Hertfordshire weather live forecast

Tomorrow's maximum temperature in Hertfordshire is expected to be 28°C.

Friday
27th Jun

28

12

9
Saturday
28th Jun

29

17

5
Sunday
29th Jun

31

16

11
Monday
30th Jun

34

18

13
Tuesday
1st Jul

32

19

7

5-day weather forecast updated at 04:03 on Friday 27th 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 Friday 27th June 2025

Expect sunshine and showers in Hertfordshire with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 5 (Moderate) and 9 hours of bright sunshine. There are 2-5 mm of rainfall expected with 5% chance of some rain and a moderate breeze of 24 kph from the south-west.

28
°C maximum temperature
12
°C minimum temperature
sunshine and showers
9
hours of sunshine
5
UV index (Moderate)
5
% chance of some rain
<5
mm of rainfall expected
L
low heat & humidity
24
kph wind from SW

Hertfordshire weather for Saturday 28th June 2025

Expect broken clouds in Hertfordshire with a maximum temperature of 29°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 20 kph from the west.

29
°C maximum temperature
17
°C minimum temperature
broken clouds
5
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
M
moderate heat & humidity
20
kph wind from W

Hertfordshire weather for Sunday 29th June 2025

Expect scattered clouds in Hertfordshire with a maximum temperature of 31°C, moderate levels of heat & humidity, maximum UV of 7 (High) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 11 kph from the west.

31
°C maximum temperature
16
°C minimum temperature
scattered clouds
11
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
M
moderate heat & humidity
11
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 7 (High) and 13 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the south.

34
°C maximum temperature
18
°C minimum temperature
scattered clouds
13
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
H
high heat & humidity
16
kph wind from S

Hertfordshire weather for Tuesday 1st July 2025

Expect broken clouds in Hertfordshire with a maximum temperature of 32°C, moderate levels of heat & humidity, maximum UV of 7 (High) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 17 kph from the south-west.