St Marys Weather Forecast

    • 16
    • 30

    Mostly sunny

    • 18
    • 36

    Shower or two developing

    • 21
    • 30

    Shower or two

    • 21
    • 30

    Shower or two

    • 20
    • 35

    Partly cloudy

    • 20
    • 34

    Mostly sunny

    • 21
    • 35

    Shower or two

Today 17 Feb Sydney

Mostly sunny. The chance of fog in the west in the early morning. Light winds becoming northeasterly 20 to 30 km/h in the early afternoon then tending northerly 15 to 20 km/h in the late evening.

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St Marys Temperature Statistics View More

February Temperature

Penrith Lakes (10km)

  • Lowest 3 February, 2026

    15 °C

  • Average February

    22.6 °C

  • Highest 5 February, 2026

    39 °C

Climate (2021–Present)

Penrith Lakes (10km)

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  • Average Low 2021–2026

    12.5 °C

  • Average 2021–2026

    17.7 °C

  • Average High 2021–2026

    24.8 °C
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