Castlehume Lough Weather Forecast

    • 11
    • 22

    Cloudy

    • 14
    • 24

    Sunny day

    • 13
    • 24

    Sunny day

    • 14
    • 24

    Cloudy

    • 13
    • 23

    Cloudy

    • 12
    • 22

    Cloudy

    • 12
    • 20

    Cloudy

Today 15 Aug Northern Ireland

It will be a rather cloudy start on Friday with cloud around the north coast and patchy mist or fog in places elsewhere, but sunny spells developing through the day. Warm in any sunshine. Maximum Temperature 22C.

Tonight 15 Aug Northern Ireland

Dry with late sunny and then clear spells through the evening, allowing some patches of mist or fog to develop. Clouding over around the Derry and Antrim coast at times. Minimum Temperature 12C.

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Castlehume Lough Temperature Statistics

August Temperature

Castlederg (34km)

  • Lowest 6 August, 2025

    9 °C

  • Average August

    15.6 °C

  • Highest 13 August, 2025

    27 °C

Climate (2020–Present)

Castlederg (34km)

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  • Average Low 2020–2025

    6.1 °C

  • Average 2020–2025

    9.8 °C

  • Average High 2020–2025

    13.5 °C
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