Merino Weather Forecast

    • 12
    • 22

    Cloud clearing

    • 12
    • 30

    Sunny

    • 17
    • 28

    Shower or two

    • 11
    • 20

    Showers

    • 8
    • 15

    Showers

    • 4
    • 13

    Shower or two

    • 3
    • 15

    Shower or two

Today 21 Oct South West

Partly cloudy. Medium chance of showers near the Grampians, slight chance elsewhere. The chance of a thunderstorm in the afternoon and early evening. Light winds becoming south to southeasterly 15 to 20 km/h in the evening then becoming light in the late evening. Daytime maximum temperatures in the low to mid 20s.

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Merino Temperature Statistics View More

October Temperature

Casterton (24 km)

  • Lowest 7 October, 2026

    1.1 °C

  • Average October

    13.5 °C

  • Highest 18 October, 2026

    25.1 °C

Climate (2021–2026)

Casterton (24 km)

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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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