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.

Saturday
16th Aug
26

15

7

5
Sunday
17th Aug
26

14

10

6
Monday
18th Aug
25

15

5

4
Tuesday
19th Aug
25

15

6

3
Wednesday
20th Aug
21

13

7

5

5-day weather forecast updated at 04:04 on Saturday 16th August 2025 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 Saturday 16th August 2025

Expect scattered clouds in Hertfordshire with a maximum temperature of 26°C, maximum UV of 5 (Moderate) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 19 kph from the north-east.

26
°C maximum temperature
15
°C minimum temperature
scattered clouds
7
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
26
°C wind chill
19
kph wind from NE

Hertfordshire weather for Sunday 17th August 2025

Expect scattered clouds in Hertfordshire with a maximum temperature of 26°C, maximum UV of 6 (High) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the east.

26
°C maximum temperature
14
°C minimum temperature
scattered clouds
10
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
26
°C wind chill
16
kph wind from E

Hertfordshire weather for Monday 18th August 2025

Expect broken clouds in Hertfordshire with a maximum temperature of 25°C, maximum UV of 4 (Moderate) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 18 kph from the east.

25
°C maximum temperature
15
°C minimum temperature
broken clouds
5
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
25
°C wind chill
18
kph wind from E

Hertfordshire weather for Tuesday 19th August 2025

Expect broken clouds in Hertfordshire with a maximum temperature of 25°C, maximum UV of 3 (Moderate) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 20 kph from the north-east.

25
°C maximum temperature
15
°C minimum temperature
broken clouds
6
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
20
kph wind from NE

Hertfordshire weather for Wednesday 20th August 2025

Expect sunshine and showers in Hertfordshire with a maximum temperature of 21°C, maximum UV of 5 (Moderate) and 7 hours of bright sunshine. There are 0-2 mm of rainfall expected with 9% chance of some rain and a moderate breeze of 22 kph from the north-east.