Old Furnace Weather Forecast

    • 10
    • 11

    Light rain

    • 9
    • 13

    Heavy rain

    • 6
    • 11

    Partly cloudy

    • 7
    • 10

    Cloudy

    • 5
    • 9

    Cloudy

    • 8
    • 10

    Cloudy

    • 7
    • 11

    Light rain

Today 8 Dec Wales

Any heavy showers clearing quickly to leave a generally brighter day with some morning sunny spells. Turning cloudier in the south this afternoon with showers possible. Breezy but winds gradually easing. Another mild day for early December. Maximum Temperature 13C.

Tonight 8 Dec Wales

Heavy rain spreading north this evening. Staying very wet overnight with travel disruption and flooding possible in places. Turning very windy with severe gales in places later. Becoming very mild. Minimum Temperature 9C.

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Old Furnace Temperature Statistics

December Temperature

St-athan (41km)

  • Lowest 5 December, 2025

    1.8 °C
  • Average December

    8.9 °C
  • Highest 1 December, 2025

    13.3 °C

Climate (2020–Present)

St-athan (41km)

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  • Average Low 2020–2025

    8.8 °C
  • Average 2020–2025

    11.7 °C
  • Average High 2020–2025

    14.5 °C
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