St Marys Weather Forecast

    • 1
    • 11

    Partly cloudy

    • 4
    • 12

    Cloudy

    • 7
    • 14

    Possible shower

    • 4
    • 15

    Partly cloudy

    • 5
    • 15

    Possible shower

    • 9
    • 14

    Showers

    • 4
    • 10

    Shower or two

Today 23 Jul East Coast

Partly cloudy. High chance of showers in the south, medium chance elsewhere. Snow falling above 500 metres. Possible small hail. Winds westerly 25 to 35 km/h. Daytime maximum temperatures between 6 and 11.

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  • Temperature Forecast Bureau of Meteorology

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St Marys Temperature Statistics View More

July Temperature

St Helens Aerodrome (28km)

  • Lowest 11 July, 2026

    3.4 °C

  • Average July

    10 °C

  • Highest 19 July, 2026

    17.3 °C

Climate (2021–2026)

St Helens Aerodrome (28km)

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  • Average Low 2021–2026

    9.4 °C

  • Average 2021–2026

    13.4 °C

  • Average High 2021–2026

    18.3 °C
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