Bay St Louis - Little Bay Weather Forecast

    • 81
    • 88

    Chance Thunderstorms

    • 78
    • 88

    Thunderstorms

    • 76
    • 83

    Thunderstorms

    • 76
    • 87

    Thunderstorms Likely

    • 77
    • 89

    Chance Thunderstorms

    • 78
    • 91

    Chance Thunderstorms

Today 11 Jul 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. South Winds 5 to 10 Mph. Chance of rain 30 percent. Heat index Values up to 106.

Tonight 11 Jul Southern Harrison

Mostly clear with a slight chance of Showers and Thunderstorms. Humid with Lows in the upper 70s. Southwest Winds 5 to 10 Mph. Chance of rain 20 percent.

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Bay St Louis - Little Bay Temperature Statistics

July Temperature

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

  • Lowest 6 July, 2026

    71.6 °F

  • Average July

    86.1 °F

  • Highest 1 July, 2026

    95 °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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