Porton Down Weather Forecast

    • 12
    • 26

    Sunny day

    • 14
    • 26

    Partly cloudy

    • 13
    • 26

    Partly cloudy

    • 13
    • 25

    Cloudy

    • 14
    • 27

    Cloudy

    • 15
    • 24

    Cloudy

    • 14
    • 24

    Cloudy

Today 20 Jul South West England

Early morning mist and fog quickly clearing to leave a fine day with patchy cloud and light winds. Feeling warm or very warm in the sunshine. Maximum temperature 25 °C.

Tonight 20 Jul South West England

A dry and fine end to the day with plenty of evening sunshine. Staying dry overnight with clear spells, some patchy cloud and light winds. Minimum temperature 10 °C.

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Porton Down Temperature Statistics

July Temperature

Boscombe Down (4km)

  • Lowest 3 July, 2026

    10.1 °C

  • Average July

    21.3 °C

  • Highest 10 July, 2026

    32.4 °C

Climate (2021–2026)

Boscombe Down (4km)

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  • Average Low 2021–2026

    7.4 °C

  • Average 2021–2026

    11.3 °C

  • Average High 2021–2026

    15.3 °C
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