Windsor Weather Forecast

    • 17
    • 25

    Cloudy

    • 12
    • 22

    Cloudy

    • 13
    • 19

    Cloudy

    • 11
    • 19

    Light rain

    • 15
    • 19

    Cloudy

    • 14
    • 21

    Cloudy

    • 14
    • 21

    Cloudy

Today 14 Sep London and South East England

Mainly fine but on the cloudy side at times. A few mainly light showers are possible, with these more likely in the south and west, with the east brightest. Generally very warm and humid, but becoming breezier later. Maximum temperature 26 °C.

Tonight 14 Sep London and South East England

A fine evening leading into a very mild night. Becoming cloudier from the west during the early hours, perhaps culminating in a little rain in the northwest by dawn. Minimum temperature 14 °C.

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Windsor Temperature Statistics

September Temperature

Heathrow (11km)

  • Lowest 9 September, 2026

    11.5 °C

  • Average September

    18.5 °C

  • Highest 6 September, 2026

    27.6 °C

Climate (2021–2026)

Heathrow (11km)

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  • Average Low 2021–2026

    8.9 °C

  • Average 2021–2026

    12.7 °C

  • Average High 2021–2026

    16.6 °C
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