Severe Thunderstorm Watch 8:00 PM Extreme Heat Warning — Pointe Coupee, LA, West Feliciana, LA, East Feliciana, LA, St. Helena, LA, Washington, LA, Iberville, LA, West Baton Rouge, LA, East Baton Rouge, LA, Assumption, LA, St. James, LA, St. John The Baptist, LA, Upper St. Bernard, LA, Lower St. Bernard, LA, Northern Tangipahoa, LA, Southeast St. Tammany, LA, Western Orleans, LA, Eastern Orleans, LA, Northern St. Tammany, LA, Southwestern St. Tammany, LA, Central Tangipahoa, LA, Lower Tangipahoa, LA, Northern Livingston, LA, Southern Livingston, LA, Western Ascension, LA, Eastern Ascension, LA, Upper Jefferson, LA, Upper Plaquemines, LA, Central Plaquemines, LA, Lower Plaquemines, LA, Central Jefferson, LA, Coastal Jefferson, LA, Upper Lafourche, LA, Lower Lafourche, LA, Upper Terrebonne, LA, Lower Terrebonne, LA, Upper St. Charles, LA, Central St. Charles, LA, Lower St. Charles, LA, Wilkinson, MS, Amite, MS, Pike, MS, Walthall, MS, Pearl River, MS, Northern Hancock, MS, Northern Harrison, MS, Northern Jackson, MS, Southern Hancock, MS, Southern Harrison, MS, Southern Jackson, MS 8:00 PM Heat Advisory — Pointe Coupee, LA, West Feliciana, LA, East Feliciana, LA, St. Helena, LA, Washington, LA, Iberville, LA, West Baton Rouge, LA, East Baton Rouge, LA, Assumption, LA, St. James, LA, St. John The Baptist, LA, Upper St. Bernard, LA, Lower St. Bernard, LA, Northern Tangipahoa, LA, Southeast St. Tammany, LA, Western Orleans, LA, Eastern Orleans, LA, Northern St. Tammany, LA, Southwestern St. Tammany, LA, Central Tangipahoa, LA, Lower Tangipahoa, LA, Northern Livingston, LA, Southern Livingston, LA, Western Ascension, LA, Eastern Ascension, LA, Upper Jefferson, LA, Upper Plaquemines, LA, Central Plaquemines, LA, Lower Plaquemines, LA, Central Jefferson, LA, Coastal Jefferson, LA, Upper Lafourche, LA, Lower Lafourche, LA, Upper Terrebonne, LA, Lower Terrebonne, LA, Upper St. Charles, LA, Central St. Charles, LA, Lower St. Charles, LA, Wilkinson, MS, Amite, MS, Pike, MS, Walthall, MS, Pearl River, MS, Northern Hancock, MS, Northern Harrison, MS, Northern Jackson, MS, Southern Hancock, MS, Southern Harrison, MS, Southern Jackson, MS 8:00 PM

Walthall County, Mississippi, United States

Last updated: 2:58 PM CDT  ·  Refresh
34°C
Feels like 41°
Partly Cloudy
▲ 36°  /  ▼ 22°
Wind
5 mph S
Humidity
58%
Dew Point
23°
Pressure
29.66 inHg
Visibility
10 mi
UV Index
8.5
Cloud Cover
37%
Sunrise
6:30 AM
Sunset
7:36 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Walthall County is currently partly cloudy at 34°C. Precipitation is likely — peak probability 90% around 5 PM. Atmospheric instability is elevated (CAPE up to 2376 J/kg) — isolated convective development possible. Sunrise: 6:30AM · Sunset: 7:36PM.

Alerts

Severe Thunderstorm Watch
Expires 8:00 PM
Extreme Heat Warning
Pointe Coupee, LA, West Feliciana, LA, East Feliciana, LA, St. Helena, LA, Washington, LA, Iberville, LA, West Baton Rouge, LA, East Baton Rouge, LA, Assumption, LA, St. James, LA, St. John The Baptist, LA, Upper St. Bernard, LA, Lower St. Bernard, LA, Northern Tangipahoa, LA, Southeast St. Tammany, LA, Western Orleans, LA, Eastern Orleans, LA, Northern St. Tammany, LA, Southwestern St. Tammany, LA, Central Tangipahoa, LA, Lower Tangipahoa, LA, Northern Livingston, LA, Southern Livingston, LA, Western Ascension, LA, Eastern Ascension, LA, Upper Jefferson, LA, Upper Plaquemines, LA, Central Plaquemines, LA, Lower Plaquemines, LA, Central Jefferson, LA, Coastal Jefferson, LA, Upper Lafourche, LA, Lower Lafourche, LA, Upper Terrebonne, LA, Lower Terrebonne, LA, Upper St. Charles, LA, Central St. Charles, LA, Lower St. Charles, LA, Wilkinson, MS, Amite, MS, Pike, MS, Walthall, MS, Pearl River, MS, Northern Hancock, MS, Northern Harrison, MS, Northern Jackson, MS, Southern Hancock, MS, Southern Harrison, MS, Southern Jackson, MS
Expires 8:00 PM
Heat Advisory
Pointe Coupee, LA, West Feliciana, LA, East Feliciana, LA, St. Helena, LA, Washington, LA, Iberville, LA, West Baton Rouge, LA, East Baton Rouge, LA, Assumption, LA, St. James, LA, St. John The Baptist, LA, Upper St. Bernard, LA, Lower St. Bernard, LA, Northern Tangipahoa, LA, Southeast St. Tammany, LA, Western Orleans, LA, Eastern Orleans, LA, Northern St. Tammany, LA, Southwestern St. Tammany, LA, Central Tangipahoa, LA, Lower Tangipahoa, LA, Northern Livingston, LA, Southern Livingston, LA, Western Ascension, LA, Eastern Ascension, LA, Upper Jefferson, LA, Upper Plaquemines, LA, Central Plaquemines, LA, Lower Plaquemines, LA, Central Jefferson, LA, Coastal Jefferson, LA, Upper Lafourche, LA, Lower Lafourche, LA, Upper Terrebonne, LA, Lower Terrebonne, LA, Upper St. Charles, LA, Central St. Charles, LA, Lower St. Charles, LA, Wilkinson, MS, Amite, MS, Pike, MS, Walthall, MS, Pearl River, MS, Northern Hancock, MS, Northern Harrison, MS, Northern Jackson, MS, Southern Hancock, MS, Southern Harrison, MS, Southern Jackson, MS
Expires 8:00 PM
42 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
34°
43%
3 PM
31°
73%
4 PM
31°
88%
5 PM
31°
90%
6 PM
27°
78%
7 PM
26°
68%
8 PM
25°
60%
9 PM
24°
58%
10 PM
24°
24%
11 PM
24°
24%
12 AM
23°
9%
1 AM
24°
9%
2 AM
24°
9%
3 AM
24°
9%
4 AM
24°
9%
5 AM
22°
3%
6 AM
22°
3%
7 AM
24°
3%
8 AM
26°
3%
9 AM
30°
3%
10 AM
31°
3%
11 AM
33°
3%
12 PM
34°
3%
1 PM
35°
3%
7-Day Forecast
Today
36° 22°
Mostly Cloudy with a 90% chance of rain.
Sat
39° 22°
Partly Cloudy.
Sun
39° 23°
Mostly Clear with a 28% chance of rain.
Mon
36° 22°
Partly Cloudy with a 62% chance of rain.
Tue
35° 22°
Drizzle, 42% chance.
Wed
37° 22°
Heavy Rain, 82% chance.
Thu
35° 23°
Drizzle, 52% chance.
TimeTempConditionsPrecipWindHumidity
Now 34° Partly Cloudy 43% 5 mph S 58%
3 PM 31° Overcast 73% 12 mph S 69%
4 PM 31° Overcast 88% 10 mph SSW 70%
5 PM 31° Overcast 90% 6 mph S 75%
6 PM 27° Thunderstorm 78% 6 mph W 78%
7 PM 26° Rain 68% 4 mph S 84%
8 PM 25° Drizzle 60% 3 mph SSW 88%
9 PM 24° Rain 58% 3 mph SW 94%
10 PM 24° Mostly Cloudy 24% 3 mph WSW 93%
11 PM 24° Mostly Cloudy 24% 3 mph WSW 92%
12 AM 23° Mostly Cloudy 9% 3 mph W 91%
1 AM 24° Mostly Cloudy 9% 3 mph WSW 90%
2 AM 24° Mostly Cloudy 9% 3 mph WSW 90%
3 AM 24° Partly Cloudy 9% 3 mph WSW 89%
4 AM 24° Mostly Cloudy 9% 3 mph W 90%
5 AM 22° Mostly Cloudy 3% 2 mph W 90%
6 AM 22° Mostly Cloudy 3% 2 mph W 90%
7 AM 24° Mostly Cloudy 3% 2 mph WNW 83%
8 AM 26° Mostly Cloudy 3% 3 mph NW 75%
9 AM 30° Mostly Cloudy 3% 3 mph NW 69%
10 AM 31° Mostly Cloudy 3% 3 mph NW 63%
11 AM 33° Mostly Cloudy 3% 4 mph NNW 57%
12 PM 34° Mostly Cloudy 3% 4 mph NNW 52%
1 PM 35° Partly Cloudy 3% 4 mph N 49%
15-Day Forecast
Today
8/21
Mostly Cloudy
90%
22°
36°
Sat
8/22
Partly Cloudy
9%
22°
39°
Sun
8/23
Mostly Clear
28%
23°
39°
Mon
8/24
Partly Cloudy
62%
22°
36°
Tue
8/25
Drizzle
42%
22°
35°
Wed
8/26
Heavy Rain
82%
22°
37°
Thu
8/27
Drizzle
52%
23°
35°
Fri
8/28
Drizzle
53%
22°
37°
Sat
8/29
Drizzle
44%
23°
36°
Sun
8/30
Drizzle
44%
23°
38°
Mon
8/31
Drizzle
60%
23°
37°
Tue
9/1
Drizzle
60%
23°
38°
Wed
9/2
Drizzle
60%
23°
38°
Thu
9/3
Drizzle
60%
22°
38°
Fri
9/4
Drizzle
60%
22°
37°
42
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
42 AQI 7.5 µg/m³
O3
Ground-level ozone
34 AQI 38 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Sat 42 Good 34 42
Sun 41 Good 37 41
Mon 53 Moderate 36 53
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, 17:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE3248 J/kg
MLCAPE3243 J/kg
MUCAPE3539 J/kg
SBCIN-58 J/kg
MLCIN-29 J/kg
Lifted Index-7.4
Kinematics
0–6 km Shear15 kt
0–1 km Shear5 kt
Eff. Shear12 kt
0–1 km SRH16
0–3 km SRH52
Eff. SRH52
Storm Motion47° @ 15 kt
0–1 km EHI0.3
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index37.0
Thermo & Levels
PWAT2.09 in
0–3 km LR7.8 °C/km
700–500 LR6.1 °C/km
Total Totals50.9
LCL853 hPa
LFC803 hPa
EL146 hPa
Freezing Lvl14,836 ft