Extreme Heat Warning — St. James, LA, St. John The Baptist, LA, Upper St. Bernard, 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 Jefferson, LA, Upper St. Charles, LA, Central St. Charles, LA, Lower St. Charles, LA, Northern Hancock, MS, Northern Harrison, MS, Northern Jackson, MS, Southern Hancock, MS, Southern Harrison, MS, Southern Jackson, MS 8:00 PM Extreme Heat Warning — St. James, LA, St. John The Baptist, LA, Upper St. Bernard, 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 Jefferson, LA, Upper St. Charles, LA, Central St. Charles, LA, Lower St. Charles, LA, Northern Hancock, MS, Northern Harrison, MS, Northern Jackson, MS, Southern Hancock, MS, Southern Harrison, MS, Southern Jackson, MS 8:00 PM

Biloxi, Mississippi

Last updated: 6:32 PM CDT  ·  Refresh
30°C
Feels like 37°
Partly Cloudy
▲ 32°  /  ▼ 27°
Wind
8 mph SSW
Humidity
78%
Dew Point
25°
Pressure
30.00 inHg
Visibility
10 mi
UV Index
2.7
Cloud Cover
60%
Sunrise
6:24 AM
Sunset
7:35 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Biloxi is currently partly cloudy at 30°C. Precipitation is likely — peak probability 66% around 6 PM. Atmospheric instability is elevated (CAPE up to 3400 J/kg) — isolated convective development possible. Sunrise: 6:24AM · Sunset: 7:35PM.

Alerts

Extreme Heat Warning
St. James, LA, St. John The Baptist, LA, Upper St. Bernard, 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 Jefferson, LA, Upper St. Charles, LA, Central St. Charles, LA, Lower St. Charles, LA, 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
St. James, LA, St. John The Baptist, LA, Upper St. Bernard, 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 Jefferson, LA, Upper St. Charles, LA, Central St. Charles, LA, Lower St. Charles, LA, Northern Hancock, MS, Northern Harrison, MS, Northern Jackson, MS, Southern Hancock, MS, Southern Harrison, MS, Southern Jackson, MS
Expires 8:00 PM
54 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
30°
44%
7 PM
29°
54%
8 PM
30°
39%
9 PM
30°
39%
10 PM
29°
28%
11 PM
29°
25%
12 AM
29°
30%
1 AM
28°
14%
2 AM
28°
15%
3 AM
28°
11%
4 AM
28°
11%
5 AM
27°
15%
6 AM
27°
14%
7 AM
28°
19%
8 AM
28°
31%
9 AM
30°
31%
10 AM
31°
44%
11 AM
32°
49%
12 PM
33°
41%
1 PM
34°
41%
2 PM
34°
49%
3 PM
34°
50%
4 PM
34°
52%
5 PM
33°
60%
7-Day Forecast
Tonight
32° 27°
Partly Cloudy with a 44% chance of rain.
Tue
36° 27°
Rain, 66% chance.
Wed
36° 27°
Mostly Cloudy with a 72% chance of rain.
Thu
35° 27°
Mostly Cloudy with a 72% chance of rain.
Fri
35° 26°
Thunderstorm, 77% chance.
Sat
34° 26°
Thunderstorm, 70% chance.
Sun
35° 26°
Mostly Clear with a 32% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 30° Partly Cloudy 44% 8 mph SSW 78%
7 PM 29° Overcast 54% 6 mph SSE 81%
8 PM 30° Mostly Cloudy 39% 7 mph SSW 80%
9 PM 30° Mostly Cloudy 39% 10 mph SSW 80%
10 PM 29° Mostly Cloudy 28% 11 mph SW 80%
11 PM 29° Mostly Cloudy 25% 10 mph SW 80%
12 AM 29° Mostly Cloudy 30% 10 mph WSW 80%
1 AM 28° Mostly Cloudy 14% 9 mph WSW 81%
2 AM 28° Mostly Cloudy 15% 9 mph W 82%
3 AM 28° Mostly Cloudy 11% 9 mph W 82%
4 AM 28° Mostly Cloudy 11% 9 mph W 82%
5 AM 27° Mostly Cloudy 15% 9 mph W 83%
6 AM 27° Mostly Cloudy 14% 9 mph WNW 83%
7 AM 28° Mostly Cloudy 19% 9 mph WNW 81%
8 AM 28° Mostly Cloudy 31% 9 mph WNW 77%
9 AM 30° Mostly Cloudy 31% 8 mph WNW 72%
10 AM 31° Mostly Cloudy 44% 8 mph WNW 69%
11 AM 32° Mostly Cloudy 49% 7 mph W 67%
12 PM 33° Partly Cloudy 41% 7 mph WSW 64%
1 PM 34° Partly Cloudy 41% 8 mph WSW 64%
2 PM 34° Mostly Cloudy 49% 8 mph SW 65%
3 PM 34° Rain 50% 9 mph SW 66%
4 PM 34° Rain 52% 9 mph SW 68%
5 PM 33° Rain 60% 9 mph SW 71%
15-Day Forecast
Today
8/17
Partly Cloudy
44%
27°
32°
Tue
8/18
Rain
66%
27°
36°
Wed
8/19
Mostly Cloudy
72%
27°
36°
Thu
8/20
Mostly Cloudy
72%
27°
35°
Fri
8/21
Thunderstorm
77%
26°
35°
Sat
8/22
Thunderstorm
70%
26°
34°
Sun
8/23
Mostly Clear
32%
26°
35°
Mon
8/24
Thunderstorm
46%
26°
34°
Tue
8/25
Drizzle
54%
26°
34°
Wed
8/26
Rain
66%
26°
33°
Thu
8/27
Rain
72%
25°
33°
Fri
8/28
Drizzle
60%
25°
36°
Sat
8/29
Drizzle
60%
24°
35°
Sun
8/30
Drizzle
60%
24°
34°
Mon
8/31
Drizzle
60%
24°
34°
54
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
54 AQI 11.0 µg/m³
O3
Ground-level ozone
36 AQI 40 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Tue 54 Moderate 36 54
Wed 53 Moderate 36 53
Thu 51 Moderate 33 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, 21:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE3400 J/kg
MLCAPE2587 J/kg
MUCAPE3400 J/kg
SBCIN-92 J/kg
MLCIN-55 J/kg
Lifted Index-7.0
Kinematics
0–6 km Shear5 kt
0–1 km Shear6 kt
Eff. Shear11 kt
0–1 km SRH26
0–3 km SRH63
Eff. SRH63
Storm Motion69° @ 12 kt
0–1 km EHI0.6
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index37.6
Thermo & Levels
PWAT2.44 in
0–3 km LR6.3 °C/km
700–500 LR5.6 °C/km
Total Totals50.1
LCL949 hPa
LFC853 hPa
EL125 hPa
Freezing Lvl16,368 ft