Heathrow Airport Weather Forecast

    • 15
    • 26

    Sunny day

    • 13
    • 23

    Thunder

    • 12
    • 22

    Cloudy

    • 12
    • 22

    Partly cloudy

    • 14
    • 23

    Partly cloudy

    • 14
    • 23

    Light rain shower

    • 15
    • 24

    Cloudy

Today 19 Aug London and South East England

A cloudy start with showers clearing to leave a mostly dry morning. A few more showers develop through the afternoon, potentially turning heavy with a risk of hail and thunder later. Light winds freshening in the showers. Maximum temperature 24 °C.

Tonight 19 Aug London and South East England

A mostly dry start to the evening with any showers quickly clearing away eastwards. Turning drier and clearer overnight, though perhaps a few more showers returning by dawn. Minimum temperature 11 °C.

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Heathrow Airport Temperature Statistics

August Temperature

Heathrow (0km)

  • Lowest 7 August, 2026

    11.6 °C

  • Average August

    22.6 °C

  • Highest 13 August, 2026

    36.9 °C

Climate (2021–2026)

Heathrow (0km)

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  • Average Low 2021–2026

    8.9 °C

  • Average 2021–2026

    12.6 °C

  • Average High 2021–2026

    16.5 °C
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