Northern Island Weather Forecast

    • 62
    • 69

    Thunderstorms

    • 59
    • 74

    Rain Showers

    • 58
    • 75

    Isolated Thunderstorms

    • 57
    • 71

    Mostly Sunny

    • 60
    • 71

    Partly Sunny

    • 63
    • 73

    Mostly Cloudy

Today 1 Jul Knox

Cloudy. Areas of dense fog this morning. Scattered Showers this Morning, then scattered Showers with isolated Thunderstorms this afternoon. Some Thunderstorms may produce heavy rainfall this afternoon. Visibility one quarter mile or less at Times this morning. Highs in the mid 70s. South Winds around 10 Mph. Chance of rain 40 percent.

Tonight 1 Jul Knox

Partly cloudy in the Evening, then becoming mostly cloudy. Scattered Thunderstorms in the evening. Scattered Showers. Some Thunderstorms may produce heavy rainfall in the evening. Humid with Lows in the mid 60s. Southwest Winds around 10 Mph with Gusts up to 20 Mph in the Evening, becoming light and variable. Chance of rain 40 percent.

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Northern Island Temperature Statistics

July Temperature

Rockland, Knox County Regional Airport (8.1 miles)

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Climate (2020–Present)

Rockland, Knox County Regional Airport (8.1 miles)

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  • Average Low 2020–2025

    40 °F
  • Average 2020–2025

    48 °F
  • Average High 2020–2025

    55.3 °F
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