°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 36° Mostly Clear 3% 6 mph SSW 42%
4 PM 36° Mostly Clear 3% 6 mph SW 42%
5 PM 36° Partly Cloudy 23% 5 mph SW 44%
6 PM 34° Partly Cloudy 3% 4 mph SW 48%
7 PM 32° Mostly Clear 3% 4 mph SSW 51%
8 PM 31° Clear 3% 4 mph S 53%
9 PM 29° Clear 3% 4 mph SSW 54%
10 PM 28° Clear 3% 4 mph SSW 55%
11 PM 27° Clear 3% 4 mph SSW 55%
12 AM 26° Clear 3% 4 mph SSW 56%
1 AM 25° Clear 3% 4 mph SSW 58%
2 AM 24° Clear 3% 4 mph SSW 60%
3 AM 23° Clear 3% 4 mph SSW 62%
4 AM 23° Clear 3% 4 mph SSW 64%
5 AM 22° Clear 3% 4 mph SSW 65%
6 AM 22° Clear 3% 4 mph SW 66%
7 AM 24° Clear 3% 5 mph SW 64%
8 AM 26° Clear 3% 6 mph WSW 61%
9 AM 28° Clear 3% 7 mph WSW 57%
10 AM 31° Clear 3% 7 mph WSW 53%
11 AM 32° Clear 3% 7 mph WSW 49%
12 PM 32° Clear 3% 6 mph WSW 46%
1 PM 34° Clear 3% 6 mph WSW 44%
2 PM 34° Clear 3% 6 mph WSW 44%
15-Day Forecast
Today
8/14
Mostly Clear
3%
22°
36°
Sat
8/15
Clear
3%
22°
38°
Sun
8/16
Clear
8%
23°
41°
Mon
8/17
Mostly Clear
38%
26°
38°
Tue
8/18
Clear
19%
22°
39°
Wed
8/19
Clear
19%
24°
39°
Thu
8/20
Clear
19%
21°
37°
Fri
8/21
Clear
60%
19°
36°
Sat
8/22
Drizzle
60%
16°
36°
Sun
8/23
Drizzle
60%
16°
36°
Mon
8/24
Drizzle
60%
18°
37°
Tue
8/25
Drizzle
60%
22°
37°
Wed
8/26
Drizzle
60%
23°
37°
Thu
8/27
Drizzle
60%
23°
37°
Fri
8/28
Drizzle
60%
23°
37°
43
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
43 AQI 7.7 µg/m³
O3
Ground-level ozone
33 AQI 37 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Sat 43 Good 33 43
Sun 47 Good 33 47
Mon 40 Good 34 40
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 14, 19:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE2442 J/kg
MLCAPE1076 J/kg
MUCAPE2442 J/kg
SBCIN0 J/kg
MLCIN-7 J/kg
Lifted Index-5.0
Kinematics
0–6 km Shear12 kt
0–1 km Shear3 kt
Eff. Shear11 kt
0–1 km SRH8
0–3 km SRH29
Eff. SRH29
Storm Motion21° @ 9 kt
0–1 km EHI0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index23.2
Thermo & Levels
PWAT1.66 in
0–3 km LR8.2 °C/km
700–500 LR6.0 °C/km
Total Totals46.8
LCL811 hPa
LFC1003 hPa
EL147 hPa
Freezing Lvl16,237 ft