Windsor Weather Forecast

    • 15
    • 24

    Cloudy

    • 9
    • 22

    Cloudy

    • 11
    • 20

    Cloudy

    • 12
    • 23

    Sunny day

    • 12
    • 20

    Partly cloudy

    • 13
    • 20

    Cloudy

    • 14
    • 20

    Cloudy

Today 22 Sep London and South East England

A bright start for areas, cloud developing more widely in the north of region through the day but remaining dry with good sunny spells. Feeling warm. Maximum temperature 25 °C.

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Windsor Temperature Statistics

September Temperature

Heathrow (11km)

  • Lowest 21 September, 2026

    9.2 °C

  • Average September

    18 °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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