Clearwater Harbor - Sand Key Weather Forecast

    • 74
    • 85

    Thunderstorms

    • 74
    • 85

    Thunderstorms

    • 73
    • 86

    Isolated Thunderstorms

    • 73
    • 86

    Isolated Thunderstorms

    • 73
    • 86

    Isolated Thunderstorms

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    • 87

    Isolated Thunderstorms

Today 10 Sep Pinellas

Partly sunny. Isolated Showers and Thunderstorms this Morning, then numerous Showers and Thunderstorms this afternoon. Highs in the upper 80s. Northeast Winds 5 to 10 Mph. Chance of rain 70 percent.

Tonight 10 Sep Pinellas

Mostly cloudy. Numerous Showers and Thunderstorms, mainly in the evening. Humid with Lows in the mid 70s. Northeast Winds 5 to 10 Mph. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Clearwater Harbor - Sand Key Temperature Statistics

September Temperature

Clearwater Air Park (3.7 miles)

  • Lowest 2 September, 2025

    71.6 °F

  • Average September

    80 °F

  • Highest 5 September, 2025

    91.4 °F

Climate (2020–Present)

Clearwater Air Park (3.7 miles)

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  • Average Low 2020–2025

    65.9 °F

  • Average 2020–2025

    72.6 °F

  • Average High 2020–2025

    80.4 °F
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