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 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 Excessive Heat Watch 8:00 PM

Walthall County, Mississippi, United States

Last updated: 3:41 PM CDT  ·  Refresh
37°C
Feels like 38°
Clear
▲ 38°  /  ▼ 23°
Wind
4 mph SW
Humidity
33%
Dew Point
18°
Pressure
29.77 inHg
Visibility
10 mi
UV Index
8.3
Cloud Cover
0%
Sunrise
6:25 AM
Sunset
7:43 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Walthall County is currently clear at 37°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2137 J/kg) — isolated convective development possible. Sunrise: 6:25AM · Sunset: 7:43PM.

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, 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
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
Excessive Heat Watch
Expires 8:00 PM
55 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
37°
3%
4 PM
38°
3%
5 PM
38°
3%
6 PM
36°
3%
7 PM
34°
3%
8 PM
32°
3%
9 PM
29°
3%
10 PM
28°
3%
11 PM
28°
3%
12 AM
27°
3%
1 AM
26°
3%
2 AM
26°
3%
3 AM
26°
3%
4 AM
25°
3%
5 AM
23°
3%
6 AM
23°
3%
7 AM
24°
3%
8 AM
26°
3%
9 AM
29°
3%
10 AM
32°
3%
11 AM
33°
3%
12 PM
34°
3%
1 PM
36°
3%
2 PM
36°
3%
7-Day Forecast
Today
38° 23°
Clear.
Sat
39° 23°
Clear.
Sun
41° 24°
Clear.
Mon
40° 25°
Mostly Clear with a 44% chance of rain.
Tue
41° 24°
Drizzle, 60% chance.
Wed
41° 23°
Drizzle, 50% chance.
Thu
41° 22°
Drizzle, 60% chance.
TimeTempConditionsPrecipWindHumidity
Now 37° Clear 3% 4 mph SW 33%
4 PM 38° Clear 3% 4 mph SSW 31%
5 PM 38° Clear 3% 4 mph SSW 34%
6 PM 36° Clear 3% 4 mph SSW 38%
7 PM 34° Clear 3% 4 mph SSW 42%
8 PM 32° Clear 3% 4 mph SW 48%
9 PM 29° Clear 3% 4 mph SW 54%
10 PM 28° Clear 3% 5 mph SSW 59%
11 PM 28° Clear 3% 5 mph SW 64%
12 AM 27° Clear 3% 5 mph SW 71%
1 AM 26° Clear 3% 5 mph SW 78%
2 AM 26° Clear 3% 5 mph WSW 83%
3 AM 26° Clear 3% 5 mph WSW 88%
4 AM 25° Clear 3% 4 mph WSW 91%
5 AM 23° Clear 3% 4 mph W 92%
6 AM 23° Clear 3% 3 mph W 92%
7 AM 24° Clear 3% 4 mph WNW 87%
8 AM 26° Clear 3% 5 mph WNW 78%
9 AM 29° Clear 3% 6 mph WNW 68%
10 AM 32° Clear 3% 5 mph WNW 62%
11 AM 33° Clear 3% 5 mph WNW 58%
12 PM 34° Clear 3% 4 mph WNW 53%
1 PM 36° Clear 3% 4 mph WNW 51%
2 PM 36° Clear 3% 4 mph WNW 51%
15-Day Forecast
Today
8/14
Clear
3%
23°
38°
Sat
8/15
Clear
3%
23°
39°
Sun
8/16
Clear
8%
24°
41°
Mon
8/17
Mostly Clear
44%
25°
40°
Tue
8/18
Drizzle
60%
24°
41°
Wed
8/19
Drizzle
50%
23°
41°
Thu
8/20
Drizzle
60%
22°
41°
Fri
8/21
Drizzle
60%
23°
42°
Sat
8/22
Drizzle
60%
22°
40°
Sun
8/23
Drizzle
60%
21°
41°
Mon
8/24
Drizzle
60%
22°
39°
Tue
8/25
Drizzle
60%
23°
40°
Wed
8/26
Drizzle
60%
23°
41°
Thu
8/27
Drizzle
60%
23°
41°
Fri
8/28
Drizzle
60%
23°
40°
55
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
55 AQI 11.4 µg/m³
O3
Ground-level ozone
23 AQI 26 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Sat 55 Moderate 23 55
Sun 48 Good 26 48
Mon 45 Good 26 45
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 14, 19:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE838 J/kg
MLCAPE193 J/kg
MUCAPE838 J/kg
SBCIN-25 J/kg
MLCIN-120 J/kg
Lifted Index-2.7
Kinematics
0–6 km Shear2 kt
0–1 km Shear0 kt
Eff. Shear3 kt
0–1 km SRH1
0–3 km SRH10
Eff. SRH10
Storm Motion83° @ 11 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index13.1
Thermo & Levels
PWAT1.22 in
0–3 km LR8.3 °C/km
700–500 LR6.0 °C/km
Total Totals44.0
LCL774 hPa
LFC691 hPa
EL199 hPa
Freezing Lvl16,713 ft