Heat Advisory — 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, Issaquena, MS, Sharkey, MS, Yazoo, MS, Madison, MS, Leake, 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, Winston, MS, Noxubee, MS, Neshoba, MS, Kemper, MS, Scott, MS, Newton, MS, Lauderdale, MS, Smith, MS, Jasper, MS, Clarke, MS, Covington, MS, Jones, MS, Lamar, MS, Forrest, MS 7:00 PM

Jefferson County, Mississippi, 39069, United States

Last updated: 12:57 AM CDT  ·  Refresh
25°C
Feels like 30°
Partly Cloudy
▲ 34°  /  ▼ 22°
Wind
3 mph S
Humidity
90%
Dew Point
23°
Pressure
29.75 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
54%
Sunrise
6:47 AM
Sunset
7:11 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Jefferson County is currently partly cloudy at 25°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2318 J/kg) — isolated convective development possible. Sunrise: 6:47AM · Sunset: 7:11PM.

Alerts

Heat Advisory
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, Issaquena, MS, Sharkey, MS, Yazoo, MS, Madison, MS, Leake, 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, Winston, MS, Noxubee, MS, Neshoba, MS, Kemper, MS, Scott, MS, Newton, MS, Lauderdale, MS, Smith, MS, Jasper, MS, Clarke, MS, Covington, MS, Jones, MS, Lamar, MS, Forrest, MS
Expires 7:00 PM
26 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
25°
10%
1 AM
24°
8%
2 AM
24°
9%
3 AM
24°
9%
4 AM
24°
18%
5 AM
22°
18%
6 AM
22°
21%
7 AM
24°
28%
8 AM
26°
41%
9 AM
28°
42%
10 AM
30°
41%
11 AM
31°
41%
12 PM
32°
33%
1 PM
34°
37%
2 PM
33°
37%
3 PM
33°
37%
4 PM
33°
40%
5 PM
32°
36%
6 PM
32°
41%
7 PM
31°
33%
8 PM
29°
23%
9 PM
28°
20%
10 PM
28°
20%
11 PM
27°
20%
7-Day Forecast
Today
34° 22°
Partly Cloudy with a 42% chance of rain.
Tue
37° 22°
Mostly Clear.
Wed
36° 23°
Clear.
Thu
35° 21°
Partly Cloudy.
Fri
36° 20°
Rain, 55% chance.
Sat
35° 19°
Clear with a 22% chance of rain.
Sun
34° 18°
Rain, 41% chance.
TimeTempConditionsPrecipWindHumidity
Now 25° Partly Cloudy 10% 3 mph S 90%
1 AM 24° Partly Cloudy 8% 3 mph S 89%
2 AM 24° Partly Cloudy 9% 2 mph S 89%
3 AM 24° Partly Cloudy 9% 2 mph SSW 89%
4 AM 24° Partly Cloudy 18% 3 mph SW 90%
5 AM 22° Partly Cloudy 18% 3 mph SW 91%
6 AM 22° Partly Cloudy 21% 2 mph SSW 92%
7 AM 24° Partly Cloudy 28% 3 mph WSW 86%
8 AM 26° Partly Cloudy 41% 4 mph W 79%
9 AM 28° Mostly Cloudy 42% 4 mph WNW 72%
10 AM 30° Partly Cloudy 41% 4 mph NW 67%
11 AM 31° Partly Cloudy 41% 3 mph NW 63%
12 PM 32° Mostly Clear 33% 2 mph NNW 58%
1 PM 34° Mostly Clear 37% 2 mph NNW 57%
2 PM 33° Mostly Clear 37% 2 mph SSE 56%
3 PM 33° Mostly Clear 37% 3 mph SSE 56%
4 PM 33° Mostly Clear 40% 3 mph SSE 59%
5 PM 32° Mostly Clear 36% 3 mph SSE 62%
6 PM 32° Mostly Clear 41% 4 mph S 66%
7 PM 31° Mostly Clear 33% 4 mph S 70%
8 PM 29° Mostly Clear 23% 4 mph S 74%
9 PM 28° Mostly Clear 20% 4 mph S 78%
10 PM 28° Mostly Clear 20% 3 mph SSE 79%
11 PM 27° Mostly Clear 20% 3 mph SSE 80%
15-Day Forecast
Today
9/14
Partly Cloudy
42%
22°
34°
Tue
9/15
Mostly Clear
12%
22°
37°
Wed
9/16
Clear
7%
23°
36°
Thu
9/17
Partly Cloudy
3%
21°
35°
Fri
9/18
Rain
55%
20°
36°
Sat
9/19
Clear
22%
19°
35°
Sun
9/20
Rain
41%
18°
34°
Mon
9/21
Rain
68%
18°
33°
Tue
9/22
Drizzle
68%
19°
32°
Wed
9/23
Drizzle
51%
19°
35°
Thu
9/24
Drizzle
60%
19°
34°
Fri
9/25
Drizzle
60%
19°
31°
Sat
9/26
Drizzle
60%
19°
32°
Sun
9/27
Drizzle
60%
19°
32°
Mon
9/28
Drizzle
60%
19°
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
Today 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 Mon Sep 14, 04:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE639 J/kg
MLCAPE833 J/kg
MUCAPE1135 J/kg
SBCIN-257 J/kg
MLCIN-154 J/kg
Lifted Index-2.5
Kinematics
0–6 km Shear5 kt
0–1 km Shear7 kt
Eff. Shear11 kt
0–1 km SRH33
0–3 km SRH76
Eff. SRH109
Storm Motion81° @ 19 kt
0–1 km EHI0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index27.8
Thermo & Levels
PWAT1.83 in
0–3 km LR4.7 °C/km
700–500 LR6.0 °C/km
Total Totals47.5
LCL970 hPa
LFC689 hPa
EL196 hPa
Freezing Lvl16,214 ft