Casterton Weather Forecast

    • 16
    • 35

    Partly cloudy

    • 16
    • 27

    Possible shower

    • 11
    • 20

    Cloudy

    • 9
    • 25

    Mostly sunny

    • 8
    • 33

    Sunny

    • 11
    • 30

    Mostly sunny

    • 12
    • 26

    Partly cloudy

Today 30 Jan South West

Partly cloudy. The chance of smoke haze this morning. Slight chance of a shower. The chance of smoke haze late this afternoon and evening. The chance of a thunderstorm with little or no rainfall about the ranges later tonight. Light winds becoming south to southeasterly 20 to 30 km/h in the early afternoon. Daytime maximum temperatures 28 to 37.

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Casterton Temperature Statistics View More

January Temperature

Casterton (5km)

  • Lowest 1 January, 2026

    5.7 °C

  • Average January

    19.6 °C

  • Highest 27 January, 2026

    44.7 °C

Climate (2021–Present)

Casterton (5km)

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  • Average Low 2021–2026

    8.4 °C

  • Average 2021–2026

    13.5 °C

  • Average High 2021–2026

    19.7 °C
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