Merriwa Weather Forecast

    • 14
    • 34

    Partly cloudy

    • 12
    • 27

    Cloudy

    • 9
    • 28

    Partly cloudy

    • 9
    • 29

    Sunny

    • 10
    • 30

    Partly cloudy

    • 10
    • 34

    Sunny

    • 13
    • 37

    Partly cloudy

Today 25 Dec Hunter

Partly cloudy. Medium chance of showers about the Lower Hunter, slight chance elsewhere. Winds south to southwesterly 15 to 25 km/h turning southeasterly 25 to 35 km/h during the morning and early afternoon. Daytime maximum temperatures 24 to 33.

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Merriwa Temperature Statistics View More

December Temperature

Merriwa (Roscommon) (17km)

  • Lowest 3 December, 2025

    5.4 °C

  • Average December

    23.3 °C

  • Highest 21 December, 2025

    40.8 °C

Climate (2020–Present)

Merriwa (Roscommon) (17km)

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  • Average Low 2020–2025

    9 °C

  • Average 2020–2025

    15.7 °C

  • Average High 2020–2025

    23.8 °C
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