St Marys Weather Forecast

    • 14
    • 24

    Sunny

    • 12
    • 26

    Sunny

    • 15
    • 26

    Partly cloudy

    • 15
    • 28

    Partly cloudy

    • 14
    • 29

    Mostly sunny

    • 16
    • 30

    Mostly sunny

    • 16
    • 30

    Shower or two developing

Today 28 Mar Sydney

Mostly sunny. Slight chance of a shower along the coastal fringe, near zero chance elsewhere. Damaging winds possible along the coastal fringe in the early morning. Winds southwesterly 25 to 35 km/h tending southerly 20 to 30 km/h in the early afternoon then turning west to southwesterly 15 to 20 km/h in the late evening.

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St Marys Temperature Statistics View More

March Temperature

Penrith Lakes (10km)

  • Lowest 15 March, 2026

    13.6 °C

  • Average March

    22.1 °C

  • Highest 11 March, 2026

    34 °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

    24.9 °C
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