Back Bay of Biloxi - Big Island Weather Forecast

    • 76
    • 91

    Chance Thunderstorms

    • 76
    • 93

    Chance Thunderstorms

    • 76
    • 90

    Rain Showers Likely

    • 75
    • 89

    Rain Showers Likely

    • 75
    • 90

    Thunderstorms Likely

    • 75
    • 90

    Chance Thunderstorms

    • 76
    • 90

    Chance Thunderstorms

Today 6 Sep Southern Harrison

Sunny with a slight chance of Showers and Thunderstorms. Near steady temperature in the upper 80s. Southwest Winds 5 to 10 Mph. Chance of rain 20 percent. Heat index Values up to 105.

Tonight 6 Sep Southern Harrison

Mostly clear this Evening, then becoming partly cloudy. A slight chance of Showers and Thunderstorms. Lows in the mid 70s. West Winds around 5 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Back Bay of Biloxi - Big Island Temperature Statistics

September Temperature

Keesler Air Force Base / Biloxi (1.9 miles)

  • Lowest 4 September, 2026

    77.5 °F

  • Average September

    84.1 °F

  • Highest 3 September, 2026

    92.7 °F

Climate (2021–2026)

Keesler Air Force Base / Biloxi (1.9 miles)

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  • Average Low 2021–2026

    62.8 °F

  • Average 2021–2026

    70.2 °F

  • Average High 2021–2026

    77.8 °F
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