City of London Weather Forecast

    • 16
    • 22

    Sunny day

    • 15
    • 23

    Cloudy

    • 11
    • 22

    Cloudy

    • 14
    • 20

    Sunny day

    • 14
    • 23

    Sunny day

    • 14
    • 21

    Cloudy

Today 21 Sep London and South East England

Another dry day with plenty of sunshine, though perhaps turning cloudier across the north of the region during the afternoon. Patchy mist and fog possible overnight. Maximum temperature 23 °C.

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City of London Temperature Statistics

September Temperature

Northolt (23km)

  • Lowest 18 September, 2026

    10.4 °C
  • Average September

    17.8 °C
  • Highest 6 September, 2026

    27.9 °C

Climate (2021–2026)

Northolt (23km)

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  • Average Low 2021–2026

    8.1 °C
  • Average 2021–2026

    12.2 °C
  • Average High 2021–2026

    16.4 °C
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