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, Northern Tangipahoa, 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, Wilkinson, MS, Amite, MS, Pike, MS, Walthall, MS, Pearl River, MS, Northern Hancock, MS, Northern Harrison, MS, Northern 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, Northern Tangipahoa, 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, Wilkinson, MS, Amite, MS, Pike, MS, Walthall, MS, Pearl River, MS, Northern Hancock, MS, Northern Harrison, MS, Northern Jackson, MS 7:00 PM

Walthall County, Mississippi, United States

Last updated: 5:17 PM CDT  ·  Refresh
33°C
Feels like 41°
Partly Cloudy
▲ 36°  /  ▼ 23°
Wind
6 mph WSW
Humidity
64%
Dew Point
23°
Pressure
29.54 inHg
Visibility
10 mi
UV Index
5.5
Cloud Cover
55%
Sunrise
6:15 AM
Sunset
7:57 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Walthall County is currently partly cloudy at 33°C. Precipitation is likely — peak probability 54% around 6 PM. Atmospheric instability is elevated (CAPE up to 2210 J/kg) — isolated convective development possible. Sunrise: 6:15AM · Sunset: 7:57PM.

Alerts

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, Northern Tangipahoa, 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, Wilkinson, MS, Amite, MS, Pike, MS, Walthall, MS, Pearl River, MS, Northern Hancock, MS, Northern Harrison, MS, Northern 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, Northern Tangipahoa, 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, Wilkinson, MS, Amite, MS, Pike, MS, Walthall, MS, Pearl River, MS, Northern Hancock, MS, Northern Harrison, MS, Northern Jackson, MS
Expires 7:00 PM
51 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
33°
32%
6 PM
31°
54%
7 PM
31°
30%
8 PM
29°
30%
9 PM
28°
28%
10 PM
27°
28%
11 PM
27°
28%
12 AM
26°
20%
1 AM
27°
8%
2 AM
26°
13%
3 AM
26°
13%
4 AM
26°
22%
5 AM
24°
22%
6 AM
23°
23%
7 AM
24°
26%
8 AM
26°
31%
9 AM
29°
42%
10 AM
30°
32%
11 AM
31°
36%
12 PM
32°
45%
1 PM
33°
47%
2 PM
33°
51%
3 PM
33°
48%
4 PM
33°
32%
7-Day Forecast
Today
36° 23°
Partly Cloudy with a 32% chance of rain.
Thu
37° 23°
Partly Cloudy with a 42% chance of rain.
Fri
34° 24°
Partly Cloudy with a 64% chance of rain.
Sat
33° 24°
Partly Cloudy with a 55% chance of rain.
Sun
33° 23°
Overcast with a 41% chance of rain.
Mon
35° 21°
Drizzle, 55% chance.
Tue
36° 22°
Mostly Clear with a 31% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 33° Partly Cloudy 32% 6 mph WSW 64%
6 PM 31° Mostly Cloudy 54% 6 mph WSW 66%
7 PM 31° Overcast 30% 5 mph WSW 68%
8 PM 29° Overcast 30% 4 mph W 69%
9 PM 28° Overcast 28% 4 mph W 71%
10 PM 27° Mostly Cloudy 28% 4 mph W 72%
11 PM 27° Mostly Cloudy 28% 4 mph W 73%
12 AM 26° Mostly Cloudy 20% 3 mph W 74%
1 AM 27° Mostly Cloudy 8% 3 mph W 75%
2 AM 26° Partly Cloudy 13% 3 mph WSW 77%
3 AM 26° Partly Cloudy 13% 3 mph WSW 79%
4 AM 26° Partly Cloudy 22% 4 mph WSW 81%
5 AM 24° Partly Cloudy 22% 4 mph WSW 84%
6 AM 23° Partly Cloudy 23% 4 mph WSW 86%
7 AM 24° Partly Cloudy 26% 5 mph W 86%
8 AM 26° Partly Cloudy 31% 6 mph W 82%
9 AM 29° Partly Cloudy 42% 7 mph W 78%
10 AM 30° Partly Cloudy 32% 7 mph W 73%
11 AM 31° Partly Cloudy 36% 7 mph WNW 70%
12 PM 32° Partly Cloudy 45% 7 mph WNW 68%
1 PM 33° Partly Cloudy 47% 7 mph WNW 67%
2 PM 33° Partly Cloudy 51% 6 mph W 66%
3 PM 33° Partly Cloudy 48% 6 mph W 65%
4 PM 33° Mostly Cloudy 32% 6 mph W 65%
15-Day Forecast
Today
7/29
Partly Cloudy
32%
23°
36°
Thu
7/30
Partly Cloudy
42%
23°
37°
Fri
7/31
Partly Cloudy
64%
24°
34°
Sat
8/1
Partly Cloudy
55%
24°
33°
Sun
8/2
Overcast
41%
23°
33°
Mon
8/3
Drizzle
55%
21°
35°
Tue
8/4
Mostly Clear
31%
22°
36°
Wed
8/5
Drizzle
60%
23°
37°
Thu
8/6
Drizzle
50%
23°
37°
Fri
8/7
Drizzle
67%
23°
37°
Sat
8/8
Drizzle
60%
23°
37°
Sun
8/9
Drizzle
60%
23°
37°
Mon
8/10
Drizzle
60%
23°
38°
Tue
8/11
Drizzle
60%
23°
37°
Wed
8/12
Drizzle
60%
23°
37°
51
Moderate
U.S. Air Quality Index · Dominant: PM2.5
50 100 150 200

Air quality is acceptable. Unusually sensitive people should consider limiting prolonged outdoor exertion.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
Dominant
51 AQI 9.3 µg/m³
O3
Ground-level ozone
30 AQI 33 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Thu 51 Moderate 30 51
Fri 54 Moderate 28 54
Sat 53 Moderate 29 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 Wed Jul 29, 21:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE2122 J/kg
MLCAPE1548 J/kg
MUCAPE2122 J/kg
SBCIN-74 J/kg
MLCIN0 J/kg
Lifted Index-5.2
Kinematics
0–6 km Shear11 kt
0–1 km Shear2 kt
Eff. Shear11 kt
0–1 km SRH6
0–3 km SRH-30
Eff. SRH-30
Storm Motion281° @ 19 kt
0–1 km EHI0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index31.0
Thermo & Levels
PWAT2.00 in
0–3 km LR7.5 °C/km
700–500 LR5.3 °C/km
Total Totals46.0
LCL867 hPa
LFC811 hPa
EL140 hPa
Freezing Lvl16,529 ft