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, Lower Plaquemines, 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, Lower Plaquemines, 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

Walthall County, Mississippi, United States

Last updated: 4:58 PM CDT  ·  Refresh
34°C
Feels like 37°
Clear
▲ 36°  /  ▼ 23°
Wind
6 mph WSW
Humidity
45%
Dew Point
21°
Pressure
29.65 inHg
Visibility
10 mi
UV Index
6.8
Cloud Cover
9%
Sunrise
6:13 AM
Sunset
7:59 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Walthall County is currently clear at 34°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1871 J/kg) — isolated convective development possible. Sunrise: 6:13AM · Sunset: 7:59PM.

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, Lower Plaquemines, 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, Lower Plaquemines, 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
34 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
34°
3%
5 PM
34°
21%
6 PM
33°
21%
7 PM
31°
21%
8 PM
30°
21%
9 PM
28°
21%
10 PM
27°
15%
11 PM
27°
15%
12 AM
26°
3%
1 AM
26°
3%
2 AM
25°
5%
3 AM
25°
5%
4 AM
24°
5%
5 AM
23°
5%
6 AM
24°
8%
7 AM
26°
9%
8 AM
27°
5%
9 AM
30°
5%
10 AM
31°
7%
11 AM
32°
7%
12 PM
33°
7%
1 PM
34°
14%
2 PM
34°
28%
3 PM
34°
25%
7-Day Forecast
Today
36° 23°
Mostly Clear with a 21% chance of rain.
Mon
35° 23°
Partly Cloudy with a 29% chance of rain.
Tue
37° 24°
Mostly Clear.
Wed
36° 25°
Partly Cloudy with a 64% chance of rain.
Thu
36° 23°
Drizzle, 64% chance.
Fri
35° 23°
Rain, 78% chance.
Sat
34° 23°
Rain, 86% chance.
TimeTempConditionsPrecipWindHumidity
Now 34° Clear 3% 6 mph WSW 45%
5 PM 34° Mostly Clear 21% 6 mph W 48%
6 PM 33° Mostly Clear 21% 5 mph W 54%
7 PM 31° Mostly Clear 21% 5 mph W 58%
8 PM 30° Mostly Clear 21% 5 mph W 61%
9 PM 28° Mostly Clear 21% 5 mph W 64%
10 PM 27° Mostly Clear 15% 4 mph WSW 66%
11 PM 27° Partly Cloudy 15% 4 mph WSW 69%
12 AM 26° Partly Cloudy 3% 5 mph WSW 72%
1 AM 26° Partly Cloudy 3% 5 mph WSW 76%
2 AM 25° Clear 5% 6 mph WSW 81%
3 AM 25° Clear 5% 6 mph W 86%
4 AM 24° Clear 5% 5 mph W 87%
5 AM 23° Partly Cloudy 5% 5 mph W 88%
6 AM 24° Partly Cloudy 8% 5 mph W 89%
7 AM 26° Partly Cloudy 9% 7 mph W 82%
8 AM 27° Partly Cloudy 5% 7 mph W 76%
9 AM 30° Mostly Cloudy 5% 7 mph W 69%
10 AM 31° Partly Cloudy 7% 7 mph W 63%
11 AM 32° Partly Cloudy 7% 6 mph W 59%
12 PM 33° Partly Cloudy 7% 6 mph WNW 55%
1 PM 34° Partly Cloudy 14% 6 mph W 54%
2 PM 34° Partly Cloudy 28% 6 mph W 53%
3 PM 34° Partly Cloudy 25% 6 mph W 52%
15-Day Forecast
Today
7/26
Mostly Clear
21%
23°
36°
Mon
7/27
Partly Cloudy
29%
23°
35°
Tue
7/28
Mostly Clear
11%
24°
37°
Wed
7/29
Partly Cloudy
64%
25°
36°
Thu
7/30
Drizzle
64%
23°
36°
Fri
7/31
Rain
78%
23°
35°
Sat
8/1
Rain
86%
23°
34°
Sun
8/2
Thunderstorm
82%
22°
34°
Mon
8/3
Drizzle
68%
22°
35°
Tue
8/4
Drizzle
60%
23°
36°
Wed
8/5
Drizzle
60%
23°
36°
Thu
8/6
Drizzle
60%
23°
37°
Fri
8/7
Drizzle
60%
23°
37°
Sat
8/8
Drizzle
60%
23°
36°
Sun
8/9
Drizzle
60%
23°
36°
34
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
34 AQI 6.2 µg/m³
O3
Ground-level ozone
21 AQI 23 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Mon 34 Good 21 34
Tue 33 Good 27 33
Wed 43 Good 27 43
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 Sun Jul 26, 20:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE1240 J/kg
MLCAPE385 J/kg
MUCAPE1240 J/kg
SBCIN0 J/kg
MLCIN-0 J/kg
Lifted Index-2.1
Kinematics
0–6 km Shear11 kt
0–1 km Shear5 kt
Eff. Shear16 kt
0–1 km SRH15
0–3 km SRH-3
Eff. SRH-3
Storm Motion307° @ 22 kt
0–1 km EHI0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index-4.8
Thermo & Levels
PWAT1.45 in
0–3 km LR7.4 °C/km
700–500 LR5.5 °C/km
Total Totals40.3
LCL830 hPa
LFC1004 hPa
EL172 hPa
Freezing Lvl17,008 ft