St Marys Weather Forecast

    • 19
    • 29

    Mostly sunny

    • 17
    • 23

    Cloudy

    • 15
    • 25

    Partly cloudy

    • 14
    • 29

    Sunny

    • 17
    • 31

    Partly cloudy

    • 19
    • 26

    Shower or two

    • 19
    • 25

    Shower or two

Today 12 Mar Sydney

Mostly sunny day. Slight chance of a shower later tonight. Winds west to southwesterly 15 to 20 km/h turning south to southeasterly 25 to 35 km/h during the morning.

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  • Temperature Forecast Bureau of Meteorology

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St Marys Temperature Statistics View More

March Temperature

Penrith Lakes (10km)

  • Lowest 11 March, 2026

    17.3 °C

  • Average March

    23.2 °C

  • Highest 6 March, 2026

    31.4 °C

Climate (2021–Present)

Penrith Lakes (10km)

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  • Average Low 2021–2026

    12.5 °C

  • Average 2021–2026

    17.8 °C

  • Average High 2021–2026

    24.8 °C
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