Grand Bay Weather Forecast

    • 66
    • 84

    Mostly Sunny

    • 67
    • 88

    Partly Sunny

    • 67
    • 90

    Mostly Sunny

    • 69
    • 90

    Mostly Sunny

    • 71
    • 90

    Mostly Sunny

    • 72
    • 89

    Chance Thunderstorms

Today 25 Sep Mobile Coastal

Mostly sunny. Highs in the mid 80s. Northeast Winds 10 to 15 Mph.

Tonight 25 Sep Mobile Coastal

Mostly clear. Lows around 70. Northeast Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grand Bay Temperature Statistics

September Temperature

Moss Point - Trent Lott International Airport (11.2 miles)

  • Lowest 18 September, 2026

    65.6 °F

  • Average September

    81.7 °F

  • Highest 14 September, 2026

    95.6 °F

Climate (2021–2026)

Moss Point - Trent Lott International Airport (11.2 miles)

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  • Average Low 2021–2026

    58.9 °F

  • Average 2021–2026

    69.7 °F

  • Average High 2021–2026

    80.9 °F
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