Excessive Heat Warning — Adams, MS, Grenada, MS, Carroll, MS, Holmes, MS, Issaquena, MS, Sharkey, MS, Yazoo, MS, Madison, MS, Warren, MS, Hinds, MS, Rankin, MS, Claiborne, MS, Copiah, MS, Simpson, MS, Jefferson, MS, Bolivar, MS, Sunflower, MS, Leflore, MS, Washington, MS, Humphreys, 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, Newton, MS, Lauderdale, MS, Scott, MS, Smith, MS, Jasper, MS, Clarke, MS, Franklin, MS, Lincoln, MS, Lawrence, MS, Jefferson Davis, MS, Covington, MS, Jones, MS, Marion, MS, Lamar, MS, Forrest, MS 9:00 PM

Jefferson Davis County, Mississippi, United States

Last updated: 9:42 PM CDT  ·  Refresh
30°C
Feels like 35°
Mostly Clear
▲ 36°  /  ▼ 23°
Wind
3 mph NE
Humidity
67%
Dew Point
22°
Pressure
29.50 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
12%
Sunrise
6:08 AM
Sunset
8:03 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Jefferson Davis County is currently mostly clear at 30°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1598 J/kg) — isolated convective development possible. Sunrise: 6:08AM · Sunset: 8:03PM.

Alerts

Excessive Heat Warning
Adams, MS, Grenada, MS, Carroll, MS, Holmes, MS, Issaquena, MS, Sharkey, MS, Yazoo, MS, Madison, MS, Warren, MS, Hinds, MS, Rankin, MS, Claiborne, MS, Copiah, MS, Simpson, MS, Jefferson, MS, Bolivar, MS, Sunflower, MS, Leflore, MS, Washington, MS, Humphreys, 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, Newton, MS, Lauderdale, MS, Scott, MS, Smith, MS, Jasper, MS, Clarke, MS, Franklin, MS, Lincoln, MS, Lawrence, MS, Jefferson Davis, MS, Covington, MS, Jones, MS, Marion, MS, Lamar, MS, Forrest, MS
Expires 9:00 PM
64 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
30°
16%
10 PM
28°
23%
11 PM
28°
23%
12 AM
27°
16%
1 AM
27°
11%
2 AM
26°
16%
3 AM
26°
17%
4 AM
25°
17%
5 AM
24°
18%
6 AM
24°
13%
7 AM
26°
13%
8 AM
27°
13%
9 AM
31°
8%
10 AM
32°
7%
11 AM
33°
15%
12 PM
34°
7%
1 PM
35°
15%
2 PM
36°
15%
3 PM
36°
14%
4 PM
36°
14%
5 PM
36°
14%
6 PM
36°
14%
7 PM
35°
14%
8 PM
34°
14%
7-Day Forecast
Tonight
36° 23°
Mostly Clear.
Tue
36° 24°
Mostly Clear.
Wed
38° 23°
Mostly Clear with a 24% chance of rain.
Thu
36° 25°
Partly Cloudy with a 60% chance of rain.
Fri
37° 24°
Drizzle, 50% chance.
Sat
37° 23°
Rain, 70% chance.
Sun
37° 22°
Rain, 64% chance.
TimeTempConditionsPrecipWindHumidity
Now 30° Mostly Clear 16% 3 mph NE 67%
10 PM 28° Clear 23% 3 mph N 71%
11 PM 28° Mostly Clear 23% 2 mph NNE 72%
12 AM 27° Partly Cloudy 16% 3 mph NE 73%
1 AM 27° Mostly Cloudy 11% 3 mph ENE 75%
2 AM 26° Partly Cloudy 16% 3 mph ENE 78%
3 AM 26° Mostly Clear 17% 3 mph ENE 80%
4 AM 25° Mostly Clear 17% 3 mph E 81%
5 AM 24° Mostly Clear 18% 4 mph E 81%
6 AM 24° Mostly Clear 13% 4 mph E 80%
7 AM 26° Mostly Clear 13% 4 mph E 76%
8 AM 27° Mostly Clear 13% 4 mph ENE 70%
9 AM 31° Mostly Clear 8% 4 mph ENE 64%
10 AM 32° Mostly Clear 7% 4 mph NE 60%
11 AM 33° Partly Cloudy 15% 6 mph NNE 56%
12 PM 34° Partly Cloudy 7% 6 mph NNE 52%
1 PM 35° Partly Cloudy 15% 7 mph NNE 51%
2 PM 36° Partly Cloudy 15% 7 mph NNE 51%
3 PM 36° Mostly Clear 14% 8 mph NNE 51%
4 PM 36° Mostly Clear 14% 7 mph NNE 52%
5 PM 36° Mostly Clear 14% 7 mph NNE 54%
6 PM 36° Mostly Clear 14% 6 mph NNE 56%
7 PM 35° Mostly Clear 14% 6 mph NE 58%
8 PM 34° Mostly Clear 14% 6 mph NE 61%
15-Day Forecast
Today
7/20
Mostly Clear
16%
23°
36°
Tue
7/21
Mostly Clear
17%
24°
36°
Wed
7/22
Mostly Clear
24%
23°
38°
Thu
7/23
Partly Cloudy
60%
25°
36°
Fri
7/24
Drizzle
50%
24°
37°
Sat
7/25
Rain
70%
23°
37°
Sun
7/26
Rain
64%
22°
37°
Mon
7/27
Clear
17%
24°
38°
Tue
7/28
Drizzle
44%
24°
38°
Wed
7/29
Drizzle
44%
23°
38°
Thu
7/30
Drizzle
60%
23°
37°
Fri
7/31
Drizzle
60%
23°
37°
Sat
8/1
Drizzle
60%
22°
37°
Sun
8/2
Drizzle
60%
23°
37°
Mon
8/3
Drizzle
60%
23°
36°
64
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
64 AQI 16.1 µg/m³
O3
Ground-level ozone
29 AQI 31 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 64 Moderate 29 64
Wed 60 Moderate 26 60
Thu 47 Good 28 47
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 Jul 21, 01:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE1043 J/kg
MLCAPE599 J/kg
MUCAPE1043 J/kg
SBCIN-162 J/kg
MLCIN0 J/kg
Lifted Index-3.0
Kinematics
0–6 km Shear23 kt
0–1 km Shear10 kt
Eff. Shear24 kt
0–1 km SRH-24
0–3 km SRH-27
Eff. SRH-27
Storm Motion354° @ 22 kt
0–1 km EHI-0.2
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index32.1
Thermo & Levels
PWAT1.97 in
0–3 km LR6.5 °C/km
700–500 LR5.2 °C/km
Total Totals45.7
LCL892 hPa
LFC810 hPa
EL177 hPa
Freezing Lvl16,686 ft