Extreme Heat Warning — Morehouse, LA, West Carroll, LA, East Carroll, LA, Richland, LA, Madison, LA, Franklin, LA, Catahoula, LA, Tensas, LA, Concordia, LA, 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 8:00 PM

Jefferson County, Mississippi, 39069, United States

Last updated: 9:24 PM CDT  ·  Refresh
31°C
Feels like 33°
Mostly Clear
▲ 37°  /  ▼ 23°
Wind
4 mph SSE
Humidity
61%
Dew Point
21°
Pressure
29.70 inHg
Visibility
8 mi
UV Index
0.0
Cloud Cover
15%
Sunrise
6:32 AM
Sunset
7:42 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Jefferson County is currently mostly clear at 30°C. Precipitation is likely — peak probability 52% around 2 PM. Atmospheric instability is elevated (CAPE up to 2968 J/kg) — isolated convective development possible. Sunrise: 6:32AM · Sunset: 7:42PM.

Alerts

Extreme Heat Warning
Morehouse, LA, West Carroll, LA, East Carroll, LA, Richland, LA, Madison, LA, Franklin, LA, Catahoula, LA, Tensas, LA, Concordia, LA, 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 8:00 PM
50 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
31°
13%
10 PM
29°
23%
11 PM
27°
16%
12 AM
26°
14%
1 AM
26°
3%
2 AM
26°
3%
3 AM
26°
3%
4 AM
26°
3%
5 AM
23°
3%
6 AM
23°
3%
7 AM
24°
3%
8 AM
27°
10%
9 AM
29°
10%
10 AM
31°
36%
11 AM
33°
39%
12 PM
34°
47%
1 PM
37°
51%
2 PM
37°
52%
3 PM
37°
47%
4 PM
37°
38%
5 PM
36°
38%
6 PM
36°
42%
7 PM
34°
43%
8 PM
33°
39%
7-Day Forecast
Tonight
37° 23°
Mostly Clear.
Fri
39° 23°
Partly Cloudy with a 47% chance of rain.
Sat
39° 22°
Mostly Clear.
Sun
40° 24°
Drizzle, 54% chance.
Mon
36° 24°
Drizzle, 50% chance.
Tue
38° 24°
Rain, 70% chance.
Wed
38° 23°
Drizzle, 63% chance.
TimeTempConditionsPrecipWindHumidity
Now 31° Mostly Clear 13% 4 mph SSE 61%
10 PM 29° Mostly Clear 23% 5 mph SSE 63%
11 PM 27° Partly Cloudy 16% 5 mph SSE 69%
12 AM 26° Partly Cloudy 14% 6 mph SSE 76%
1 AM 26° Partly Cloudy 3% 6 mph SSW 82%
2 AM 26° Mostly Clear 3% 4 mph SW 83%
3 AM 26° Clear 3% 4 mph SW 83%
4 AM 26° Clear 3% 4 mph SSW 82%
5 AM 23° Mostly Clear 3% 4 mph SW 84%
6 AM 23° Partly Cloudy 3% 4 mph SW 86%
7 AM 24° Partly Cloudy 3% 4 mph SW 84%
8 AM 27° Mostly Clear 10% 5 mph WSW 75%
9 AM 29° Clear 10% 6 mph WSW 66%
10 AM 31° Clear 36% 6 mph W 59%
11 AM 33° Clear 39% 6 mph W 53%
12 PM 34° Mostly Clear 47% 6 mph W 47%
1 PM 37° Partly Cloudy 51% 6 mph W 45%
2 PM 37° Partly Cloudy 52% 5 mph W 47%
3 PM 37° Rain 47% 6 mph W 48%
4 PM 37° Rain 38% 6 mph WSW 50%
5 PM 36° Rain 38% 5 mph WSW 54%
6 PM 36° Rain 42% 6 mph WSW 58%
7 PM 34° Rain 43% 6 mph SW 63%
8 PM 33° Overcast 39% 6 mph SW 69%
15-Day Forecast
Today
8/20
Mostly Clear
13%
23°
37°
Fri
8/21
Partly Cloudy
47%
23°
39°
Sat
8/22
Mostly Clear
14%
22°
39°
Sun
8/23
Drizzle
54%
24°
40°
Mon
8/24
Drizzle
50%
24°
36°
Tue
8/25
Rain
70%
24°
38°
Wed
8/26
Drizzle
63%
23°
38°
Thu
8/27
Rain
82%
22°
36°
Fri
8/28
Drizzle
44%
21°
38°
Sat
8/29
Drizzle
44%
21°
38°
Sun
8/30
Drizzle
51%
22°
38°
Mon
8/31
Drizzle
60%
23°
38°
Tue
9/1
Drizzle
60%
23°
38°
Wed
9/2
Drizzle
60%
23°
37°
Thu
9/3
Drizzle
60%
23°
37°
50
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
50 AQI 9.0 µg/m³
O3
Ground-level ozone
35 AQI 38 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 50 Good 35 50
Sat 49 Good 35 49
Sun 45 Good 37 45
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, 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
SBCAPE1134 J/kg
MLCAPE1828 J/kg
MUCAPE2576 J/kg
SBCIN-283 J/kg
MLCIN-122 J/kg
Lifted Index-3.1
Kinematics
0–6 km Shear14 kt
0–1 km Shear4 kt
Eff. Shear15 kt
0–1 km SRH6
0–3 km SRH30
Eff. SRH23
Storm Motion66° @ 15 kt
0–1 km EHI0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index30.3
Thermo & Levels
PWAT1.78 in
0–3 km LR6.2 °C/km
700–500 LR5.9 °C/km
Total Totals48.8
LCL884 hPa
LFC710 hPa
EL194 hPa
Freezing Lvl15,938 ft