Bay St Louis - Little Bay Weather Forecast

    • 79
    • 87

    Chance Thunderstorms

    • 79
    • 88

    Chance Thunderstorms

    • 77
    • 86

    Rain Showers

    • 76
    • 89

    Thunderstorms Likely

    • 77
    • 89

    Chance Thunderstorms

    • 78
    • 89

    Chance Thunderstorms

Today 25 Aug Southern Harrison

Mostly sunny. A slight chance of Showers and Thunderstorms in the Morning, then a chance of Showers and Thunderstorms in the afternoon. Humid with Highs in the lower 90s. Northwest Winds 5 to 10 Mph, becoming west in the afternoon. Chance of rain 50 percent. Heat index Values up to 106.

Tonight 25 Aug Southern Harrison

Mostly clear. Near steady temperature in the mid 70s. Northwest Winds around 5 Mph.

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Bay St Louis - Little Bay Temperature Statistics

August Temperature

Bay St. Louis, Stennis International Airport (9.9 miles)

  • Lowest 4 August, 2026

    69.8 °F

  • Average August

    87 °F

  • Highest 22 August, 2026

    98.6 °F

Climate (2021–2026)

Bay St. Louis, Stennis International Airport (9.9 miles)

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  • Average Low 2021–2026

    60.4 °F

  • Average 2021–2026

    71.7 °F

  • Average High 2021–2026

    78.5 °F
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