Severe Thunderstorm Warning — Copiah County, MS, Jefferson Davis County, MS, Lawrence County, MS, Lincoln County, MS, Marion County, MS 5:15 PM Severe Thunderstorm Warning — Covington County, MS, Jefferson Davis County, MS, Simpson County, MS, Smith County, MS 5:15 PM Severe Thunderstorm Watch 8:00 PM Severe Thunderstorm Watch 8:00 PM Extreme Heat Warning — Morehouse, LA, West Carroll, LA, East Carroll, LA, Richland, LA, Madison, LA, Franklin, LA, Catahoula, LA, Tensas, LA, Concordia, LA, Issaquena, MS, Sharkey, MS, Yazoo, MS, Madison, MS, Warren, MS, Hinds, MS, Rankin, MS, Claiborne, MS, Copiah, MS, Simpson, MS, Jefferson, MS, Adams, MS, Franklin, MS, Lincoln, MS, Lawrence, MS, Jefferson Davis, MS, Marion, MS 8:00 PM Heat Advisory — Morehouse, LA, West Carroll, LA, East Carroll, LA, Richland, LA, Madison, LA, Franklin, LA, Catahoula, LA, Tensas, LA, Concordia, LA, Issaquena, MS, Sharkey, MS, Yazoo, MS, Madison, MS, Warren, MS, Hinds, MS, Rankin, MS, Claiborne, MS, Copiah, MS, Simpson, MS, Jefferson, MS, Adams, MS, Franklin, MS, Lincoln, MS, Lawrence, MS, Jefferson Davis, MS, Marion, MS 8:00 PM

Jefferson Davis County, Mississippi, United States

Last updated: 5:03 PM CDT  ·  Refresh
31°C
Feels like 37°
Heavy Rain
▲ 36°  /  ▼ 22°
Wind
7 mph SE
Humidity
68%
Dew Point
23°
Pressure
29.59 inHg
Visibility
5 mi
UV Index
3.6
Cloud Cover
82%
Sunrise
6:28 AM
Sunset
7:35 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Jefferson Davis County is currently heavy rain at 31°C. Precipitation is likely — peak probability 77% around 6 PM. Atmospheric instability is elevated (CAPE up to 2192 J/kg) — isolated convective development possible. Sunrise: 6:28AM · Sunset: 7:35PM.

Alerts

Severe Thunderstorm Warning
Copiah County, MS, Jefferson Davis County, MS, Lawrence County, MS, Lincoln County, MS, Marion County, MS
Expires 5:15 PM
Severe Thunderstorm Warning
Covington County, MS, Jefferson Davis County, MS, Simpson County, MS, Smith County, MS
Expires 5:15 PM
Severe Thunderstorm Watch
Expires 8:00 PM
Severe Thunderstorm Watch
Expires 8:00 PM
Extreme Heat Warning
Morehouse, LA, West Carroll, LA, East Carroll, LA, Richland, LA, Madison, LA, Franklin, LA, Catahoula, LA, Tensas, LA, Concordia, LA, Issaquena, MS, Sharkey, MS, Yazoo, MS, Madison, MS, Warren, MS, Hinds, MS, Rankin, MS, Claiborne, MS, Copiah, MS, Simpson, MS, Jefferson, MS, Adams, MS, Franklin, MS, Lincoln, MS, Lawrence, MS, Jefferson Davis, MS, Marion, MS
Expires 8:00 PM
Heat Advisory
Morehouse, LA, West Carroll, LA, East Carroll, LA, Richland, LA, Madison, LA, Franklin, LA, Catahoula, LA, Tensas, LA, Concordia, LA, Issaquena, MS, Sharkey, MS, Yazoo, MS, Madison, MS, Warren, MS, Hinds, MS, Rankin, MS, Claiborne, MS, Copiah, MS, Simpson, MS, Jefferson, MS, Adams, MS, Franklin, MS, Lincoln, MS, Lawrence, MS, Jefferson Davis, MS, Marion, MS
Expires 8:00 PM
41 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
31°
74%
6 PM
30°
77%
7 PM
29°
65%
8 PM
28°
48%
9 PM
26°
44%
10 PM
24°
28%
11 PM
24°
37%
12 AM
24°
19%
1 AM
24°
8%
2 AM
23°
8%
3 AM
23°
8%
4 AM
23°
6%
5 AM
22°
6%
6 AM
22°
3%
7 AM
22°
3%
8 AM
24°
3%
9 AM
27°
3%
10 AM
28°
3%
11 AM
29°
3%
12 PM
32°
3%
1 PM
36°
3%
2 PM
36°
3%
3 PM
36°
3%
4 PM
38°
5%
7-Day Forecast
Today
36° 22°
Heavy Rain, 74% chance.
Sat
40° 22°
Partly Cloudy.
Sun
41° 23°
Partly Cloudy with a 37% chance of rain.
Mon
35° 22°
Partly Cloudy with a 56% chance of rain.
Tue
36° 22°
Mostly Clear.
Wed
37° 22°
Rain, 83% chance.
Thu
35° 23°
Drizzle, 56% chance.
TimeTempConditionsPrecipWindHumidity
Now 31° Heavy Rain 74% 7 mph SE 68%
6 PM 30° Rain 77% 5 mph WNW 80%
7 PM 29° Rain 65% 5 mph SW 83%
8 PM 28° Overcast 48% 4 mph SSW 84%
9 PM 26° Mostly Cloudy 44% 4 mph SSW 85%
10 PM 24° Mostly Cloudy 28% 4 mph SW 87%
11 PM 24° Mostly Cloudy 37% 3 mph WSW 88%
12 AM 24° Mostly Cloudy 19% 3 mph WSW 90%
1 AM 24° Mostly Cloudy 8% 3 mph W 92%
2 AM 23° Mostly Cloudy 8% 3 mph W 92%
3 AM 23° Mostly Cloudy 8% 2 mph WNW 92%
4 AM 23° Mostly Cloudy 6% 2 mph NW 92%
5 AM 22° Mostly Cloudy 6% 2 mph NW 92%
6 AM 22° Partly Cloudy 3% 2 mph NW 92%
7 AM 22° Mostly Cloudy 3% 2 mph WNW 92%
8 AM 24° Mostly Cloudy 3% 2 mph NW 84%
9 AM 27° Mostly Cloudy 3% 3 mph NNW 75%
10 AM 28° Partly Cloudy 3% 3 mph NNW 67%
11 AM 29° Partly Cloudy 3% 3 mph NNW 62%
12 PM 32° Partly Cloudy 3% 4 mph NNW 57%
1 PM 36° Partly Cloudy 3% 4 mph NNW 51%
2 PM 36° Partly Cloudy 3% 4 mph N 48%
3 PM 36° Partly Cloudy 3% 4 mph N 45%
4 PM 38° Mostly Clear 5% 5 mph NNE 42%
15-Day Forecast
Today
8/21
Heavy Rain
74%
22°
36°
Sat
8/22
Partly Cloudy
8%
22°
40°
Sun
8/23
Partly Cloudy
37%
23°
41°
Mon
8/24
Partly Cloudy
56%
22°
35°
Tue
8/25
Mostly Clear
16%
22°
36°
Wed
8/26
Rain
83%
22°
37°
Thu
8/27
Drizzle
56%
23°
35°
Fri
8/28
Drizzle
57%
22°
38°
Sat
8/29
Drizzle
54%
23°
37°
Sun
8/30
Rain
59%
22°
39°
Mon
8/31
Drizzle
60%
22°
39°
Tue
9/1
Drizzle
60%
23°
39°
Wed
9/2
Drizzle
60%
23°
39°
Thu
9/3
Drizzle
60%
23°
39°
Fri
9/4
Drizzle
60%
22°
38°
41
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
41 AQI 7.4 µg/m³
O3
Ground-level ozone
37 AQI 41 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Sat 41 Good 37 41
Sun 41 Good 41 41
Mon 53 Moderate 39 53
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 Fri Aug 21, 20:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE2685 J/kg
MLCAPE3403 J/kg
MUCAPE4052 J/kg
SBCIN-132 J/kg
MLCIN-67 J/kg
Lifted Index-7.3
Kinematics
0–6 km Shear17 kt
0–1 km Shear7 kt
Eff. Shear17 kt
0–1 km SRH33
0–3 km SRH93
Eff. SRH93
Storm Motion25° @ 17 kt
0–1 km EHI0.6
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index42.8
Thermo & Levels
PWAT2.39 in
0–3 km LR6.8 °C/km
700–500 LR6.4 °C/km
Total Totals55.7
LCL892 hPa
LFC803 hPa
EL150 hPa
Freezing Lvl15,190 ft