Hertfordshire weather live forecast

Tomorrow's maximum temperature in Hertfordshire is expected to be 30°C.

Saturday
28th Jun

30

18

5
Sunday
29th Jun

30

17

8
Monday
30th Jun

34

18

14
Tuesday
1st Jul

31

19

5
Wednesday
2nd Jul

24

16

1

5-day weather forecast updated at 04:03 on Saturday 28th June 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 28th June 2025

Expect broken clouds in Hertfordshire with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 3 (Moderate) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 22 kph from the west.

30
°C maximum temperature
18
°C minimum temperature
broken clouds
5
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
M
moderate heat & humidity
22
kph wind from W

Hertfordshire weather for Sunday 29th June 2025

Expect scattered clouds in Hertfordshire with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 7 (High) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 13 kph from the west.

30
°C maximum temperature
17
°C minimum temperature
scattered clouds
8
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
M
moderate heat & humidity
13
kph wind from W

Hertfordshire weather for Monday 30th June 2025

Expect scattered clouds in Hertfordshire with a maximum temperature of 34°C, high levels of heat & humidity, maximum UV of 8 (Very High) and 14 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 18 kph from the south.

34
°C maximum temperature
18
°C minimum temperature
scattered clouds
14
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
H
high heat & humidity
18
kph wind from S

Hertfordshire weather for Tuesday 1st July 2025

Expect broken clouds in Hertfordshire with a maximum temperature of 31°C, moderate levels of heat & humidity, maximum UV of 7 (High) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the west.

31
°C maximum temperature
19
°C minimum temperature
broken clouds
5
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
M
moderate heat & humidity
14
kph wind from W

Hertfordshire weather for Wednesday 2nd July 2025

Expect broken clouds in Hertfordshire with a maximum temperature of 24°C, maximum UV of 6 (High) and 1 hour of bright sunshine. There are 0-2 mm of rainfall expected with 39% chance of some rain and a moderate breeze of 21 kph from the north-east.