Horn Island, MS Weather Forecast and Current Conditions

Day Sky High / Low Precip Wind Humidity
Wed
Jun 24 		Scattered Thunderstorms
Close Hourly 		-º / 72º 49% SW 9 mph 84%
6pm Mostly Cloudy 74º 24% SW 7 mph 93%
7pm Mostly Cloudy 75º 15% SSW 7 mph 91%
8pm Mostly Cloudy 74º 15% SSE 7 mph 91%
9pm Cloudy 81º 15% S 6 mph 79%
10pm Cloudy 82º 15% S 5 mph 79%
11pm Mostly Cloudy 82º 15% SSW 5 mph 80%
Thu
Jun 25 		Isolated Thunderstorms
View Hourly 		85º / 81º 32% WSW 11 mph 79%
12am Scattered Thunderstorms 82º 35% SSW 7 mph 81%
1am Scattered Thunderstorms 82º 48% SW 7 mph 81%
2am Scattered Thunderstorms 82º 50% WSW 6 mph 81%
3am Scattered Thunderstorms 79º 47% WSW 6 mph 85%
4am Isolated Thunderstorms 79º 31% W 7 mph 87%
5am Scattered Thunderstorms 80º 41% W 7 mph 84%
6am Scattered Thunderstorms 80º 38% WNW 7 mph 84%
7am Mostly Cloudy 80º 24% WNW 6 mph 84%
8am Mostly Cloudy 81º 24% W 6 mph 86%
9am Partly Cloudy 81º 21% W 8 mph 82%
10am Mostly Cloudy 82º 12% W 7 mph 84%
11am Mostly Cloudy 83º 13% WSW 8 mph 81%
12pm Scattered Thunderstorms 83º 35% WSW 9 mph 79%
1pm Partly Cloudy 84º 22% WSW 9 mph 76%
2pm Isolated Thunderstorms 84º 31% SW 10 mph 76%
3pm Isolated Thunderstorms 84º 32% SW 10 mph 76%
4pm Partly Cloudy 84º 15% SW 9 mph 75%
5pm Partly Cloudy 84º 18% SW 8 mph 75%
6pm Partly Cloudy 84º 17% SW 7 mph 75%
7pm Partly Cloudy 83º 21% SSW 7 mph 76%
8pm Partly Cloudy 83º 16% SSW 7 mph 79%
9pm Partly Cloudy 83º 15% S 8 mph 80%
10pm Mostly Clear 83º 15% SSW 9 mph 80%
11pm Partly Cloudy 83º 20% SSW 10 mph 81%
Fri
Jun 26 		Partly Cloudy
View Hourly 		86º / 81º 15% SW 12 mph 76%
12am Partly Cloudy 83º 10% SSW 10 mph 81%
1am Partly Cloudy 83º 13% SW 11 mph 82%
2am Partly Cloudy 83º 13% SW 11 mph 81%
3am Partly Cloudy 82º 8% SW 11 mph 82%
4am Partly Cloudy 82º 18% SW 11 mph 82%
5am Partly Cloudy 82º 12% WSW 11 mph 81%
6am Partly Cloudy 82º 15% WSW 9 mph 82%
7am Partly Cloudy 82º 6% WSW 8 mph 81%
8am Partly Cloudy 83º 8% WSW 9 mph 79%
9am Partly Cloudy 84º 8% SW 9 mph 79%
10am Partly Cloudy 84º 5% SW 9 mph 77%
11am Partly Cloudy 84º 15% SW 9 mph 77%
12pm Partly Cloudy 85º 15% SW 10 mph 74%
1pm Partly Cloudy 85º 15% SW 10 mph 74%
2pm Partly Cloudy 86º 15% SSW 10 mph 74%
3pm Partly Cloudy 86º 15% SSW 10 mph 74%
4pm Partly Cloudy 86º 15% SSW 11 mph 74%
5pm Partly Cloudy 86º 15% SSW 11 mph 74%
Sat
Jun 27 		Partly Cloudy 87º / 81º 19% SW 12 mph 74%
Sun
Jun 28 		Sunny 87º / 81º 11% SW 10 mph 73%
Mon
Jun 29 		Mostly Sunny 88º / 81º 6% WSW 8 mph 73%
Tue
Jun 30 		PM Thunderstorms 88º / 80º 41% WSW 8 mph 73%
Wed
Jul 1 		AM Thunderstorms 87º / 80º 40% E 10 mph 76%

Weather Radar for Horn Island, MS See Radar

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* Playback displays weather for the past 6 hours.

NOAA Weather Marine Forecast for Horn Island, MS

Late Afternoon
High : 85ºF
Variable winds 5 kt or less. A chance of showers and thunderstorms. Seas 1 ft or less.
Tonight
Low : 79ºF
SE wind 5 to 10 kt becoming NNE in the evening. A chance of showers and thunderstorms before 3am, then showers likely and possibly a thunderstorm between 3am and 4am, then a chance of showers and thunderstorms after 4am. Seas 1 to 2 ft.
Thursday
High : 85ºF
W wind 5 to 10 kt becoming SSW in the afternoon. A chance of showers and thunderstorms, mainly between 1pm and 5pm. Seas 1 to 2 ft.
Thursday Night
Low : 81ºF
SW wind around 10 kt. A chance of showers and thunderstorms, mainly before 1am. Seas around 2 ft.
Friday
High : 85ºF
SSW wind around 10 kt. Sunny. Seas around 2 ft.
Friday Night
Low : 82ºF
S wind around 10 kt. Mostly clear. Seas around 2 ft.
Saturday
High : 86ºF
SSW wind 5 to 10 kt. Sunny. Seas 1 to 2 ft.
Saturday Night
Low : 81ºF
S wind around 10 kt. Clear. Seas 1 to 2 ft.
Sunday
High : 86ºF
WSW wind 5 to 10 kt becoming SSW in the afternoon. Sunny. Seas 1 ft or less.

NOAA Buoy Data Near Horn Island, MS See Map

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    Wind Speed Forecast for Horn Island, MS

    WednesdayThursdayFriday
    Wind Speed (MPH) 756771079119910
    11pm3am7am11am3pm7pm11pm3am7am11am3pm7pm
    MPH 756771079119910
    DIR SWSWSWWNWWSWSWSSWSWWSWSWSSW

    Current Weather Conditions In Horn Island, MS

    As Of: 7 minutes ago

    • 74ºF
    • 74ºF
    • 7mph
    • 0º (SW)
    • 7mph
    • Mostly Cloudy
    • 9mi
    • 30.01"
    • 93%
    • 0ºF

    The weather right now in Horn Island, MS is Mostly Cloudy. The current temperature is 74°F, and the expected high and low for today, Wednesday, June 24, 2026, are -° high temperature and 72°F low temperature. The wind is currently blowing at 7 miles per hour, and coming from the Southwest. The wind is gusting to 7 mph. With the wind and the atmosphere the temperature feels like 74° Fahrenheit. Expected precipitation is 24 percent, with current humidity at 93 percent, and air pressure at 30.01 in. Visibility is 9 nautical miles. There are 2 current weather alert(s).

    Weather Alerts
    River Flood Warning - 10:08am Wed Jun 24 2026

    ...FLOOD WARNING NOW IN EFFECT UNTIL LATE SUNDAY NIGHT...

    WHAT: Minor flooding is occurring and minor flooding is forecast.

    WHERE: Pascagoula at Merrill.

    WHEN: Until late Sunday night.

    IMPACTS: At 23.5 feet, water is under homes in Plum Bluff Estates.
    Streets of Merrill flood. At 24.0 feet, streets of Merrill will
    become flooded. At 24 feet the bridge becomes inaccessible by
    vehicles.

    ADDITIONAL DETAILS: - At 9:15 AM CDT Wednesday the stage was 24.2 feet.
    - Recent Activity...The maximum river stage in the 24 hours ending
    at 9:15 AM CDT Wednesday was 24.3 feet.
    - Forecast...The river is expected to rise to a crest of 24.2 feet
    this afternoon. It will then fall below flood stage Sunday
    evening.
    - Flood stage is 22.0 feet.
    - http://www.weather.gov/safety/flood

    &&

    River Flood Warning - 8:42am Wed Jun 24 2026

    ...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE...

    WHAT: Minor flooding is occurring and minor flooding is forecast.

    WHERE: Pascagoula River at Graham Ferry.

    WHEN: Until further notice.

    IMPACTS: At 16.0 feet, River property at Cumbest Bluff will be cut
    off by high water and some river roads will be impassable.

    ADDITIONAL DETAILS: - At 7:45 AM CDT Wednesday the stage was 16.9 feet.
    - Bankfull stage is 15.0 feet.
    - Recent Activity...The maximum river stage in the 24 hours ending
    at 7:45 AM CDT Wednesday was 17.0 feet.
    - Forecast...The river is expected to rise to a crest of 17.5 feet
    early Friday morning.
    - Flood stage is 16.0 feet.
    - Flood History...This crest compares to a previous crest of 17.5
    feet on 09/05/2012.
    - http://www.weather.gov/safety/flood

    &&