Grimstone Weather Forecast

    • 13
    • 25

    Sunny day

    • 17
    • 25

    Sunny day

    • 17
    • 24

    Sunny day

    • 15
    • 25

    Sunny day

    • 14
    • 23

    Sunny day

    • 14
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    Sunny day

Today 18 Jun South West England

Any cloud or mist clearing relatively quickly, leaving a fine day with plenty of strong sunshine and high UV levels. Feeling very warm with a light breeze around the coasts. Maximum Temperature 25C.

Tonight 18 Jun South West England

A fine end to Wednesday with late evening sunshine. Then a dry night with largely clear skies and light winds. A mild and rather warm night for most. Minimum Temperature 12C.

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Grimstone Temperature Statistics

June Temperature

Isle Of Portland (25km)

  • Lowest 8 June, 2025

    11.8 °C

  • Average June

    14.7 °C

  • Highest 13 June, 2025

    19.9 °C

Climate (2020–Present)

Isle Of Portland (25km)

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  • Average Low 2020–2025

    10.2 °C

  • Average 2020–2025

    12.1 °C

  • Average High 2020–2025

    14 °C
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