Lake Hiawatha Weather Forecast

    • 57
    • 77

    Chance Rain Showers

    • 60
    • 72

    Chance Rain Showers

    • 60
    • 82

    Partly Sunny

    • 54
    • 83

    Mostly Sunny

    • 53
    • 74

    Partly Sunny

    • 54
    • 75

    Partly Sunny

Today 16 Sep Morris

Mostly cloudy this Morning, then becoming partly sunny. Highs in the mid 70s. Northeast Winds 5 to 10 Mph.

Tonight 16 Sep Morris

Mostly cloudy. A slight chance of Showers in the Evening, then a chance of Showers with a slight chance of Thunderstorms after midnight. Lows in the mid 50s. East Winds 5 to 10 Mph. Chance of rain 50 percent.

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Lake Hiawatha Temperature Statistics

September Temperature

Caldwell, Essex County Airport (5 miles)

  • Lowest 8 September, 2025

    50 °F

  • Average September

    67.7 °F

  • Highest 5 September, 2025

    84.9 °F

Climate (2020–Present)

Caldwell, Essex County Airport (5 miles)

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  • Average Low 2020–2025

    47.1 °F

  • Average 2020–2025

    56.3 °F

  • Average High 2020–2025

    65.6 °F
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