Staines Reservoir Weather Forecast

    • 12
    • 22

    Cloudy

    • 14
    • 20

    Partly cloudy

    • 13
    • 22

    Cloudy

    • 16
    • 19

    Partly cloudy

    • 19
    • 24

    Partly cloudy

    • 15
    • 22

    Light rain shower

Today 25 Sep London and South East England

Widely clear and dry to start across the region, cloud slowly builds but a very warm day in prospect. Turning cloudier overnight with some light rain. Maximum temperature 26 °C.

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Staines Reservoir Temperature Statistics

September Temperature

Heathrow (4km)

  • Lowest 21 September, 2026

    9.2 °C

  • Average September

    18.3 °C

  • Highest 6 September, 2026

    27.6 °C

Climate (2021–2026)

Heathrow (4km)

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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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