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: 2:12 PM CDT  ·  Refresh
33°C
Feels like 40°
Mostly Cloudy
▲ 36°  /  ▼ 23°
Wind
6 mph W
Humidity
60%
Dew Point
24°
Pressure
29.57 inHg
Visibility
10 mi
UV Index
6.1
Cloud Cover
78%
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 mostly cloudy at 33°C. Precipitation is likely — peak probability 58% around 2 PM. Atmospheric instability is elevated (CAPE up to 1873 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°
44%
3 PM
33°
34%
4 PM
33°
42%
5 PM
32°
41%
6 PM
32°
16%
7 PM
31°
22%
8 PM
30°
21%
9 PM
28°
21%
10 PM
27°
8%
11 PM
27°
8%
12 AM
26°
8%
1 AM
27°
12%
2 AM
26°
15%
3 AM
26°
15%
4 AM
26°
25%
5 AM
23°
25%
6 AM
23°
26%
7 AM
24°
30%
8 AM
25°
35%
9 AM
29°
35%
10 AM
30°
36%
11 AM
30°
40%
12 PM
30°
50%
1 PM
33°
57%
7-Day Forecast
Today
36° 23°
Mostly Cloudy with a 44% chance of rain.
Thu
37° 23°
Partly Cloudy with a 57% chance of rain.
Fri
33° 24°
Partly Cloudy with a 68% chance of rain.
Sat
34° 24°
Mostly Cloudy with a 55% chance of rain.
Sun
33° 22°
Clear with a 60% chance of rain.
Mon
34° 20°
Drizzle, 60% chance.
Tue
36° 21°
Clear with a 35% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 33° Mostly Cloudy 44% 6 mph W 60%
3 PM 33° Overcast 34% 6 mph WSW 67%
4 PM 33° Overcast 42% 7 mph WSW 68%
5 PM 32° Overcast 41% 7 mph W 66%
6 PM 32° Mostly Cloudy 16% 6 mph W 65%
7 PM 31° Mostly Cloudy 22% 5 mph WSW 67%
8 PM 30° Mostly Cloudy 21% 4 mph W 69%
9 PM 28° Overcast 21% 4 mph W 70%
10 PM 27° Overcast 8% 4 mph W 71%
11 PM 27° Overcast 8% 3 mph W 72%
12 AM 26° Overcast 8% 3 mph WSW 73%
1 AM 27° Mostly Cloudy 12% 3 mph WSW 75%
2 AM 26° Partly Cloudy 15% 3 mph WSW 76%
3 AM 26° Partly Cloudy 15% 4 mph WSW 78%
4 AM 26° Mostly Cloudy 25% 4 mph WSW 80%
5 AM 23° Partly Cloudy 25% 4 mph WSW 84%
6 AM 23° Partly Cloudy 26% 4 mph WSW 86%
7 AM 24° Partly Cloudy 30% 4 mph W 86%
8 AM 25° Partly Cloudy 35% 5 mph W 81%
9 AM 29° Partly Cloudy 35% 6 mph W 76%
10 AM 30° Partly Cloudy 36% 6 mph W 71%
11 AM 30° Partly Cloudy 40% 6 mph WNW 71%
12 PM 30° Partly Cloudy 50% 6 mph WNW 71%
1 PM 33° Partly Cloudy 57% 8 mph NW 70%
15-Day Forecast
Today
7/29
Mostly Cloudy
44%
23°
36°
Thu
7/30
Partly Cloudy
57%
23°
37°
Fri
7/31
Partly Cloudy
68%
24°
33°
Sat
8/1
Mostly Cloudy
55%
24°
34°
Sun
8/2
Clear
60%
22°
33°
Mon
8/3
Drizzle
60%
20°
34°
Tue
8/4
Clear
35%
21°
36°
Wed
8/5
Drizzle
60%
22°
36°
Thu
8/6
Drizzle
60%
23°
36°
Fri
8/7
Drizzle
60%
23°
36°
Sat
8/8
Drizzle
60%
23°
36°
Sun
8/9
Drizzle
60%
23°
37°
Mon
8/10
Drizzle
60%
23°
37°
Tue
8/11
Drizzle
60%
23°
37°
Wed
8/12
Drizzle
60%
23°
38°
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, 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
SBCAPE2559 J/kg
MLCAPE2012 J/kg
MUCAPE2559 J/kg
SBCIN0 J/kg
MLCIN-0 J/kg
Lifted Index-5.4
Kinematics
0–6 km Shear12 kt
0–1 km Shear2 kt
Eff. Shear12 kt
0–1 km SRH5
0–3 km SRH-1
Eff. SRH-1
Storm Motion311° @ 17 kt
0–1 km EHI0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index33.4
Thermo & Levels
PWAT2.12 in
0–3 km LR7.7 °C/km
700–500 LR4.9 °C/km
Total Totals44.6
LCL872 hPa
LFC1001 hPa
EL130 hPa
Freezing Lvl16,713 ft