Toonumbar Dam Weather Forecast

    • 20
    • 26

    Shower

    • 19
    • 31

    Shower

    • 21
    • 32

    Storm

    • 22
    • 34

    Storm

    • 20
    • 24

    Shower

    • 18
    • 26

    Shower

    • 17
    • 29

    Shower

Today 12 Dec Northern Rivers

Cloudy. High chance of showers. The chance of a thunderstorm in the afternoon and evening. Light winds. Overnight temperatures falling to around 19 with daytime temperatures reaching the low to high 20s.

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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Toonumbar Dam Temperature Statistics View More

December Temperature

Casino Airport (39km)

  • Lowest 3 December, 2025

    11.8 °C

  • Average December

    23.2 °C

  • Highest 6 December, 2025

    35.1 °C

Climate (2020–Present)

Casino Airport (39km)

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  • Average Low 2020–2025

    13.7 °C

  • Average 2020–2025

    19.2 °C

  • Average High 2020–2025

    26.5 °C
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