Curtis Island Weather Forecast

    • 48
    • 61

    Decreasing Clouds

    • 63
    • 79

    Chance Rain Showers

    • 49
    • 79

    Chance Rain Showers

    • 44
    • 62

    Mostly Sunny

    • 45
    • 62

    Mostly Cloudy

    • 45
    • 58

    Chance Rain Showers

Today 18 May Knox

Mostly cloudy late this Morning, then becoming partly sunny. A 20 percent chance of Showers. Highs in the mid 60s. Light and variable Winds, becoming south around 10 Mph this afternoon.

Tonight 18 May Knox

Mostly clear in the Evening, then becoming partly cloudy. Patchy fog after midnight. Lows in the upper 40s. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Curtis Island Temperature Statistics

May Temperature

Rockland, Knox County Regional Airport (9.3 miles)

  • Lowest 4 May, 2026

    32 °F

  • Average May

    49.8 °F

  • Highest 16 May, 2026

    66.9 °F

Climate (2021–Present)

Rockland, Knox County Regional Airport (9.3 miles)

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  • Average Low 2021–2026

    39.6 °F

  • Average 2021–2026

    47.6 °F

  • Average High 2021–2026

    54.8 °F
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