Windsor Weather Forecast

    • 19
    • 29

    Sunny day

    • 17
    • 25

    Light rain shower

    • 15
    • 22

    Thunder shower

    • 16
    • 22

    Thunder shower

    • 15
    • 22

    Light rain shower

    • 15
    • 22

    Light rain shower

    • 15
    • 23

    Light rain shower

Today 18 Jul London and South East England

Any early mist and fog patches soon clearing to give a very warm and humid day with the risk of isolated showers, a few of these perhaps turning heavy and thundery during the afternoon. Winds generally light away from showers. Maximum Temperature 30C.

Tonight 18 Jul London and South East England

A fine end to the day, with some very warm sunshine. Cloud increasing from the south overnight, with areas of heavy and thundery rain moving northwards during the early hours of Saturday morning. A rather warm and muggy night. Minimum Temperature 18C.

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Windsor Temperature Statistics

July Temperature

Heathrow (11km)

  • Lowest 3 July, 2025

    12 °C

  • Average July

    21.1 °C

  • Highest 1 July, 2025

    32.7 °C

Climate (2020–Present)

Heathrow (11km)

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  • Average Low 2020–2025

    8.5 °C

  • Average 2020–2025

    12.2 °C

  • Average High 2020–2025

    16.1 °C
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