Excessive Heat Watch 8:00 PM Excessive 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 Extreme Heat Watch 8:00 PM

Walthall County, Mississippi, United States

Last updated: 10:04 PM CDT  ·  Refresh
30°C
Feels like 33°
Clear
▲ 37°  /  ▼ 23°
Wind
5 mph SSW
Humidity
60%
Dew Point
21°
Pressure
29.78 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
8%
Sunrise
6:26 AM
Sunset
7:42 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Walthall County is currently clear at 30°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2366 J/kg) — isolated convective development possible. Sunrise: 6:26AM · Sunset: 7:42PM.

Alerts

Excessive Heat Watch
Expires 8:00 PM
Excessive 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
Extreme Heat Watch
Expires 8:00 PM
45 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
30°
3%
11 PM
28°
14%
12 AM
27°
14%
1 AM
27°
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
27°
3%
9 AM
29°
3%
10 AM
32°
5%
11 AM
34°
5%
12 PM
36°
5%
1 PM
39°
5%
2 PM
39°
23%
3 PM
38°
28%
4 PM
38°
28%
5 PM
37°
28%
6 PM
36°
28%
7 PM
34°
24%
8 PM
34°
24%
9 PM
30°
27%
7-Day Forecast
Tonight
37° 23°
Clear.
Sun
39° 23°
Mostly Clear with a 28% chance of rain.
Mon
42° 24°
Mostly Clear with a 38% chance of rain.
Tue
41° 24°
Clear with a 57% chance of rain.
Wed
41° 23°
Rain, 64% chance.
Thu
41° 23°
Rain, 70% chance.
Fri
41° 23°
Rain, 63% chance.
TimeTempConditionsPrecipWindHumidity
Now 30° Clear 3% 5 mph SSW 60%
11 PM 28° Clear 14% 5 mph SSW 69%
12 AM 27° Clear 14% 6 mph SSW 74%
1 AM 27° Clear 3% 6 mph SSW 79%
2 AM 26° Clear 3% 5 mph SW 84%
3 AM 26° Clear 3% 4 mph SW 88%
4 AM 25° Clear 3% 4 mph SW 92%
5 AM 23° Clear 3% 4 mph WSW 92%
6 AM 23° Clear 3% 4 mph W 92%
7 AM 24° Clear 3% 4 mph W 91%
8 AM 27° Clear 3% 6 mph WNW 81%
9 AM 29° Clear 3% 6 mph WNW 70%
10 AM 32° Clear 5% 6 mph NW 62%
11 AM 34° Clear 5% 5 mph NW 54%
12 PM 36° Mostly Clear 5% 4 mph NW 47%
1 PM 39° Mostly Clear 5% 3 mph NNW 40%
2 PM 39° Mostly Clear 23% 3 mph NW 40%
3 PM 38° Mostly Clear 28% 3 mph WNW 39%
4 PM 38° Mostly Clear 28% 3 mph W 39%
5 PM 37° Partly Cloudy 28% 3 mph WSW 44%
6 PM 36° Partly Cloudy 28% 4 mph WSW 49%
7 PM 34° Partly Cloudy 24% 4 mph SW 54%
8 PM 34° Partly Cloudy 24% 4 mph SW 57%
9 PM 30° Mostly Cloudy 27% 4 mph SW 61%
15-Day Forecast
Today
8/15
Clear
3%
23°
37°
Sun
8/16
Mostly Clear
28%
23°
39°
Mon
8/17
Mostly Clear
38%
24°
42°
Tue
8/18
Clear
57%
24°
41°
Wed
8/19
Rain
64%
23°
41°
Thu
8/20
Rain
70%
23°
41°
Fri
8/21
Rain
63%
23°
41°
Sat
8/22
Rain
79%
22°
37°
Sun
8/23
Rain
68%
21°
39°
Mon
8/24
Drizzle
44%
22°
39°
Tue
8/25
Clear
25%
21°
40°
Wed
8/26
Drizzle
60%
23°
41°
Thu
8/27
Drizzle
60%
23°
40°
Fri
8/28
Drizzle
60%
23°
39°
Sat
8/29
Drizzle
60%
23°
38°
45
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
45 AQI 8.1 µg/m³
O3
Ground-level ozone
27 AQI 30 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 45 Good 27 45
Mon 46 Good 25 46
Tue 51 Moderate 29 51
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 Aug 16, 01:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE459 J/kg
MLCAPE397 J/kg
MUCAPE1025 J/kg
SBCIN-350 J/kg
MLCIN-206 J/kg
Lifted Index-2.2
Kinematics
0–6 km Shear19 kt
0–1 km Shear2 kt
Eff. Shear22 kt
0–1 km SRH6
0–3 km SRH31
Eff. SRH53
Storm Motion86° @ 17 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.6
K-Index12.7
Thermo & Levels
PWAT1.30 in
0–3 km LR5.9 °C/km
700–500 LR6.2 °C/km
Total Totals42.8
LCL883 hPa
LFC608 hPa
EL239 hPa
Freezing Lvl16,640 ft