Grand Bay Weather Forecast

    • 74
    • 93

    Chance Rain Showers

    • 74
    • 90

    Rain Showers Likely

    • 73
    • 90

    Rain Showers Likely

    • 73
    • 91

    Chance Thunderstorms

    • 74
    • 91

    Chance Thunderstorms

    • 74
    • 91

    Chance Thunderstorms

Today 7 Sep Mobile Coastal

Mostly sunny. A chance of Showers with a slight chance of Thunderstorms in the afternoon. Humid with Highs in the lower 90s. Northwest Winds around 5 Mph, becoming south around 5 Mph in the afternoon. Chance of rain 40 percent. Heat index Values up to 106.

Tonight 7 Sep Mobile Coastal

Partly cloudy with a chance of Showers with a slight chance of Thunderstorms. Humid with Lows in the mid 70s. South Winds around 5 Mph, becoming east after midnight. Chance of rain 50 percent.

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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 3 September, 2026

    72.6 °F

  • Average September

    81.5 °F

  • Highest 3 September, 2026

    93.7 °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

    80.8 °F
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