Thompson Island Weather Forecast

    • 63
    • 68

    Rain Showers

    • 64
    • 73

    Mostly Cloudy

    • 63
    • 74

    Slight Chance Rain Showers

    • 62
    • 74

    Partly Sunny

    • 61
    • 72

    Partly Sunny

    • 59
    • 69

    Slight Chance Rain Showers

Today 8 Aug Knox

Cloudy Early, then becoming partly sunny. Patchy fog early. Isolated Showers and Thunderstorms early. Numerous Showers and scattered Thunderstorms this Morning, then scattered Showers and Thunderstorms this afternoon. Some Thunderstorms may produce heavy rainfall this afternoon. Humid with Highs around 80. Light and variable Winds. Chance of rain 70 percent.

Tonight 8 Aug Knox

Partly cloudy. Scattered Showers and Thunderstorms in the evening. Some Thunderstorms may produce heavy rainfall in the evening. Humid with Lows in the mid 60s. Light and variable Winds. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Thompson Island Temperature Statistics

August Temperature

Rockland, Knox County Regional Airport (15.5 miles)

  • Lowest 1 August, 2026

    55.9 °F

  • Average August

    69.4 °F

  • Highest 6 August, 2026

    86 °F

Climate (2021–2026)

Rockland, Knox County Regional Airport (15.5 miles)

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  • Average Low 2021–2026

    39.5 °F

  • Average 2021–2026

    47.6 °F

  • Average High 2021–2026

    54.8 °F
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