Merriwa Weather Forecast

    • 18
    • 23

    Shower or two

    • 17
    • 22

    Possible shower

    • 14
    • 22

    Partly cloudy

    • 15
    • 25

    Sunny

    • 18
    • 27

    Partly cloudy

    • 19
    • 25

    Partly cloudy

    • 18
    • 25

    Partly cloudy

Today 30 Mar Perth

Partly cloudy. The chance of fog in the northeast early this morning. High chance of showers, most likely during the morning and afternoon. Light winds becoming westerly 20 to 30 km/h in the morning.

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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Merriwa Temperature Statistics View More

March Temperature

Gingin Airport (26km)

  • Lowest 2 March, 2026

    10.3 °C

  • Average March

    23.4 °C

  • Highest 7 March, 2026

    40.8 °C

Climate (2021–Present)

Gingin Airport (26km)

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  • Average Low 2021–2026

    11.5 °C

  • Average 2021–2026

    18.3 °C

  • Average High 2021–2026

    26.2 °C
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