Excessive Heat Watch 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

Walthall County, Mississippi, United States

Last updated: 10:52 PM CDT  ·  Refresh
26°C
Feels like 29°
Mostly Cloudy
▲ 37°  /  ▼ 23°
Wind
4 mph SSW
Humidity
85%
Dew Point
23°
Pressure
29.74 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
67%
Sunrise
6:27 AM
Sunset
7:41 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Walthall County is currently mostly cloudy at 25°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2187 J/kg) — isolated convective development possible. Sunrise: 6:27AM · Sunset: 7:41PM.

Alerts

Excessive Heat Watch
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
51 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
26°
8%
11 PM
26°
16%
12 AM
25°
9%
1 AM
25°
4%
2 AM
25°
4%
3 AM
24°
4%
4 AM
24°
3%
5 AM
23°
3%
6 AM
23°
3%
7 AM
26°
3%
8 AM
28°
10%
9 AM
31°
10%
10 AM
32°
19%
11 AM
34°
19%
12 PM
36°
22%
1 PM
38°
29%
2 PM
38°
32%
3 PM
37°
39%
4 PM
36°
43%
5 PM
33°
34%
6 PM
32°
35%
7 PM
32°
35%
8 PM
32°
36%
9 PM
30°
32%
7-Day Forecast
Tonight
37° 23°
Mostly Cloudy.
Mon
38° 23°
Partly Cloudy with a 43% chance of rain.
Tue
42° 24°
Mostly Clear with a 62% chance of rain.
Wed
41° 24°
Mostly Clear with a 57% chance of rain.
Thu
41° 23°
Mostly Clear with a 44% chance of rain.
Fri
39° 23°
Rain, 82% chance.
Sat
39° 22°
Rain, 63% chance.
TimeTempConditionsPrecipWindHumidity
Now 26° Mostly Cloudy 8% 4 mph SSW 85%
11 PM 26° Mostly Cloudy 16% 5 mph SSW 82%
12 AM 25° Partly Cloudy 9% 5 mph SW 81%
1 AM 25° Partly Cloudy 4% 5 mph SW 83%
2 AM 25° Partly Cloudy 4% 4 mph SW 86%
3 AM 24° Partly Cloudy 4% 4 mph WSW 90%
4 AM 24° Mostly Clear 3% 4 mph WSW 92%
5 AM 23° Mostly Clear 3% 4 mph WSW 93%
6 AM 23° Mostly Clear 3% 4 mph WSW 94%
7 AM 26° Clear 3% 6 mph W 86%
8 AM 28° Clear 10% 6 mph WNW 76%
9 AM 31° Mostly Clear 10% 6 mph WNW 65%
10 AM 32° Partly Cloudy 19% 6 mph WNW 58%
11 AM 34° Mostly Clear 19% 6 mph WNW 51%
12 PM 36° Clear 22% 5 mph WNW 45%
1 PM 38° Mostly Clear 29% 5 mph W 44%
2 PM 38° Partly Cloudy 32% 5 mph W 45%
3 PM 37° Mostly Cloudy 39% 6 mph WSW 46%
4 PM 36° Mostly Cloudy 43% 6 mph WSW 53%
5 PM 33° Partly Cloudy 34% 6 mph SW 60%
6 PM 32° Partly Cloudy 35% 6 mph SW 66%
7 PM 32° Partly Cloudy 35% 6 mph SW 66%
8 PM 32° Partly Cloudy 36% 7 mph SW 66%
9 PM 30° Mostly Cloudy 32% 7 mph SW 66%
15-Day Forecast
Today
8/16
Mostly Cloudy
8%
23°
37°
Mon
8/17
Partly Cloudy
43%
23°
38°
Tue
8/18
Mostly Clear
62%
24°
42°
Wed
8/19
Mostly Clear
57%
24°
41°
Thu
8/20
Mostly Clear
44%
23°
41°
Fri
8/21
Rain
82%
23°
39°
Sat
8/22
Rain
63%
22°
39°
Sun
8/23
Thunderstorm
28%
21°
40°
Mon
8/24
Thunderstorm
44%
23°
41°
Tue
8/25
Rain
68%
23°
39°
Wed
8/26
Drizzle
51%
23°
39°
Thu
8/27
Drizzle
60%
23°
41°
Fri
8/28
Drizzle
60%
23°
41°
Sat
8/29
Drizzle
60%
22°
39°
Sun
8/30
Drizzle
60%
22°
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 9.1 µg/m³
O3
Ground-level ozone
26 AQI 28 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 51 Moderate 26 51
Tue 51 Moderate 28 51
Wed 51 Moderate 28 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 Mon Aug 17, 02:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE737 J/kg
MLCAPE737 J/kg
MUCAPE952 J/kg
SBCIN-286 J/kg
MLCIN-193 J/kg
Lifted Index-1.9
Kinematics
0–6 km Shear8 kt
0–1 km Shear10 kt
Eff. Shear11 kt
0–1 km SRH32
0–3 km SRH105
Eff. SRH125
Storm Motion97° @ 16 kt
0–1 km EHI0.2
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index30.2
Thermo & Levels
PWAT1.97 in
0–3 km LR4.7 °C/km
700–500 LR5.4 °C/km
Total Totals44.7
LCL974 hPa
LFC733 hPa
EL178 hPa
Freezing Lvl16,516 ft