Castlereagh Weather Forecast

    • 11
    • 12

    Overcast

    • 12
    • 14

    Cloudy

    • 10
    • 15

    Light rain

    • 10
    • 13

    Light rain shower

    • 8
    • 13

    Cloudy

    • 7
    • 11

    Cloudy

    • 6
    • 11

    Light rain

Today 17 Oct Northern Ireland

Most staying dry with only some patchy light rain appearing early across southern districts. Brighter spells developing for the afternoon. Southeast breezes freshening for the afternoon. Maximum Temperature 14C.

Tonight 17 Oct Northern Ireland

The majority will stay dry with only a few light showers around the coasts. Best of the limited cloud breaks expected during the evening Minimum Temperature 10C.

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Castlereagh Temperature Statistics

October Temperature

Aldergrove (23km)

  • Lowest 16 October, 2025

    8.6 °C

  • Average October

    11.8 °C

  • Highest 1 October, 2025

    18 °C

Climate (2020–Present)

Aldergrove (23km)

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  • Average Low 2020–2025

    7.4 °C

  • Average 2020–2025

    10.3 °C

  • Average High 2020–2025

    13.3 °C
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