Portland Weather Forecast

    • 14
    • 18

    Cloudy

    • 15
    • 17

    Cloudy

    • 15
    • 17

    Overcast

    • 14
    • 19

    Cloudy

    • 15
    • 19

    Partly cloudy

    • 15
    • 21

    Cloudy

    • 16
    • 23

    Sunny day

Today 15 Jun South West England

Low cloud will gradually spread around coastal areas of Devon and Cornwall through the day today. A bright start elsewhere with increasingly cloudy skies. Feeling warm. Maximum temperature 25 °C.

Tonight 15 Jun South West England

Staying mostly cloudy and murky overnight, although some clear spells are possible at times. Mist and fog patches may form in any clearer interludes. Minimum temperature 15 °C.

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Portland Temperature Statistics

June Temperature

Isle Of Portland (5km)

  • Lowest 10 June, 2026

    11.7 °C

  • Average June

    14 °C

  • Highest 13 June, 2026

    17 °C

Climate (2021–Present)

Isle Of Portland (5km)

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  • Average Low 2021–2026

    10.5 °C

  • Average 2021–2026

    12.3 °C

  • Average High 2021–2026

    14.2 °C
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