River Foyle - Lisnakelly Weather Forecast

    • 15
    • 17

    Cloudy

    • 12
    • 20

    Light rain

    • 11
    • 16

    Light rain

    • 12
    • 15

    Light rain shower

    • 11
    • 15

    Cloudy

    • 13
    • 17

    Light rain

    • 11
    • 16

    Cloudy

Today 5 Sep Northern Ireland

It will be bright with sunny spells and just a few isolated light showers over northern counties in the morning, becoming dry in the afternoon. Maximum temperature 18 °C.

Tonight 5 Sep Northern Ireland

Dry at first with some bright spells but becoming cloudy through the evening and overnight with some patchy light rain and freshening southerly winds. Minimum temperature 12 °C.

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River Foyle - Lisnakelly Temperature Statistics

September Temperature

Castlederg (28km)

  • Lowest 4 September, 2026

    12.3 °C

  • Average September

    14.8 °C

  • Highest 2 September, 2026

    22 °C

Climate (2021–2026)

Castlederg (28km)

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  • Average Low 2021–2026

    6.2 °C

  • Average 2021–2026

    9.9 °C

  • Average High 2021–2026

    13.6 °C
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