Hertfordshire weather live forecast

Today's maximum temperature in Hertfordshire is expected to be 25°C. Select a day from the live weather forecast for Hertfordshire (Watford), UK for more weather parameters.

Thursday
3rd Sep
25

17

1

4
Friday
4th Sep
23

15

2

1
Saturday
5th Sep
22

12

8

4
Sunday
6th Sep
25

12

9

5
Monday
7th Sep
25

15

3

4

5-day weather forecast updated at 04:04 on Wednesday 2nd 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 Thursday 3rd September 2026

Expect broken clouds in Hertfordshire with a maximum temperature of 25°C, maximum UV of 4 (Moderate) and 1 hour of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 19 kph from the west.

25
°C maximum temperature
17
°C minimum temperature
broken clouds
1
hour of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
25
°C wind chill
19
kph wind from W

Hertfordshire weather for Friday 4th September 2026

Expect mostly cloudy with light rain in Hertfordshire with a maximum temperature of 23°C, maximum UV of 1 (Low) and 2 hours of bright sunshine. There are 2-5 mm of rainfall expected with 53% chance of some rain and a moderate breeze of 21 kph from the west.

23
°C maximum temperature
15
°C minimum temperature
mostly cloudy with light rain
2
hours of sunshine
1
UV index (Low)
53
% chance of some rain
<5
mm of rainfall expected
23
°C wind chill
21
kph wind from W

Hertfordshire weather for Saturday 5th September 2026

Expect scattered clouds in Hertfordshire with a maximum temperature of 22°C, maximum UV of 4 (Moderate) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 10 kph from the west.

22
°C maximum temperature
12
°C minimum temperature
scattered clouds
8
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
10
kph wind from W

Hertfordshire weather for Sunday 6th September 2026

Expect scattered clouds in Hertfordshire with a maximum temperature of 25°C, maximum UV of 5 (Moderate) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the south.

25
°C maximum temperature
12
°C minimum temperature
scattered clouds
9
hours of sunshine
5
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 25°C, maximum UV of 4 (Moderate) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 17 kph from the west.