Cat Island Weather Forecast

    • 76
    • 82

    Chance Rain Showers

    • 71
    • 78

    Rain Showers

    • 73
    • 77

    Chance Rain Showers

    • 74
    • 80

    Mostly Sunny

    • 75
    • 81

    Mostly Sunny

    • 75
    • 81

    Mostly Sunny

Today 8 Oct Southern Harrison

Partly sunny. Highs in the mid 80s. Northeast Winds 10 to 15 Mph with Gusts up to 20 Mph.

Tonight 8 Oct Southern Harrison

Mostly cloudy. A slight chance of Showers after midnight. Lows in the upper 60s. East Winds 10 to 15 Mph with Gusts up to 20 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Cat Island Temperature Statistics

October Temperature

Gulfport - Gulfport-Biloxi International Airport (12.4 miles)

  • Lowest 6 October, 2026

    71.1 °F

  • Average October

    79.7 °F

  • Highest 1 October, 2026

    90.6 °F

Climate (2021–2026)

Gulfport - Gulfport-Biloxi International Airport (12.4 miles)

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  • Average Low 2021–2026

    61.7 °F

  • Average 2021–2026

    70.5 °F

  • Average High 2021–2026

    79.7 °F
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