Grand Harbor Weather Forecast

    • 76
    • 91

    Slight Chance Thunderstorms

    • 76
    • 90

    Chance Thunderstorms

    • 77
    • 90

    Rain Showers Likely

    • 77
    • 89

    Thunderstorms Likely

    • 78
    • 89

    Chance Thunderstorms

    • 77
    • 89

    Chance Thunderstorms

    • 77
    • 90

    Chance Thunderstorms

Today 7 Sep Coastal Bay

Mostly sunny. A slight chance of Showers and Thunderstorms late this Morning, then a chance of Showers and Thunderstorms this afternoon. Highs in the lower 90s. North Winds around 5 Mph, becoming southeast around 5 Mph this afternoon. Chance of rain 50 percent. Heat index Values up to 107.

Tonight 7 Sep Coastal Bay

Partly cloudy. A chance of Showers and Thunderstorms this evening. Lows in the mid 70s. Southeast Winds around 5 Mph, becoming northeast after midnight. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grand Harbor Temperature Statistics

September Temperature

Tyndall Air Force Base (11.8 miles)

  • Lowest 1 September, 2026

    77.2 °F

  • Average September

    82.9 °F

  • Highest 1 September, 2026

    93.2 °F

Climate (2021–2026)

Tyndall Air Force Base (11.8 miles)

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  • Average Low 2021–2026

    62.8 °F

  • Average 2021–2026

    70.3 °F

  • Average High 2021–2026

    78.1 °F
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