Extreme Heat Warning — Chicot, AR, West Carroll, LA, East Carroll, LA, Madison, 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: 3:00 AM CDT  ·  Refresh
26°C
Feels like 29°
Mostly Clear
▲ 38°  /  ▼ 24°
Wind
4 mph SW
Humidity
83%
Dew Point
23°
Pressure
29.68 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
11%
Sunrise
6:25 AM
Sunset
7:40 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Jefferson Davis County is currently mostly clear at 25°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1779 J/kg) — isolated convective development possible. Sunrise: 6:25AM · Sunset: 7:40PM.

Alerts

Extreme Heat Warning
Chicot, AR, West Carroll, LA, East Carroll, LA, Madison, 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
55 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
26°
3%
4 AM
24°
3%
5 AM
24°
3%
6 AM
23°
3%
7 AM
24°
3%
8 AM
26°
3%
9 AM
29°
7%
10 AM
31°
15%
11 AM
33°
16%
12 PM
35°
16%
1 PM
38°
16%
2 PM
38°
16%
3 PM
38°
17%
4 PM
38°
17%
5 PM
38°
19%
6 PM
36°
14%
7 PM
34°
14%
8 PM
33°
14%
9 PM
31°
15%
10 PM
29°
5%
11 PM
29°
5%
12 AM
29°
9%
1 AM
29°
9%
2 AM
27°
10%
7-Day Forecast
Today
38° 24°
Partly Cloudy.
Tue
42° 24°
Mostly Clear with a 64% chance of rain.
Wed
43° 24°
Clear with a 63% chance of rain.
Thu
38° 23°
Clear with a 64% chance of rain.
Fri
40° 22°
Rain, 64% chance.
Sat
39° 23°
Drizzle, 52% chance.
Sun
41° 22°
Clear with a 63% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 26° Mostly Clear 3% 4 mph SW 83%
4 AM 24° Mostly Clear 3% 4 mph SW 79%
5 AM 24° Mostly Clear 3% 4 mph SW 82%
6 AM 23° Clear 3% 4 mph SW 85%
7 AM 24° Clear 3% 4 mph WSW 88%
8 AM 26° Mostly Clear 3% 6 mph W 80%
9 AM 29° Mostly Clear 7% 7 mph W 71%
10 AM 31° Partly Cloudy 15% 7 mph WNW 62%
11 AM 33° Mostly Clear 16% 7 mph WNW 54%
12 PM 35° Mostly Clear 16% 6 mph WNW 46%
1 PM 38° Mostly Clear 16% 6 mph W 39%
2 PM 38° Mostly Clear 16% 6 mph W 38%
3 PM 38° Partly Cloudy 17% 6 mph W 38%
4 PM 38° Partly Cloudy 17% 6 mph WSW 38%
5 PM 38° Partly Cloudy 19% 7 mph WSW 44%
6 PM 36° Partly Cloudy 14% 8 mph SW 50%
7 PM 34° Partly Cloudy 14% 8 mph SW 56%
8 PM 33° Partly Cloudy 14% 7 mph SW 58%
9 PM 31° Partly Cloudy 15% 6 mph SW 61%
10 PM 29° Partly Cloudy 5% 6 mph SW 62%
11 PM 29° Partly Cloudy 5% 6 mph SW 63%
12 AM 29° Partly Cloudy 9% 7 mph SW 65%
1 AM 29° Partly Cloudy 9% 7 mph SW 66%
2 AM 27° Partly Cloudy 10% 6 mph SW 68%
15-Day Forecast
Today
8/17
Partly Cloudy
17%
24°
38°
Tue
8/18
Mostly Clear
64%
24°
42°
Wed
8/19
Clear
63%
24°
43°
Thu
8/20
Clear
64%
23°
38°
Fri
8/21
Rain
64%
22°
40°
Sat
8/22
Drizzle
52%
23°
39°
Sun
8/23
Clear
63%
22°
41°
Mon
8/24
Thunderstorm
43%
23°
40°
Tue
8/25
Rain
68%
23°
38°
Wed
8/26
Drizzle
51%
23°
37°
Thu
8/27
Drizzle
60%
23°
39°
Fri
8/28
Drizzle
60%
23°
38°
Sat
8/29
Drizzle
60%
22°
38°
Sun
8/30
Drizzle
60%
22°
38°
Mon
8/31
Drizzle
60%
22°
37°
55
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
55 AQI 11.1 µg/m³
O3
Ground-level ozone
28 AQI 31 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 55 Moderate 28 55
Tue 54 Moderate 34 54
Wed 52 Moderate 32 52
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 Mon Aug 17, 06:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE420 J/kg
MLCAPE616 J/kg
MUCAPE1029 J/kg
SBCIN-330 J/kg
MLCIN-211 J/kg
Lifted Index-0.9
Kinematics
0–6 km Shear4 kt
0–1 km Shear9 kt
Eff. Shear21 kt
0–1 km SRH22
0–3 km SRH69
Eff. SRH126
Storm Motion149° @ 13 kt
0–1 km EHI0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell1.4
K-Index28.0
Thermo & Levels
PWAT1.89 in
0–3 km LR4.6 °C/km
700–500 LR5.4 °C/km
Total Totals45.4
LCL965 hPa
LFC690 hPa
EL236 hPa
Freezing Lvl16,637 ft