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 8:00 PM

Jefferson Davis County, Mississippi, United States

Last updated: 9:40 AM CDT  ·  Refresh
29°C
Feels like 32°
Partly Cloudy
▲ 38°  /  ▼ 24°
Wind
6 mph WNW
Humidity
66%
Dew Point
23°
Pressure
29.69 inHg
Visibility
10 mi
UV Index
7.1
Cloud Cover
38%
Sunrise
6:26 AM
Sunset
7:39 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Jefferson Davis County is currently partly cloudy at 29°C. Precipitation is likely — peak probability 64% around 7 PM. Atmospheric instability is elevated (CAPE up to 1854 J/kg) — isolated convective development possible. Sunrise: 6:26AM · Sunset: 7:39PM.

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 8:00 PM
52 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
29°
3%
10 AM
32°
21%
11 AM
34°
21%
12 PM
36°
21%
1 PM
38°
29%
2 PM
38°
48%
3 PM
38°
47%
4 PM
36°
55%
5 PM
34°
56%
6 PM
32°
63%
7 PM
31°
63%
8 PM
29°
57%
9 PM
25°
46%
10 PM
24°
30%
11 PM
24°
23%
12 AM
24°
23%
1 AM
26°
9%
2 AM
25°
9%
3 AM
24°
9%
4 AM
24°
9%
5 AM
24°
9%
6 AM
24°
5%
7 AM
24°
24%
8 AM
26°
24%
7-Day Forecast
Today
38° 24°
Partly Cloudy with a 63% chance of rain.
Wed
40° 24°
Mostly Clear with a 49% chance of rain.
Thu
40° 23°
Clear with a 42% chance of rain.
Fri
39° 23°
Clear with a 60% chance of rain.
Sat
38° 21°
Clear.
Sun
41° 22°
Drizzle, 43% chance.
Mon
39° 21°
Clear with a 31% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 29° Partly Cloudy 3% 6 mph WNW 66%
10 AM 32° Partly Cloudy 21% 7 mph WNW 57%
11 AM 34° Partly Cloudy 21% 6 mph WNW 49%
12 PM 36° Partly Cloudy 21% 6 mph WNW 42%
1 PM 38° Partly Cloudy 29% 5 mph W 39%
2 PM 38° Partly Cloudy 48% 5 mph W 38%
3 PM 38° Mostly Clear 47% 6 mph WSW 39%
4 PM 36° Partly Cloudy 55% 5 mph SW 46%
5 PM 34° Partly Cloudy 56% 5 mph SSW 57%
6 PM 32° Partly Cloudy 63% 5 mph S 69%
7 PM 31° Partly Cloudy 63% 5 mph S 79%
8 PM 29° Mostly Cloudy 57% 5 mph SSE 84%
9 PM 25° Mostly Cloudy 46% 6 mph SSE 87%
10 PM 24° Mostly Cloudy 30% 5 mph SSE 88%
11 PM 24° Mostly Cloudy 23% 5 mph SSE 88%
12 AM 24° Mostly Cloudy 23% 4 mph SSE 89%
1 AM 26° Partly Cloudy 9% 5 mph SSW 81%
2 AM 25° Partly Cloudy 9% 5 mph SSW 83%
3 AM 24° Partly Cloudy 9% 5 mph SSW 85%
4 AM 24° Partly Cloudy 9% 5 mph SSW 87%
5 AM 24° Partly Cloudy 9% 5 mph SW 89%
6 AM 24° Partly Cloudy 5% 5 mph SW 90%
7 AM 24° Partly Cloudy 24% 5 mph WSW 86%
8 AM 26° Partly Cloudy 24% 5 mph WSW 78%
15-Day Forecast
Today
8/18
Partly Cloudy
63%
24°
38°
Wed
8/19
Mostly Clear
49%
24°
40°
Thu
8/20
Clear
42%
23°
40°
Fri
8/21
Clear
60%
23°
39°
Sat
8/22
Clear
16%
21°
38°
Sun
8/23
Drizzle
43%
22°
41°
Mon
8/24
Clear
31%
21°
39°
Tue
8/25
Drizzle
43%
23°
39°
Wed
8/26
Drizzle
44%
23°
39°
Thu
8/27
Clear
36%
24°
36°
Fri
8/28
Drizzle
60%
20°
38°
Sat
8/29
Drizzle
60%
21°
37°
Sun
8/30
Drizzle
60%
21°
36°
Mon
8/31
Drizzle
60%
21°
36°
Tue
9/1
Drizzle
60%
21°
37°
52
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
52 AQI 9.9 µg/m³
O3
Ground-level ozone
37 AQI 40 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Wed 52 Moderate 37 52
Thu 48 Good 31 48
Fri 51 Moderate 30 51
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 Tue Aug 18, 11:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE1621 J/kg
MLCAPE406 J/kg
MUCAPE1621 J/kg
SBCIN-163 J/kg
MLCIN-230 J/kg
Lifted Index-4.2
Kinematics
0–6 km Shear3 kt
0–1 km Shear6 kt
Eff. Shear1 kt
0–1 km SRH26
0–3 km SRH-3
Eff. SRH-3
Storm Motion348° @ 17 kt
0–1 km EHI0.3
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index36.1
Thermo & Levels
PWAT1.86 in
0–3 km LR6.3 °C/km
700–500 LR5.6 °C/km
Total Totals45.8
LCL915 hPa
LFC780 hPa
EL170 hPa
Freezing Lvl15,089 ft