Old St Mellons Weather Forecast

    • 15
    • 21

    Cloudy

    • 19
    • 25

    Partly cloudy

    • 19
    • 26

    Partly cloudy

    • 19
    • 27

    Sunny day

    • 20
    • 28

    Sunny day

    • 20
    • 29

    Sunny day

Today 20 Jun Wales

A cloudy start with some spots of rain, especially over the hills. The cloud will break up throughout the morning, leading to a much brighter afternoon. Feeling a tad fresher. Maximum temperature 24 °C.

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Old St Mellons Temperature Statistics

June Temperature

St-athan (26km)

  • Lowest 10 June, 2026

    9.7 °C

  • Average June

    14.7 °C

  • Highest 15 June, 2026

    22.5 °C

Climate (2021–2026)

St-athan (26km)

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  • Average Low 2021–2026

    9 °C

  • Average 2021–2026

    11.8 °C

  • Average High 2021–2026

    14.7 °C
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