Diamond Island Weather Forecast

    • 30
    • 43

    Mostly Sunny

    • 48
    • 53

    Rain Likely

    • 45
    • 62

    Slight Chance Rain

    • 57
    • 63

    Mostly Cloudy

    • 57
    • 70

    Mostly Cloudy

    • 49
    • 66

    Mostly Cloudy

Today 21 Dec Henderson

Mostly sunny. Highs in the mid 40s. Northeast Winds 5 to 10 Mph.

Tonight 21 Dec Henderson

Mostly clear in the Evening, then becoming partly cloudy. Lows around 30. East Winds around 5 Mph.

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Diamond Island Temperature Statistics

December Temperature

Henderson City (5.6 miles)

  • Lowest 14 December, 2025

    6.1 °F

  • Average December

    33.7 °F

  • Highest 17 December, 2025

    59 °F

Climate (2020–Present)

Henderson City (5.6 miles)

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  • Average Low 2020–2025

    47.7 °F

  • Average 2020–2025

    57.6 °F

  • Average High 2020–2025

    67.6 °F
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