Summertown Weather Forecast

    • 12
    • 20

    Cloudy

    • 11
    • 20

    Partly cloudy

    • 10
    • 26

    Sunny

    • 10
    • 26

    Mostly sunny

    • 11
    • 22

    Partly cloudy

    • 11
    • 21

    Cloud clearing

    • 11
    • 23

    Sunny

Today 10 Jan Mount Lofty Ranges

Cloudy. Slight chance of a shower about the southern Fleurieu Peninsula, near zero chance elsewhere. Winds west to southwesterly 25 to 40 km/h tending south to southwesterly during the morning and early afternoon. Daytime maximum temperatures in the low 20s.

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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Summertown Temperature Statistics View More

January Temperature

Mount Lofty (2km)

  • Lowest 1 January, 2026

    5.6 °C

  • Average January

    21.7 °C

  • Highest 8 January, 2026

    38.3 °C

Climate (2021–Present)

Mount Lofty (2km)

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  • Average Low 2021–2026

    8.9 °C

  • Average 2021–2026

    12.4 °C

  • Average High 2021–2026

    17.3 °C
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