Severe Thunderstorm Watch 8:00 PM Severe Thunderstorm Watch 8:00 PM Excessive Heat Warning — 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, Bolivar, MS, Sunflower, MS, Leflore, MS, Washington, MS, Humphreys, MS, Holmes, MS, Grenada, MS, Carroll, MS, Montgomery, MS, Webster, MS, Clay, MS, Lowndes, MS, Choctaw, MS, Oktibbeha, MS, Attala, MS, Winston, MS, Noxubee, MS, Leake, MS, Neshoba, MS, Kemper, MS, Scott, MS, Newton, MS, Lauderdale, MS, Smith, MS, Jasper, MS, Clarke, MS, Covington, MS, Jones, MS, Lamar, MS, Forrest, MS 8:00 PM

Jefferson Davis County, Mississippi, United States

Last updated: 7:17 PM CDT  ·  Refresh
24°C
Feels like 28°
Overcast
▲ 36°  /  ▼ 21°
Wind
6 mph SW
Humidity
94%
Dew Point
23°
Pressure
29.62 inHg
Visibility
10 mi
UV Index
0.3
Cloud Cover
96%
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 overcast at 24°C. Precipitation is likely — peak probability 63% around 7 PM. Atmospheric instability is elevated (CAPE up to 2422 J/kg) — isolated convective development possible. Sunrise: 6:28AM · Sunset: 7:35PM.

Alerts

Severe Thunderstorm Watch
Expires 8:00 PM
Severe Thunderstorm Watch
Expires 8:00 PM
Excessive Heat Warning
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, Bolivar, MS, Sunflower, MS, Leflore, MS, Washington, MS, Humphreys, MS, Holmes, MS, Grenada, MS, Carroll, MS, Montgomery, MS, Webster, MS, Clay, MS, Lowndes, MS, Choctaw, MS, Oktibbeha, MS, Attala, MS, Winston, MS, Noxubee, MS, Leake, MS, Neshoba, MS, Kemper, MS, Scott, MS, Newton, MS, Lauderdale, MS, Smith, MS, Jasper, MS, Clarke, MS, Covington, MS, Jones, MS, Lamar, MS, Forrest, MS
Expires 8:00 PM
41 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
24°
63%
8 PM
27°
38%
9 PM
24°
35%
10 PM
24°
28%
11 PM
23°
22%
12 AM
23°
22%
1 AM
23°
4%
2 AM
23°
4%
3 AM
23°
4%
4 AM
23°
3%
5 AM
21°
3%
6 AM
21°
3%
7 AM
22°
3%
8 AM
24°
3%
9 AM
27°
3%
10 AM
28°
3%
11 AM
30°
3%
12 PM
32°
3%
1 PM
35°
3%
2 PM
36°
3%
3 PM
37°
3%
4 PM
37°
5%
5 PM
34°
5%
6 PM
34°
6%
7-Day Forecast
Tonight
36° 21°
Overcast with a 63% chance of rain.
Sat
38° 21°
Partly Cloudy.
Sun
38° 23°
Partly Cloudy with a 25% chance of rain.
Mon
33° 23°
Partly Cloudy with a 55% chance of rain.
Tue
37° 23°
Mostly Clear with a 26% chance of rain.
Wed
34° 22°
Rain, 76% chance.
Thu
35° 22°
Rain, 67% chance.
TimeTempConditionsPrecipWindHumidity
Now 24° Overcast 63% 6 mph SW 94%
8 PM 27° Overcast 38% 5 mph SSW 94%
9 PM 24° Overcast 35% 5 mph SW 94%
10 PM 24° Overcast 28% 4 mph WSW 94%
11 PM 23° Overcast 22% 4 mph W 94%
12 AM 23° Overcast 22% 4 mph W 94%
1 AM 23° Overcast 4% 3 mph W 94%
2 AM 23° Overcast 4% 3 mph W 94%
3 AM 23° Overcast 4% 4 mph W 94%
4 AM 23° Overcast 3% 3 mph WNW 94%
5 AM 21° Overcast 3% 2 mph WNW 94%
6 AM 21° Overcast 3% 2 mph NW 93%
7 AM 22° Overcast 3% 2 mph NNW 92%
8 AM 24° Mostly Cloudy 3% 4 mph NNW 86%
9 AM 27° Partly Cloudy 3% 4 mph NNW 80%
10 AM 28° Mostly Cloudy 3% 4 mph NNW 73%
11 AM 30° Mostly Cloudy 3% 4 mph NNW 65%
12 PM 32° Partly Cloudy 3% 4 mph NNW 57%
1 PM 35° Partly Cloudy 3% 4 mph N 50%
2 PM 36° Partly Cloudy 3% 4 mph N 45%
3 PM 37° Partly Cloudy 3% 4 mph N 41%
4 PM 37° Mostly Clear 5% 4 mph N 40%
5 PM 34° Mostly Clear 5% 3 mph N 43%
6 PM 34° Clear 6% 3 mph NE 47%
15-Day Forecast
Today
8/21
Overcast
63%
21°
36°
Sat
8/22
Partly Cloudy
6%
21°
38°
Sun
8/23
Partly Cloudy
25%
23°
38°
Mon
8/24
Partly Cloudy
55%
23°
33°
Tue
8/25
Mostly Clear
26%
23°
37°
Wed
8/26
Rain
76%
22°
34°
Thu
8/27
Rain
67%
22°
35°
Fri
8/28
Drizzle
57%
23°
37°
Sat
8/29
Thunderstorm
54%
22°
38°
Sun
8/30
Drizzle
47%
22°
38°
Mon
8/31
Drizzle
60%
22°
38°
Tue
9/1
Drizzle
60%
23°
38°
Wed
9/2
Drizzle
60%
23°
38°
Thu
9/3
Drizzle
60%
23°
38°
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
Today 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, 23:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE956 J/kg
MLCAPE2070 J/kg
MUCAPE2811 J/kg
SBCIN-276 J/kg
MLCIN-155 J/kg
Lifted Index-3.9
Kinematics
0–6 km Shear23 kt
0–1 km Shear9 kt
Eff. Shear25 kt
0–1 km SRH62
0–3 km SRH131
Eff. SRH147
Storm Motion29° @ 19 kt
0–1 km EHI0.4
Composite Parameters
Sig. Tornado0.0
STP (eff)0.3
Supercell5.3
K-Index36.0
Thermo & Levels
PWAT2.18 in
0–3 km LR4.5 °C/km
700–500 LR6.2 °C/km
Total Totals50.4
LCL987 hPa
LFC713 hPa
EL173 hPa
Freezing Lvl14,948 ft