Casterton Weather Forecast

    • 14
    • 25

    Cloudy

    • 13
    • 28

    Partly cloudy

    • 15
    • 31

    Mostly sunny

    • 18
    • 27

    Shower or two

    • 16
    • 31

    Mostly sunny

    • 15
    • 31

    Mostly sunny

    • 14
    • 32

    Mostly sunny

Today 16 Jan South West

Cloudy. High chance of showers near the Otways, slight chance elsewhere. The chance of a thunderstorm in the northeast during this afternoon and early evening. Winds southeasterly 30 to 45 km/h. Daytime maximum temperatures in the low to mid 20s.

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Casterton Temperature Statistics View More

January Temperature

Casterton (5km)

  • Lowest 1 January, 2026

    5.7 °C

  • Average January

    18.2 °C

  • Highest 7 January, 2026

    41.6 °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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