Casterton Weather Forecast

    • 3
    • 20

    Shower or two

    • 12
    • 26

    Windy. Partly cloudy

    • 15
    • 23

    Showers

    • 11
    • 19

    Rain

    • 8
    • 16

    Shower or two

    • 5
    • 16

    Partly cloudy

    • 5
    • 18

    Partly cloudy

Today 28 Sep South West

Partly cloudy. Medium chance of showers in the west, becoming less likely later tonight. Near zero chance of rain elsewhere. Winds east to northeasterly 15 to 20 km/h.

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Casterton Temperature Statistics View More

September Temperature

Casterton (5km)

  • Lowest 22 September, 2026

    -1.3 °C

  • Average September

    11.3 °C

  • Highest 19 September, 2026

    24.8 °C

Climate (2021–2026)

Casterton (5km)

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  • Average Low 2021–2026

    8.5 °C

  • Average 2021–2026

    13.7 °C

  • Average High 2021–2026

    19.9 °C
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