Heat Advisory — Ashley, AR, Chicot, AR, Morehouse, LA, West Carroll, LA, East Carroll, LA, Richland, LA, Madison, LA, Franklin, LA, Catahoula, LA, Tensas, LA, Concordia, LA, Bolivar, MS, Sunflower, MS, Leflore, MS, Grenada, MS, Carroll, MS, Montgomery, MS, Webster, MS, Clay, MS, Lowndes, MS, Choctaw, MS, Oktibbeha, MS, Washington, MS, Humphreys, MS, Holmes, MS, Attala, MS, Winston, MS, Noxubee, MS, Issaquena, MS, Sharkey, MS, Yazoo, MS, Madison, MS, Leake, MS, Neshoba, MS, Kemper, MS, Warren, MS, Hinds, MS, Rankin, MS, Scott, MS, Newton, MS, Lauderdale, MS, Claiborne, MS, Copiah, MS, Simpson, MS, Smith, MS, Jasper, MS, Clarke, MS, Jefferson, MS, Adams, MS, Franklin, MS, Lincoln, MS, Lawrence, MS, Jefferson Davis, MS, Covington, MS, Jones, MS, Marion, MS, Lamar, MS, Forrest, MS 7:00 PM

Jefferson Davis County, Mississippi, United States

Last updated: 7:00 PM CDT  ·  Refresh
34°C
Feels like 38°
Mostly Clear
▲ 37°  /  ▼ 23°
Wind
4 mph SW
Humidity
45%
Dew Point
20°
Pressure
29.55 inHg
Visibility
10 mi
UV Index
2.4
Cloud Cover
21%
Sunrise
6:22 AM
Sunset
7:45 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Jefferson Davis County is currently mostly clear at 34°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2516 J/kg) — isolated convective development possible. Sunrise: 6:22AM · Sunset: 7:45PM.

Alerts

Heat Advisory
Ashley, AR, Chicot, AR, Morehouse, LA, West Carroll, LA, East Carroll, LA, Richland, LA, Madison, LA, Franklin, LA, Catahoula, LA, Tensas, LA, Concordia, LA, Bolivar, MS, Sunflower, MS, Leflore, MS, Grenada, MS, Carroll, MS, Montgomery, MS, Webster, MS, Clay, MS, Lowndes, MS, Choctaw, MS, Oktibbeha, MS, Washington, MS, Humphreys, MS, Holmes, MS, Attala, MS, Winston, MS, Noxubee, MS, Issaquena, MS, Sharkey, MS, Yazoo, MS, Madison, MS, Leake, MS, Neshoba, MS, Kemper, MS, Warren, MS, Hinds, MS, Rankin, MS, Scott, MS, Newton, MS, Lauderdale, MS, Claiborne, MS, Copiah, MS, Simpson, MS, Smith, MS, Jasper, MS, Clarke, MS, Jefferson, MS, Adams, MS, Franklin, MS, Lincoln, MS, Lawrence, MS, Jefferson Davis, MS, Covington, MS, Jones, MS, Marion, MS, Lamar, MS, Forrest, MS
Expires 7:00 PM
31 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
34°
12%
8 PM
33°
16%
9 PM
30°
11%
10 PM
28°
8%
11 PM
28°
8%
12 AM
27°
4%
1 AM
27°
3%
2 AM
26°
3%
3 AM
26°
3%
4 AM
25°
3%
5 AM
24°
3%
6 AM
24°
3%
7 AM
24°
3%
8 AM
26°
3%
9 AM
28°
8%
10 AM
30°
8%
11 AM
31°
10%
12 PM
32°
10%
1 PM
35°
12%
2 PM
37°
15%
3 PM
37°
15%
4 PM
37°
13%
5 PM
35°
14%
6 PM
34°
8%
7-Day Forecast
Tonight
37° 23°
Mostly Clear.
Thu
38° 24°
Mostly Clear.
Fri
39° 22°
Mostly Clear.
Sat
41° 23°
Clear.
Sun
41° 25°
Mostly Clear with a 34% chance of rain.
Mon
39° 24°
Mostly Clear with a 33% chance of rain.
Tue
41° 22°
Mostly Cloudy with a 34% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 34° Mostly Clear 12% 4 mph SW 45%
8 PM 33° Mostly Clear 16% 4 mph SW 51%
9 PM 30° Mostly Clear 11% 4 mph SW 56%
10 PM 28° Mostly Clear 8% 6 mph SSW 62%
11 PM 28° Partly Cloudy 8% 5 mph SSW 67%
12 AM 27° Partly Cloudy 4% 5 mph SSW 72%
1 AM 27° Clear 3% 6 mph SSW 77%
2 AM 26° Clear 3% 5 mph SW 81%
3 AM 26° Clear 3% 5 mph SW 84%
4 AM 25° Clear 3% 5 mph SW 87%
5 AM 24° Clear 3% 5 mph SW 89%
6 AM 24° Clear 3% 4 mph WSW 91%
7 AM 24° Mostly Clear 3% 4 mph WSW 92%
8 AM 26° Mostly Clear 3% 6 mph WSW 84%
9 AM 28° Mostly Clear 8% 7 mph WSW 75%
10 AM 30° Mostly Clear 8% 8 mph WSW 67%
11 AM 31° Mostly Clear 10% 7 mph WSW 61%
12 PM 32° Mostly Clear 10% 7 mph WSW 54%
1 PM 35° Mostly Clear 12% 7 mph WSW 48%
2 PM 37° Mostly Clear 15% 6 mph WSW 47%
3 PM 37° Mostly Clear 15% 6 mph SW 46%
4 PM 37° Mostly Clear 13% 6 mph SW 46%
5 PM 35° Mostly Clear 14% 6 mph SW 48%
6 PM 34° Mostly Clear 8% 6 mph SSW 50%
15-Day Forecast
Today
8/12
Mostly Clear
12%
23°
37°
Thu
8/13
Mostly Clear
12%
24°
38°
Fri
8/14
Mostly Clear
6%
22°
39°
Sat
8/15
Clear
14%
23°
41°
Sun
8/16
Mostly Clear
34%
25°
41°
Mon
8/17
Mostly Clear
33%
24°
39°
Tue
8/18
Mostly Cloudy
34%
22°
41°
Wed
8/19
Partly Cloudy
24%
24°
42°
Thu
8/20
Drizzle
46%
22°
42°
Fri
8/21
Drizzle
52%
22°
42°
Sat
8/22
Drizzle
60%
23°
42°
Sun
8/23
Drizzle
60%
23°
40°
Mon
8/24
Drizzle
60%
23°
39°
Tue
8/25
Drizzle
60%
23°
39°
Wed
8/26
Drizzle
60%
22°
39°
31
Good
U.S. Air Quality Index · Dominant: O3
50 100 150 200

Air quality is satisfactory and poses little or no health risk.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
27 AQI 4.9 µg/m³
O3
Ground-level ozone
Dominant
31 AQI 34 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 31 Good 31 27
Fri 22 Good 20 22
Sat 54 Moderate 29 54
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 Wed Aug 12, 22:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE1543 J/kg
MLCAPE678 J/kg
MUCAPE1543 J/kg
SBCIN-77 J/kg
MLCIN0 J/kg
Lifted Index-2.9
Kinematics
0–6 km Shear8 kt
0–1 km Shear4 kt
Eff. Shear4 kt
0–1 km SRH17
0–3 km SRH24
Eff. SRH24
Storm Motion323° @ 16 kt
0–1 km EHI0.2
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index24.9
Thermo & Levels
PWAT1.43 in
0–3 km LR8.0 °C/km
700–500 LR5.4 °C/km
Total Totals42.7
LCL818 hPa
LFC780 hPa
EL175 hPa
Freezing Lvl16,726 ft