St Marys Weather Forecast

    • 12
    • 26

    Mostly sunny

    • 11
    • 26

    Sunny

    • 9
    • 26

    Sunny

    • 11
    • 25

    Partly cloudy

    • 9
    • 25

    Partly cloudy

    • 13
    • 24

    Shower or two

    • 13
    • 24

    Partly cloudy

Today 25 Apr Sydney

Mostly sunny. The chance of fog in the west in the early morning. Slight chance of a shower along the coastal fringe in the morning. Near zero chance of rain elsewhere. Light winds becoming northeasterly 15 to 20 km/h in the early afternoon then becoming light in the evening.

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St Marys Temperature Statistics View More

April Temperature

Penrith Lakes (10km)

  • Lowest 19 April, 2026

    7.4 °C

  • Average April

    17.9 °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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