Hay Valley Weather Forecast

    • 11
    • 25

    Sunny

    • 14
    • 23

    Possible late shower

    • 8
    • 14

    Cloudy

    • 3
    • 19

    Sunny

    • 6
    • 24

    Sunny

    • 13
    • 27

    Partly cloudy

    • 16
    • 27

    Partly cloudy

Today 19 Sep Mount Barker

Sunny. Winds northwesterly 15 to 25 km/h becoming light in the late afternoon then becoming northerly 15 to 25 km/h in the late evening.

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Hay Valley Temperature Statistics View More

September Temperature

Mount Barker (8km)

  • Lowest 17 September, 2026

    2.2 °C

  • Average September

    12.4 °C

  • Highest 12 September, 2026

    21.9 °C

Climate (2021–2026)

Mount Barker (8km)

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  • Average Low 2021–2026

    9.4 °C

  • Average 2021–2026

    14 °C

  • Average High 2021–2026

    21.1 °C
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