Castlewellan Weather Forecast

    • 12
    • 17

    Light rain

    • 14
    • 16

    Cloudy

    • 12
    • 19

    Overcast

    • 11
    • 17

    Cloudy

    • 9
    • 17

    Cloudy

    • 12
    • 19

    Cloudy

    • 12
    • 20

    Cloudy

Today 3 Jul Northern Ireland

A mostly cloudy day with scattered showers spreading from the west. Showers will turn briefly heavy in places this afternoon. Becoming drier later in the afternoon. Maximum Temperature 18C.

Tonight 3 Jul Northern Ireland

Chance of a few showers across the north this evening, otherwise mostly dry. Then the rest of the night will be dry and rather cloudy. Minimum Temperature 11C.

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Castlewellan Temperature Statistics

July Temperature

Glenanne (36km)

  • Lowest 2 July, 2025

    8.6 °C

  • Average July

    11.4 °C

  • Highest 1 July, 2025

    16.2 °C

Climate (2020–Present)

Glenanne (36km)

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  • Average Low 2020–2025

    6.7 °C

  • Average 2020–2025

    9.6 °C

  • Average High 2020–2025

    12.6 °C
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