St Marys Weather Forecast

    • 12
    • 30

    Hazy. Late shower or two

    • 9
    • 23

    Sunny

    • 7
    • 23

    Sunny

    • 9
    • 24

    Mostly sunny

    • 12
    • 22

    Partly cloudy

    • 11
    • 23

    Partly cloudy

    • 11
    • 23

    Mostly sunny

Today 17 Apr Sydney

Mostly sunny. Patchy smoke haze. Medium chance of showers late this afternoon and evening. The chance of a thunderstorm late this afternoon and evening, possibly severe with damaging winds and large hail. Winds west to northwesterly 15 to 20 km/h shifting southerly 20 to 30 km/h in the late afternoon.

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St Marys Temperature Statistics View More

April Temperature

Penrith Lakes (10km)

  • Lowest 13 April, 2026

    7.9 °C

  • Average April

    18.7 °C

  • Highest 7 April, 2026

    32.6 °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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