Casterton Weather Forecast

    • 8
    • 22

    Partly cloudy

    • 15
    • 25

    Shower or two

    • 11
    • 19

    Shower or two

    • 8
    • 19

    Showers increasing

    • 12
    • 17

    Showers

    • 7
    • 16

    Cloudy

    • 5
    • 19

    Possible shower

Today 18 Oct South West

Partly cloudy. The chance of fog in the northwest in the early morning. Slight chance of a shower in the south in the morning. Near zero chance of rain elsewhere. Winds westerly 15 to 20 km/h becoming light before dawn then becoming northerly 15 to 20 km/h in the late evening. Overnight temperatures falling to between 5 and 9 with daytime temperatures reaching around 20.

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Casterton Temperature Statistics View More

October Temperature

Casterton (5km)

  • Lowest 13 October, 2025

    1.7 °C

  • Average October

    12.4 °C

  • Highest 16 October, 2025

    24.6 °C

Climate (2020–Present)

Casterton (5km)

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  • Average Low 2020–2025

    8.4 °C

  • Average 2020–2025

    13.6 °C

  • Average High 2020–2025

    19.7 °C
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