Hertfordshire weather live forecast

Today's maximum temperature in Hertfordshire is expected to be 26°C. Select a day from the live weather forecast for Hertfordshire (Watford), UK for more weather parameters.

Sunday
6th Sep
26

13

8

4
Monday
7th Sep
23

16

5

2
Tuesday
8th Sep
20

12

8

4
Wednesday
9th Sep
20

10

5

3
Thursday
10th Sep
20

10

3

3

5-day weather forecast updated at 04:03 on Sunday 6th September 2026 GMT

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

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Hertfordshire weather forecast by day

Below are the detailed weather forecasts for Hertfordshire for the next 5 days. The forecasts shown are for Watford and may not represent the whole of Hertfordshire. Browse more destinations in Hertfordshire to view more weather forecasts.

Hertfordshire weather for Sunday 6th September 2026

Expect broken clouds in Hertfordshire with a maximum temperature of 26°C, maximum UV of 4 (Moderate) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the south.

26
°C maximum temperature
13
°C minimum temperature
broken clouds
8
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
14
kph wind from S

Hertfordshire weather for Monday 7th September 2026

Expect broken clouds in Hertfordshire with a maximum temperature of 23°C, maximum UV of 2 (Low) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 18 kph from the west.

23
°C maximum temperature
16
°C minimum temperature
broken clouds
5
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
23
°C wind chill
18
kph wind from W

Hertfordshire weather for Tuesday 8th September 2026

Expect broken clouds in Hertfordshire with a maximum temperature of 20°C, maximum UV of 4 (Moderate) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 20 kph from the west.

20
°C maximum temperature
12
°C minimum temperature
broken clouds
8
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
20
kph wind from W

Hertfordshire weather for Wednesday 9th September 2026

Expect broken clouds in Hertfordshire with a maximum temperature of 20°C, maximum UV of 3 (Moderate) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 20 kph from the west.

20
°C maximum temperature
10
°C minimum temperature
broken clouds
5
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
20
°C wind chill
20
kph wind from W

Hertfordshire weather for Thursday 10th September 2026

Expect broken clouds in Hertfordshire with a maximum temperature of 20°C, maximum UV of 3 (Moderate) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the south-west.