St Johns Weather Forecast

    • 19
    • 37

    Partly cloudy

    • 16
    • 30

    Cloud clearing

    • 11
    • 22

    Partly cloudy

    • 9
    • 23

    Cloud clearing

    • 8
    • 28

    Sunny

    • 13
    • 37

    Sunny

    • 19
    • 39

    Mostly sunny

Today 12 Dec Mount Lofty Ranges

Partly cloudy. The chance of a thunderstorm. Winds south to southeasterly 25 to 35 km/h.

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December Temperature

Nuriootpa (PIRSA Research Centre) (12km)

  • Lowest 7 December, 2025

    3.2 °C

  • Average December

    18.2 °C

  • Highest 4 December, 2025

    36 °C

Climate (2020–Present)

Nuriootpa (PIRSA Research Centre) (12km)

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  • Average Low 2020–2025

    9.2 °C

  • Average 2020–2025

    15 °C

  • Average High 2020–2025

    21.7 °C
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