Grand Bay Weather Forecast

    • 72
    • 93

    Slight Chance Thunderstorms

    • 71
    • 94

    Mostly Sunny

    • 69
    • 92

    Mostly Sunny

    • 69
    • 90

    Partly Sunny

    • 69
    • 90

    Partly Sunny

    • 68
    • 90

    Partly Sunny

Today 22 Sep Mobile Coastal

Mostly sunny. Highs in the lower 90s. North Winds around 5 Mph, becoming east around 5 Mph this afternoon.

Tonight 22 Sep Mobile Coastal

Mostly clear. Lows in the mid 70s. South Winds around 5 Mph, becoming north after midnight.

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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

    81.8 °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

    58.8 °F

  • Average 2021–2026

    69.6 °F

  • Average High 2021–2026

    80.9 °F
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