Ballysillan Weather Forecast

    • 13
    • 19

    Cloudy

    • 13
    • 19

    Cloudy

    • 13
    • 20

    Cloudy

    • 13
    • 20

    Cloudy

    • 12
    • 20

    Cloudy

    • 11
    • 20

    Cloudy

    • 13
    • 20

    Sunny day

Today 5 Jul Northern Ireland

Another cloudy and mostly dry day with a few spells of light rain possible in the north and west. Some occasional bright spells in the east. Maximum temperature 20 °C.

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Ballysillan Temperature Statistics

July Temperature

Aldergrove (16km)

  • Lowest 2 July, 2026

    12.5 °C

  • Average July

    15.4 °C

  • Highest 4 July, 2026

    18.9 °C

Climate (2021–2026)

Aldergrove (16km)

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  • Average Low 2021–2026

    7.5 °C

  • Average 2021–2026

    10.5 °C

  • Average High 2021–2026

    13.5 °C
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