Greater London weather live forecast

Today's maximum temperature in Greater London is expected to be 20°C. Select a day from the live weather forecast for Greater London (London), UK for more weather parameters.

Wednesday
3rd Sep
20

15

3

3
Thursday
4th Sep
19

14

4

3
Friday
5th Sep
21

12

6

3
Saturday
6th Sep
23

13

6

3
Sunday
7th Sep
23

17

1

4

5-day weather forecast updated at 04:00 on Wednesday 3rd September 2025 GMT

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The 5-day weather forecast for Greater London (London) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Greater London weather forecast by day

Below are the detailed weather forecasts for Greater London for the next 5 days.

Greater London weather for Wednesday 3rd September 2025

Expect isolated thunderstorms in Greater London with a maximum temperature of 20°C, maximum UV of 3 (Moderate) and 3 hours of bright sunshine. There are 10-20 mm of rainfall expected with 87% chance of some rain and a moderate breeze of 24 kph from the south-west.

20
°C maximum temperature
15
°C minimum temperature
isolated thunderstorms
3
hours of sunshine
3
UV index (Moderate)
87
% chance of some rain
<20
mm of rainfall expected
20
°C wind chill
24
kph wind from SW

Greater London weather for Thursday 4th September 2025

Expect isolated thunderstorms in Greater London with a maximum temperature of 19°C, maximum UV of 3 (Moderate) and 4 hours of bright sunshine. There are 5-10 mm of rainfall expected with 76% chance of some rain and a gentle breeze of 19 kph from the south-west.

19
°C maximum temperature
14
°C minimum temperature
isolated thunderstorms
4
hours of sunshine
3
UV index (Moderate)
76
% chance of some rain
<10
mm of rainfall expected
19
°C wind chill
19
kph wind from SW

Greater London weather for Friday 5th September 2025

Expect scattered clouds in Greater London with a maximum temperature of 21°C, maximum UV of 3 (Moderate) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 11 kph from the south-west.

21
°C maximum temperature
12
°C minimum temperature
scattered clouds
6
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
21
°C wind chill
11
kph wind from SW

Greater London weather for Saturday 6th September 2025

Expect broken clouds in Greater London with a maximum temperature of 23°C, maximum UV of 3 (Moderate) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 17 kph from the south-east.

23
°C maximum temperature
13
°C minimum temperature
broken clouds
6
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
23
°C wind chill
17
kph wind from SE

Greater London weather for Sunday 7th September 2025

Expect broken clouds in Greater London with a maximum temperature of 23°C, maximum UV of 4 (Moderate) and 1 hour of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the south.