St John's Weather Forecast

    • 17
    • 34

    Sunny day

    • 15
    • 27

    Sunny day

    • 16
    • 27

    Partly cloudy

    • 14
    • 24

    Cloudy

    • 14
    • 24

    Cloudy

    • 14
    • 21

    Cloudy

Today 26 May London and South East England

A sunny start becoming cloudy with chance of some isolated thundery showers developing in the afternoon. Overnight turns more settled with clearing skies. Temperatures remaining high. Maximum temperature 35 °C.

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St John's Temperature Statistics

May Temperature

Heathrow (21km)

  • Lowest 12 May, 2026

    3 °C

  • Average May

    13.7 °C

  • Highest 23 May, 2026

    29.3 °C

Climate (2021–Present)

Heathrow (21km)

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  • Average Low 2021–2026

    8.8 °C

  • Average 2021–2026

    12.5 °C

  • Average High 2021–2026

    16.3 °C
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