Chepstow weather live forecast

Today's maximum temperature in Chepstow is expected to be 21°C. Select a day from the live weather forecast for Chepstow, Wales, UK for more weather parameters.

Sunday
30th Aug
21

15

4

2
Monday
31st Aug
20

14

7

4
Tuesday
1st Sep
21

13

5

3
Wednesday
2nd Sep
20

16

1

4
Thursday
3rd Sep
22

17

1

4

5-day weather forecast updated at 04:03 on Sunday 30th August 2026 GMT

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

Chepstow weather forecast by day

Below are the detailed weather forecasts for Chepstow for the next 5 days.

Chepstow weather for Sunday 30th August 2026

Expect isolated thunderstorms in Chepstow, Wales with a maximum temperature of 21°C, maximum UV of 2 (Low) and 4 hours of bright sunshine. There are 5-10 mm of rainfall expected with 97% chance of some rain and a moderate breeze of 23 kph from the south-west.

21
°C maximum temperature
15
°C minimum temperature
isolated thunderstorms
4
hours of sunshine
2
UV index (Low)
97
% chance of some rain
<10
mm of rainfall expected
21
°C wind chill
23
kph wind from SW

Chepstow weather for Monday 31st August 2026

Expect isolated thunderstorms in Chepstow, Wales with a maximum temperature of 20°C, maximum UV of 4 (Moderate) and 7 hours of bright sunshine. There are 0-2 mm of rainfall expected with 5% chance of some rain and a moderate breeze of 23 kph from the west.

20
°C maximum temperature
14
°C minimum temperature
isolated thunderstorms
7
hours of sunshine
4
UV index (Moderate)
5
% chance of some rain
<2
mm of rainfall expected
20
°C wind chill
23
kph wind from W

Chepstow weather for Tuesday 1st September 2026

Expect broken clouds in Chepstow, Wales with a maximum temperature of 21°C, maximum UV of 3 (Moderate) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 26 kph from the south-west.

21
°C maximum temperature
13
°C minimum temperature
broken clouds
5
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
21
°C wind chill
26
kph wind from SW

Chepstow weather for Wednesday 2nd September 2026

Expect mostly cloudy with light rain in Chepstow, Wales with a maximum temperature of 20°C, maximum UV of 4 (Moderate) and 1 hour of bright sunshine. There are 2-5 mm of rainfall expected with 61% chance of some rain and a moderate breeze of 27 kph from the south-west.

20
°C maximum temperature
16
°C minimum temperature
mostly cloudy with light rain
1
hour of sunshine
4
UV index (Moderate)
61
% chance of some rain
<5
mm of rainfall expected
0
no heat & humidity
27
kph wind from SW

Chepstow weather for Thursday 3rd September 2026

Expect mostly cloudy with light rain in Chepstow, Wales with a maximum temperature of 22°C, maximum UV of 4 (Moderate) and 1 hour of bright sunshine. There are 2-5 mm of rainfall expected with 39% chance of some rain and a moderate breeze of 21 kph from the south-west.