Extreme Heat Warning — Marshall, MS, Benton, MS, Tippah, MS, Alcorn, MS, Tishomingo, MS, Prentiss, MS, Lafayette, MS, Union, MS, Pontotoc, MS, Lee, MS, Itawamba, MS, Yalobusha, MS, Calhoun, MS, Chickasaw, MS, Monroe, MS, Benton, TN, Chester, TN, Henderson, TN, Decatur, TN, Hardeman, TN, McNairy, TN, Hardin, TN 8:00 PM Heat Advisory — Marshall, MS, Benton, MS, Tippah, MS, Alcorn, MS, Tishomingo, MS, Prentiss, MS, Lafayette, MS, Union, MS, Pontotoc, MS, Lee, MS, Itawamba, MS, Yalobusha, MS, Calhoun, MS, Chickasaw, MS, Monroe, MS, Benton, TN, Chester, TN, Henderson, TN, Decatur, TN, Hardeman, TN, McNairy, TN, Hardin, TN 8:00 PM

Union County, Mississippi, United States

Last updated: 12:35 AM CDT  ·  Refresh
27°C
Feels like 30°
Partly Cloudy
▲ 36°  /  ▼ 24°
Wind
2 mph SW
Humidity
88%
Dew Point
25°
Pressure
29.47 inHg
Visibility
9 mi
UV Index
0.0
Cloud Cover
34%
Sunrise
6:02 AM
Sunset
8:01 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Union County is currently partly cloudy at 27°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 3013 J/kg) — isolated convective development possible. Sunrise: 6:02AM · Sunset: 8:01PM.

Alerts

Extreme Heat Warning
Marshall, MS, Benton, MS, Tippah, MS, Alcorn, MS, Tishomingo, MS, Prentiss, MS, Lafayette, MS, Union, MS, Pontotoc, MS, Lee, MS, Itawamba, MS, Yalobusha, MS, Calhoun, MS, Chickasaw, MS, Monroe, MS, Benton, TN, Chester, TN, Henderson, TN, Decatur, TN, Hardeman, TN, McNairy, TN, Hardin, TN
Expires 8:00 PM
Heat Advisory
Marshall, MS, Benton, MS, Tippah, MS, Alcorn, MS, Tishomingo, MS, Prentiss, MS, Lafayette, MS, Union, MS, Pontotoc, MS, Lee, MS, Itawamba, MS, Yalobusha, MS, Calhoun, MS, Chickasaw, MS, Monroe, MS, Benton, TN, Chester, TN, Henderson, TN, Decatur, TN, Hardeman, TN, McNairy, TN, Hardin, TN
Expires 8:00 PM
54 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
27°
16%
1 AM
26°
15%
2 AM
26°
15%
3 AM
26°
15%
4 AM
26°
7%
5 AM
24°
7%
6 AM
24°
7%
7 AM
26°
11%
8 AM
27°
13%
9 AM
29°
18%
10 AM
31°
18%
11 AM
32°
13%
12 PM
33°
8%
1 PM
34°
8%
2 PM
34°
10%
3 PM
35°
10%
4 PM
34°
28%
5 PM
34°
28%
6 PM
32°
22%
7 PM
32°
22%
8 PM
31°
22%
9 PM
28°
22%
10 PM
28°
5%
11 PM
28°
3%
7-Day Forecast
Today
36° 24°
Partly Cloudy with a 22% chance of rain.
Tue
38° 24°
Partly Cloudy.
Wed
34° 21°
Partly Cloudy with a 52% chance of rain.
Thu
32° 20°
Mostly Clear with a 53% chance of rain.
Fri
31° 20°
Rain, 29% chance.
Sat
32° 21°
Rain, 82% chance.
Sun
28° 20°
Drizzle, 53% chance.
TimeTempConditionsPrecipWindHumidity
Now 27° Partly Cloudy 16% 2 mph SW 88%
1 AM 26° Partly Cloudy 15% 4 mph SW 87%
2 AM 26° Partly Cloudy 15% 4 mph SW 88%
3 AM 26° Mostly Cloudy 15% 4 mph WSW 88%
4 AM 26° Mostly Cloudy 7% 4 mph WSW 88%
5 AM 24° Mostly Cloudy 7% 4 mph WSW 88%
6 AM 24° Partly Cloudy 7% 4 mph WSW 87%
7 AM 26° Partly Cloudy 11% 4 mph WSW 84%
8 AM 27° Partly Cloudy 13% 4 mph W 78%
9 AM 29° Mostly Clear 18% 5 mph W 73%
10 AM 31° Mostly Clear 18% 6 mph W 68%
11 AM 32° Mostly Clear 13% 6 mph W 62%
12 PM 33° Mostly Clear 8% 7 mph W 57%
1 PM 34° Mostly Clear 8% 6 mph W 54%
2 PM 34° Partly Cloudy 10% 5 mph W 52%
3 PM 35° Partly Cloudy 10% 4 mph W 50%
4 PM 34° Partly Cloudy 28% 4 mph W 54%
5 PM 34° Partly Cloudy 28% 4 mph SW 61%
6 PM 32° Partly Cloudy 22% 5 mph S 70%
7 PM 32° Partly Cloudy 22% 4 mph S 76%
8 PM 31° Mostly Clear 22% 4 mph S 80%
9 PM 28° Clear 22% 3 mph S 83%
10 PM 28° Clear 5% 3 mph SSW 85%
11 PM 28° Clear 3% 3 mph SSW 85%
15-Day Forecast
Today
7/27
Partly Cloudy
22%
24°
36°
Tue
7/28
Partly Cloudy
12%
24°
38°
Wed
7/29
Partly Cloudy
52%
21°
34°
Thu
7/30
Mostly Clear
53%
20°
32°
Fri
7/31
Rain
29%
20°
31°
Sat
8/1
Rain
82%
21°
32°
Sun
8/2
Drizzle
53%
20°
28°
Mon
8/3
Rain
69%
20°
31°
Tue
8/4
Drizzle
44%
22°
33°
Wed
8/5
Clear
44%
22°
35°
Thu
8/6
Drizzle
60%
23°
34°
Fri
8/7
Drizzle
60%
22°
33°
Sat
8/8
Drizzle
60%
22°
33°
Sun
8/9
Drizzle
60%
22°
33°
Mon
8/10
Drizzle
60%
23°
34°
54
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
54 AQI 10.7 µg/m³
O3
Ground-level ozone
31 AQI 35 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 54 Moderate 31 54
Tue 57 Moderate 31 57
Wed 48 Good 31 48
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 Mon Jul 27, 04:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE2427 J/kg
MLCAPE2796 J/kg
MUCAPE3626 J/kg
SBCIN-200 J/kg
MLCIN0 J/kg
Lifted Index-5.0
Kinematics
0–6 km Shear17 kt
0–1 km Shear10 kt
Eff. Shear26 kt
0–1 km SRH15
0–3 km SRH17
Eff. SRH17
Storm Motion292° @ 17 kt
0–1 km EHI0.2
Composite Parameters
Sig. Tornado0.1
STP (eff)0.0
Supercell0.8
K-Index27.2
Thermo & Levels
PWAT1.69 in
0–3 km LR4.9 °C/km
700–500 LR5.8 °C/km
Total Totals42.5
LCL972 hPa
LFC740 hPa
EL152 hPa
Freezing Lvl16,919 ft