Extreme Heat Warning — 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: 6:20 AM CDT  ·  Refresh
23°C
Feels like 26°
Clear
▲ 37°  /  ▼ 23°
Wind
3 mph SSW
Humidity
78%
Dew Point
19°
Pressure
29,68 inHg
Visibility
9 mi
UV Index
0,0
Cloud Cover
0%
Sunrise
6:16 AM
Sunset
7:43 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Union County is currently clear at 23°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 594 J/kg) — isolated convective development possible. Sunrise: 6:16AM · Sunset: 7:43PM.

Alerts

Extreme Heat Warning
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
23°
11%
7 AM
23°
21%
8 AM
25°
21%
9 AM
28°
14%
10 AM
31°
14%
11 AM
32°
14%
12 PM
33°
7%
1 PM
36°
3%
2 PM
36°
3%
3 PM
37°
3%
4 PM
37°
3%
5 PM
36°
3%
6 PM
34°
3%
7 PM
33°
3%
8 PM
32°
3%
9 PM
29°
3%
10 PM
28°
3%
11 PM
27°
3%
12 AM
27°
3%
1 AM
26°
3%
2 AM
26°
3%
3 AM
26°
3%
4 AM
26°
3%
5 AM
24°
3%
7-Day Forecast
Today
37° 23°
Clear.
Sun
40° 24°
Mostly Clear.
Mon
41° 25°
Mostly Clear with a 44% chance of rain.
Tue
37° 23°
Clear with a 28% chance of rain.
Wed
41° 23°
Rain, 48% chance.
Thu
39° 23°
Rain, 60% chance.
Fri
37° 22°
Rain, 63% chance.
TimeTempConditionsPrecipWindHumidity
Now 23° Clear 11% 3 mph SSW 78%
7 AM 23° Clear 21% 4 mph SW 72%
8 AM 25° Clear 21% 5 mph SW 64%
9 AM 28° Clear 14% 6 mph WSW 57%
10 AM 31° Clear 14% 7 mph W 50%
11 AM 32° Clear 14% 7 mph W 44%
12 PM 33° Clear 7% 7 mph W 39%
1 PM 36° Clear 3% 6 mph W 35%
2 PM 36° Clear 3% 6 mph W 34%
3 PM 37° Clear 3% 5 mph W 34%
4 PM 37° Clear 3% 5 mph WSW 35%
5 PM 36° Clear 3% 5 mph WSW 38%
6 PM 34° Clear 3% 4 mph WSW 42%
7 PM 33° Mostly Clear 3% 3 mph SW 46%
8 PM 32° Mostly Clear 3% 3 mph S 48%
9 PM 29° Mostly Clear 3% 4 mph S 50%
10 PM 28° Partly Cloudy 3% 4 mph S 52%
11 PM 27° Partly Cloudy 3% 4 mph S 55%
12 AM 27° Partly Cloudy 3% 4 mph S 57%
1 AM 26° Partly Cloudy 3% 4 mph S 59%
2 AM 26° Partly Cloudy 3% 4 mph S 60%
3 AM 26° Partly Cloudy 3% 5 mph SSW 61%
4 AM 26° Partly Cloudy 3% 5 mph SSW 62%
5 AM 24° Partly Cloudy 3% 5 mph SSW 63%
15-Day Forecast
Today
8/15
Clear
14%
23°
37°
Sun
8/16
Mostly Clear
3%
24°
40°
Mon
8/17
Mostly Clear
44%
25°
41°
Tue
8/18
Clear
28%
23°
37°
Wed
8/19
Rain
48%
23°
41°
Thu
8/20
Rain
60%
23°
39°
Fri
8/21
Rain
63%
22°
37°
Sat
8/22
Rain
66%
21°
37°
Sun
8/23
Rain
58%
19°
36°
Mon
8/24
Clear
15%
20°
35°
Tue
8/25
Drizzle
60%
22°
38°
Wed
8/26
Drizzle
60%
23°
37°
Thu
8/27
Drizzle
60%
23°
37°
Fri
8/28
Drizzle
60%
22°
36°
Sat
8/29
Drizzle
60%
22°
36°
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
Today 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 sam. août 15, 10:00'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
MLCAPE19 J/kg
MUCAPE150 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index2.5
Kinematics
0–6 km Shear10 kt
0–1 km Shear11 kt
Eff. Shear—
0–1 km SRH58
0–3 km SRH40
Eff. SRH—
Storm Motion338° @ 14 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index15.1
Thermo & Levels
PWAT1.22 in
0–3 km LR4.0 °C/km
700–500 LR6.0 °C/km
Total Totals40.0
LCL947 hPa
LFC1005 hPa
EL1005 hPa
Freezing Lvl16,283 ft