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: 1:22 AM CDT  ·  Refresh
26°C
Feels like 30°
Mostly Clear
▲ 38°  /  ▼ 24°
Wind
3 mph SW
Humidity
85%
Dew Point
23°
Pressure
29.69 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
21%
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 26°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1757 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°
4%
2 AM
25°
4%
3 AM
25°
4%
4 AM
24°
4%
5 AM
24°
4%
6 AM
23°
3%
7 AM
24°
3%
8 AM
27°
7%
9 AM
29°
7%
10 AM
32°
18%
11 AM
34°
18%
12 PM
36°
18%
1 PM
38°
19%
2 PM
38°
19%
3 PM
38°
19%
4 PM
38°
20%
5 PM
37°
20%
6 PM
36°
14%
7 PM
34°
15%
8 PM
34°
15%
9 PM
30°
15%
10 PM
29°
5%
11 PM
29°
5%
12 AM
29°
5%
7-Day Forecast
Today
38° 24°
Mostly Clear with a 20% chance of rain.
Tue
42° 24°
Mostly Clear with a 64% chance of rain.
Wed
42° 24°
Mostly Clear with a 72% chance of rain.
Thu
39° 23°
Rain, 64% chance.
Fri
39° 22°
Rain, 64% chance.
Sat
39° 23°
Thunderstorm, 52% chance.
Sun
39° 22°
Rain, 54% chance.
TimeTempConditionsPrecipWindHumidity
Now 26° Mostly Clear 4% 3 mph SW 85%
2 AM 25° Mostly Clear 4% 4 mph SW 82%
3 AM 25° Mostly Clear 4% 4 mph SW 81%
4 AM 24° Mostly Clear 4% 4 mph SW 81%
5 AM 24° Mostly Clear 4% 4 mph SW 84%
6 AM 23° Clear 3% 4 mph WSW 87%
7 AM 24° Mostly Clear 3% 5 mph W 85%
8 AM 27° Mostly Clear 7% 7 mph W 76%
9 AM 29° Mostly Clear 7% 7 mph W 68%
10 AM 32° Mostly Clear 18% 7 mph WNW 59%
11 AM 34° Mostly Clear 18% 6 mph WNW 51%
12 PM 36° Mostly Clear 18% 6 mph WNW 44%
1 PM 38° Mostly Clear 19% 6 mph W 39%
2 PM 38° Partly Cloudy 19% 6 mph W 38%
3 PM 38° Partly Cloudy 19% 6 mph W 38%
4 PM 38° Partly Cloudy 20% 6 mph WSW 40%
5 PM 37° Partly Cloudy 20% 7 mph WSW 46%
6 PM 36° Partly Cloudy 14% 8 mph SW 52%
7 PM 34° Partly Cloudy 15% 7 mph SW 57%
8 PM 34° Partly Cloudy 15% 6 mph SW 59%
9 PM 30° Partly Cloudy 15% 6 mph SW 61%
10 PM 29° Partly Cloudy 5% 6 mph SW 63%
11 PM 29° Partly Cloudy 5% 6 mph SW 64%
12 AM 29° Partly Cloudy 5% 6 mph SW 65%
15-Day Forecast
Today
8/17
Mostly Clear
20%
24°
38°
Tue
8/18
Mostly Clear
64%
24°
42°
Wed
8/19
Mostly Clear
72%
24°
42°
Thu
8/20
Rain
64%
23°
39°
Fri
8/21
Rain
64%
22°
39°
Sat
8/22
Thunderstorm
52%
23°
39°
Sun
8/23
Rain
54%
22°
39°
Mon
8/24
Drizzle
43%
23°
39°
Tue
8/25
Rain
68%
23°
38°
Wed
8/26
Drizzle
60%
23°
39°
Thu
8/27
Drizzle
60%
23°
40°
Fri
8/28
Rain
90%
23°
40°
Sat
8/29
Drizzle
60%
22°
39°
Sun
8/30
Drizzle
60%
22°
38°
Mon
8/31
Drizzle
60%
22°
38°
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, 05:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE658 J/kg
MLCAPE642 J/kg
MUCAPE1280 J/kg
SBCIN-272 J/kg
MLCIN-184 J/kg
Lifted Index-1.2
Kinematics
0–6 km Shear6 kt
0–1 km Shear10 kt
Eff. Shear18 kt
0–1 km SRH32
0–3 km SRH84
Eff. SRH128
Storm Motion126° @ 12 kt
0–1 km EHI0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index29.2
Thermo & Levels
PWAT1.96 in
0–3 km LR4.9 °C/km
700–500 LR5.3 °C/km
Total Totals45.2
LCL965 hPa
LFC740 hPa
EL203 hPa
Freezing Lvl16,713 ft