Heat Advisory — Ashley, AR, Chicot, AR, Morehouse, LA, West Carroll, LA, East Carroll, LA, Richland, LA, Madison, LA, Franklin, LA, Catahoula, LA, Tensas, LA, Concordia, LA, Bolivar, MS, Sunflower, MS, Leflore, MS, Grenada, MS, Carroll, MS, Washington, MS, Humphreys, 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, Adams, MS, Franklin, MS, Lincoln, MS, Lawrence, MS, Jefferson Davis, MS, Marion, MS 7:00 p. m. Heat Advisory — Ashley, AR, Chicot, AR, Morehouse, LA, West Carroll, LA, East Carroll, LA, Richland, LA, Madison, LA, Franklin, LA, Catahoula, LA, Tensas, LA, Concordia, LA, Bolivar, MS, Sunflower, MS, Leflore, MS, Grenada, MS, Carroll, MS, Washington, MS, Humphreys, 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, Adams, MS, Franklin, MS, Lincoln, MS, Lawrence, MS, Jefferson Davis, MS, Marion, MS 7:00 p. m.

Jefferson County, Mississippi, 39069, United States

Last updated: 3:51 p. m. CDT  ·  Refresh
34°C
Feels like 40°
Mostly Clear
▲ 34°  /  ▼ 22°
Wind
5 mph SW
Humidity
56%
Dew Point
23°
Pressure
29,71 inHg
Visibility
10 mi
UV Index
7,4
Cloud Cover
26%
Sunrise
6:47 a. m.
Sunset
7:12 p. m.
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Jefferson County is currently mostly clear at 34°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2123 J/kg) — isolated convective development possible. Sunrise: 6:47A. M. · Sunset: 7:12P. M..

Alerts

Heat Advisory
Ashley, AR, Chicot, AR, Morehouse, LA, West Carroll, LA, East Carroll, LA, Richland, LA, Madison, LA, Franklin, LA, Catahoula, LA, Tensas, LA, Concordia, LA, Bolivar, MS, Sunflower, MS, Leflore, MS, Grenada, MS, Carroll, MS, Washington, MS, Humphreys, 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, Adams, MS, Franklin, MS, Lincoln, MS, Lawrence, MS, Jefferson Davis, MS, Marion, MS
Expires 7:00 p. m.
Heat Advisory
Ashley, AR, Chicot, AR, Morehouse, LA, West Carroll, LA, East Carroll, LA, Richland, LA, Madison, LA, Franklin, LA, Catahoula, LA, Tensas, LA, Concordia, LA, Bolivar, MS, Sunflower, MS, Leflore, MS, Grenada, MS, Carroll, MS, Washington, MS, Humphreys, 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, Adams, MS, Franklin, MS, Lincoln, MS, Lawrence, MS, Jefferson Davis, MS, Marion, MS
Expires 7:00 p. m.
26 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
34°
15%
4 p. m.
32°
14%
5 p. m.
33°
13%
6 p. m.
31°
13%
7 p. m.
30°
13%
8 p. m.
28°
13%
9 p. m.
27°
13%
10 p. m.
27°
8%
11 p. m.
26°
8%
12 a. m.
26°
8%
1 a. m.
26°
8%
2 a. m.
26°
9%
3 a. m.
25°
9%
4 a. m.
25°
9%
5 a. m.
22°
9%
6 a. m.
22°
9%
7 a. m.
23°
16%
8 a. m.
26°
26%
9 a. m.
27°
27%
10 a. m.
30°
27%
11 a. m.
31°
28%
12 p. m.
32°
24%
1 p. m.
33°
24%
2 p. m.
33°
25%
7-Day Forecast
Today
34° 22°
Partly Cloudy with a 29% chance of rain.
Mon
37° 22°
Partly Cloudy with a 33% chance of rain.
Tue
35° 22°
Partly Cloudy with a 25% chance of rain.
Wed
34° 22°
Mostly Clear.
Thu
36° 21°
Clear.
Fri
38° 21°
Clear with a 50% chance of rain.
Sat
37° 22°
Clear with a 35% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 34° Mostly Clear 15% 5 mph SW 56%
4 p. m. 32° Partly Cloudy 14% 5 mph SSW 60%
5 p. m. 33° Partly Cloudy 13% 4 mph S 64%
6 p. m. 31° Partly Cloudy 13% 5 mph SSE 70%
7 p. m. 30° Partly Cloudy 13% 4 mph SSE 74%
8 p. m. 28° Partly Cloudy 13% 4 mph S 76%
9 p. m. 27° Partly Cloudy 13% 4 mph SSW 80%
10 p. m. 27° Mostly Clear 8% 3 mph S 82%
11 p. m. 26° Mostly Clear 8% 3 mph S 84%
12 a. m. 26° Mostly Clear 8% 4 mph S 87%
1 a. m. 26° Mostly Clear 8% 3 mph SSW 87%
2 a. m. 26° Clear 9% 3 mph SW 86%
3 a. m. 25° Clear 9% 4 mph SW 86%
4 a. m. 25° Clear 9% 3 mph SW 87%
5 a. m. 22° Clear 9% 3 mph SW 89%
6 a. m. 22° Clear 9% 3 mph SW 90%
7 a. m. 23° Clear 16% 3 mph WSW 85%
8 a. m. 26° Clear 26% 3 mph W 76%
9 a. m. 27° Clear 27% 4 mph W 70%
10 a. m. 30° Clear 27% 3 mph W 66%
11 a. m. 31° Mostly Clear 28% 3 mph W 62%
12 p. m. 32° Mostly Clear 24% 3 mph W 58%
1 p. m. 33° Partly Cloudy 24% 3 mph W 57%
2 p. m. 33° Partly Cloudy 25% 3 mph W 57%
15-Day Forecast
Today
9/13
Partly Cloudy
29%
22°
34°
Mon
9/14
Partly Cloudy
33%
22°
37°
Tue
9/15
Partly Cloudy
25%
22°
35°
Wed
9/16
Mostly Clear
12%
22°
34°
Thu
9/17
Clear
9%
21°
36°
Fri
9/18
Clear
50%
21°
38°
Sat
9/19
Clear
35%
22°
37°
Sun
9/20
Clear
60%
19°
35°
Mon
9/21
Drizzle
60%
19°
34°
Tue
9/22
Drizzle
60%
18°
33°
Wed
9/23
Drizzle
60%
14°
32°
Thu
9/24
Drizzle
60%
19°
31°
Fri
9/25
Drizzle
60%
19°
32°
Sat
9/26
Drizzle
60%
18°
31°
Sun
9/27
Drizzle
60%
18°
32°
26
Good
U.S. Air Quality Index · Dominant: O3
50 100 150 200

Air quality is satisfactory and poses little or no health risk.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
18 AQI 3.4 µg/m³
O3
Ground-level ozone
Dominant
26 AQI 29 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Mon 26 Good 26 18
Tue 28 Good 28 28
Wed 42 Good 37 42
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 dom. sept. 13, 19:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE3013 J/kg
MLCAPE3232 J/kg
MUCAPE3589 J/kg
SBCIN-0 J/kg
MLCIN-9 J/kg
Lifted Index-5.5
Kinematics
0–6 km Shear6 kt
0–1 km Shear1 kt
Eff. Shear4 kt
0–1 km SRH3
0–3 km SRH23
Eff. SRH23
Storm Motion101° @ 12 kt
0–1 km EHI0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index38.4
Thermo & Levels
PWAT2.10 in
0–3 km LR8.3 °C/km
700–500 LR4.6 °C/km
Total Totals46.9
LCL861 hPa
LFC857 hPa
EL140 hPa
Freezing Lvl16,385 ft