Windsor Weather Forecast

    • 13
    • 24

    Cloudy

    • 15
    • 27

    Cloudy

    • 13
    • 22

    Cloudy

    • 14
    • 20

    Light rain

    • 12
    • 19

    Heavy rain shower

    • 12
    • 18

    Light rain shower

    • 11
    • 18

    Light rain shower

Today 29 May London and South East England

Some early sunshine likely, although cloud increasing from the west brings a risk of showers, perhaps thundery. A slightly cooler day for many areas, but still generally very warm. Maximum temperature 28 °C.

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Windsor Temperature Statistics

May Temperature

Heathrow (11km)

  • Lowest 12 May, 2026

    3 °C

  • Average May

    15.3 °C

  • Highest 26 May, 2026

    34.7 °C

Climate (2021–Present)

Heathrow (11km)

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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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