Mountain Ash Weather Forecast

    • 14
    • 19

    Light rain

    • 9
    • 19

    Cloudy

    • 14
    • 18

    Cloudy

    • 13
    • 19

    Cloudy

    • 10
    • 18

    Cloudy

    • 7
    • 15

    Sunny day

Today 2 Oct Wales

A rather windy day with brisk southerly winds. Showery rain, heavy at times, erratically edging southwards, but some places may remain dry until the evening. Maximum temperature 20 °C.

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Mountain Ash Temperature Statistics

October Temperature

St-athan (31km)

  • Lowest 1 October, 2026

    12.6 °C

  • Average October

    14.6 °C

  • Highest 1 October, 2026

    16 °C

Climate (2021–2026)

St-athan (31km)

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  • Average Low 2021–2026

    9.1 °C

  • Average 2021–2026

    12 °C

  • Average High 2021–2026

    14.8 °C
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