Heat Advisory — 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, Marshall, MS, Benton, MS, Tippah, MS, Alcorn, MS, Tishomingo, MS, Tate, MS, Prentiss, MS, Panola, MS, Tallahatchie, MS, Lafayette, MS, Union, MS, Pontotoc, MS, Lee, MS, Itawamba, MS, Yalobusha, MS, Calhoun, MS, Chickasaw, MS, Monroe, MS 8:00 PM

Union County, Mississippi, United States

Last updated: 3:06 PM CDT  ·  Refresh
34°C
Feels like 38°
Partly Cloudy
▲ 34°  /  ▼ 21°
Wind
2 mph S
Humidity
52%
Dew Point
22°
Pressure
29.54 inHg
Visibility
10 mi
UV Index
8.8
Cloud Cover
31%
Sunrise
5:48 AM
Sunset
8:12 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Union County is currently partly cloudy at 34°C. Precipitation is likely — peak probability 74% around 12 PM. Atmospheric instability is elevated (CAPE up to 2150 J/kg) — isolated convective development possible. Sunrise: 5:48AM · Sunset: 8:12PM.

Alerts

Heat Advisory
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, Marshall, MS, Benton, MS, Tippah, MS, Alcorn, MS, Tishomingo, MS, Tate, MS, Prentiss, MS, Panola, MS, Tallahatchie, MS, Lafayette, MS, Union, MS, Pontotoc, MS, Lee, MS, Itawamba, MS, Yalobusha, MS, Calhoun, MS, Chickasaw, MS, Monroe, MS
Expires 8:00 PM
47 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
34°
42%
4 PM
34°
44%
5 PM
32°
49%
6 PM
30°
58%
7 PM
28°
65%
8 PM
27°
65%
9 PM
26°
45%
10 PM
25°
24%
11 PM
24°
27%
12 AM
24°
24%
1 AM
23°
23%
2 AM
23°
23%
3 AM
22°
12%
4 AM
22°
15%
5 AM
22°
20%
6 AM
22°
35%
7 AM
22°
44%
8 AM
23°
59%
9 AM
26°
55%
10 AM
28°
64%
11 AM
28°
69%
12 PM
28°
74%
1 PM
29°
74%
2 PM
31°
72%
7-Day Forecast
Today
34° 21°
Rain, 58% chance.
Sun
34° 22°
Mostly Cloudy with a 67% chance of rain.
Mon
33° 19°
Mostly Clear with a 49% chance of rain.
Tue
33° 20°
Mostly Clear with a 28% chance of rain.
Wed
33° 21°
Rain, 31% chance.
Thu
33° 22°
Rain, 82% chance.
Fri
33° 21°
Drizzle, 53% chance.
TimeTempConditionsPrecipWindHumidity
Now 34° Partly Cloudy 42% 2 mph S 52%
4 PM 34° Partly Cloudy 44% 2 mph SE 52%
5 PM 32° Mostly Cloudy 49% 4 mph W 59%
6 PM 30° Rain 58% 4 mph NNW 65%
7 PM 28° Rain 65% 6 mph WNW 74%
8 PM 27° Rain 65% 3 mph NW 80%
9 PM 26° Rain 45% 2 mph WNW 85%
10 PM 25° Partly Cloudy 24% 3 mph SSW 90%
11 PM 24° Partly Cloudy 27% 2 mph S 91%
12 AM 24° Partly Cloudy 24% 3 mph SW 91%
1 AM 23° Mostly Cloudy 23% 4 mph SW 92%
2 AM 23° Mostly Cloudy 23% 3 mph WNW 92%
3 AM 22° Fog 12% 3 mph N 93%
4 AM 22° Fog 15% 3 mph NNW 93%
5 AM 22° Fog 20% 2 mph NNW 93%
6 AM 22° Fog 35% 3 mph WNW 93%
7 AM 22° Fog 44% 3 mph WNW 92%
8 AM 23° Haze 59% 2 mph W 86%
9 AM 26° Mostly Cloudy 55% 3 mph W 80%
10 AM 28° Mostly Cloudy 64% 4 mph WSW 76%
11 AM 28° Drizzle 69% 4 mph W 73%
12 PM 28° Rain 74% 5 mph W 70%
1 PM 29° Rain 74% 6 mph W 68%
2 PM 31° Partly Cloudy 72% 5 mph W 69%
15-Day Forecast
Today
7/4
Rain
58%
21°
34°
Sun
7/5
Mostly Cloudy
67%
22°
34°
Mon
7/6
Mostly Clear
49%
19°
33°
Tue
7/7
Mostly Clear
28%
20°
33°
Wed
7/8
Rain
31%
21°
33°
Thu
7/9
Rain
82%
22°
33°
Fri
7/10
Drizzle
53%
21°
33°
Sat
7/11
Rain
69%
22°
33°
Sun
7/12
Rain
68%
19°
33°
Mon
7/13
Drizzle
51%
21°
31°
Tue
7/14
Drizzle
60%
16°
32°
Wed
7/15
Drizzle
60%
20°
32°
Thu
7/16
Drizzle
60%
21°
32°
Fri
7/17
Drizzle
90%
21°
31°
Sat
7/18
Drizzle
60%
21°
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 8.4 µg/m³
O3
Ground-level ozone
35 AQI 39 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Sun 47 Good 35 47
Mon 33 Good 33 31
Tue 37 Good 32 37
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 Sat Jul 4, 18:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE3117 J/kg
MLCAPE2327 J/kg
MUCAPE3117 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index-7.1
Kinematics
0–6 km Shear11 kt
0–1 km Shear1 kt
Eff. Shear9 kt
0–1 km SRH-2
0–3 km SRH-10
Eff. SRH-10
Storm Motion187° @ 16 kt
0–1 km EHI-0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index37.0
Thermo & Levels
PWAT1.99 in
0–3 km LR8.1 °C/km
700–500 LR5.7 °C/km
Total Totals48.3
LCL851 hPa
LFC1000 hPa
EL146 hPa
Freezing Lvl15,282 ft