Severe Thunderstorm Watch 8:00 PM Severe Thunderstorm Watch 8:00 PM Excessive Heat Warning — 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, Bolivar, MS, Sunflower, MS, Leflore, MS, Washington, MS, Humphreys, MS, Holmes, MS, Grenada, MS, Carroll, 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, Scott, MS, Newton, MS, Lauderdale, MS, Smith, MS, Jasper, MS, Clarke, MS, Covington, MS, Jones, MS, Lamar, MS, Forrest, MS 8:00 PM

Marion County, Mississippi, United States

Last updated: 7:17 PM CDT  ·  Refresh
23°C
Feels like 26°
Thunderstorm
▲ 37°  /  ▼ 22°
Wind
8 mph SSW
Humidity
95%
Dew Point
23°
Pressure
29.80 inHg
Visibility
8 mi
UV Index
0.4
Cloud Cover
95%
Sunrise
6:28 AM
Sunset
7:35 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Marion County is currently thunderstorm at 24°C. Precipitation is likely — peak probability 73% around 8 PM. Atmospheric instability is elevated (CAPE up to 2655 J/kg) — isolated convective development possible. Sunrise: 6:28AM · Sunset: 7:35PM.

Alerts

Severe Thunderstorm Watch
Expires 8:00 PM
Severe Thunderstorm Watch
Expires 8:00 PM
Excessive Heat Warning
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, Bolivar, MS, Sunflower, MS, Leflore, MS, Washington, MS, Humphreys, MS, Holmes, MS, Grenada, MS, Carroll, 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, Scott, MS, Newton, MS, Lauderdale, MS, Smith, MS, Jasper, MS, Clarke, MS, Covington, MS, Jones, MS, Lamar, MS, Forrest, MS
Expires 8:00 PM
41 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
23°
67%
8 PM
24°
73%
9 PM
23°
40%
10 PM
23°
34%
11 PM
23°
33%
12 AM
22°
28%
1 AM
23°
12%
2 AM
23°
12%
3 AM
23°
12%
4 AM
23°
4%
5 AM
22°
4%
6 AM
22°
3%
7 AM
22°
3%
8 AM
24°
3%
9 AM
26°
3%
10 AM
28°
3%
11 AM
29°
3%
12 PM
31°
3%
1 PM
33°
3%
2 PM
35°
3%
3 PM
35°
5%
4 PM
35°
5%
5 PM
33°
5%
6 PM
33°
6%
7-Day Forecast
Tonight
37° 22°
Thunderstorm, 67% chance.
Sat
36° 22°
Partly Cloudy.
Sun
37° 24°
Partly Cloudy with a 28% chance of rain.
Mon
32° 23°
Partly Cloudy with a 52% chance of rain.
Tue
35° 23°
Mostly Clear with a 44% chance of rain.
Wed
33° 23°
Thunderstorm, 80% chance.
Thu
33° 23°
Rain, 66% chance.
TimeTempConditionsPrecipWindHumidity
Now 23° Thunderstorm 67% 8 mph SSW 95%
8 PM 24° Rain 73% 5 mph SSW 95%
9 PM 23° Rain 40% 3 mph S 95%
10 PM 23° Overcast 34% 3 mph SW 95%
11 PM 23° Overcast 33% 3 mph WSW 95%
12 AM 22° Overcast 28% 3 mph WSW 96%
1 AM 23° Overcast 12% 3 mph WSW 96%
2 AM 23° Overcast 12% 2 mph SW 96%
3 AM 23° Overcast 12% 3 mph WSW 96%
4 AM 23° Overcast 4% 3 mph W 96%
5 AM 22° Overcast 4% 3 mph WNW 95%
6 AM 22° Overcast 3% 2 mph WNW 95%
7 AM 22° Overcast 3% 2 mph NW 93%
8 AM 24° Mostly Cloudy 3% 3 mph NW 86%
9 AM 26° Mostly Cloudy 3% 4 mph NNW 80%
10 AM 28° Partly Cloudy 3% 4 mph NNW 73%
11 AM 29° Partly Cloudy 3% 3 mph NNW 66%
12 PM 31° Partly Cloudy 3% 3 mph N 59%
1 PM 33° Partly Cloudy 3% 4 mph N 53%
2 PM 35° Partly Cloudy 3% 3 mph N 49%
3 PM 35° Mostly Clear 5% 4 mph N 45%
4 PM 35° Mostly Clear 5% 4 mph N 44%
5 PM 33° Mostly Clear 5% 3 mph N 48%
6 PM 33° Mostly Clear 6% 3 mph NNE 51%
15-Day Forecast
Today
8/21
Thunderstorm
67%
22°
37°
Sat
8/22
Partly Cloudy
12%
22°
36°
Sun
8/23
Partly Cloudy
28%
24°
37°
Mon
8/24
Partly Cloudy
52%
23°
32°
Tue
8/25
Mostly Clear
44%
23°
35°
Wed
8/26
Thunderstorm
80%
23°
33°
Thu
8/27
Rain
66%
23°
33°
Fri
8/28
Drizzle
57%
23°
34°
Sat
8/29
Rain
66%
23°
36°
Sun
8/30
Drizzle
47%
23°
36°
Mon
8/31
Clear
36%
23°
36°
Tue
9/1
Drizzle
60%
23°
37°
Wed
9/2
Drizzle
60%
23°
37°
Thu
9/3
Drizzle
60%
23°
37°
Fri
9/4
Drizzle
60%
22°
36°
41
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
41 AQI 7.3 µg/m³
O3
Ground-level ozone
33 AQI 37 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 41 Good 33 41
Sun 41 Good 36 41
Mon 54 Moderate 35 54
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, 23:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE438 J/kg
MLCAPE1725 J/kg
MUCAPE3002 J/kg
SBCIN-243 J/kg
MLCIN-109 J/kg
Lifted Index-2.3
Kinematics
0–6 km Shear21 kt
0–1 km Shear14 kt
Eff. Shear18 kt
0–1 km SRH80
0–3 km SRH117
Eff. SRH117
Storm Motion28° @ 18 kt
0–1 km EHI0.2
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index41.7
Thermo & Levels
PWAT2.56 in
0–3 km LR4.6 °C/km
700–500 LR5.6 °C/km
Total Totals50.8
LCL996 hPa
LFC728 hPa
EL258 hPa
Freezing Lvl15,135 ft