Old St Mellons Weather Forecast

    • 10
    • 17

    Sunny day

    • 10
    • 15

    Partly cloudy

    • 12
    • 15

    Partly cloudy

    • 14
    • 15

    Heavy rain

    • 13
    • 17

    Cloudy

    • 14
    • 20

    Partly cloudy

    • 15
    • 23

    Sunny day

Today 8 Jun Wales

A wet start today, with the rain heavy in places and accompanied by gusty winds. The rain will clear to the east by lunchtime leading to a much drier and brighter afternoon with sunny spells. Feeling rather cool for June. Maximum temperature 16 °C.

Tonight 8 Jun Wales

Largely dry this evening across the east but scattered showers further west will tend to spread a little further east overnight. A rather chilly night for June. Minimum temperature 7 °C.

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Old St Mellons Temperature Statistics

June Temperature

St-athan (26km)

  • Lowest 5 June, 2026

    11.3 °C

  • Average June

    14.1 °C

  • Highest 3 June, 2026

    18 °C

Climate (2021–Present)

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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