Hertfordshire weather live forecast

Today's maximum temperature in Hertfordshire is expected to be 34°C. Select a day from the live weather forecast for Hertfordshire (Watford), UK for more weather parameters.

Tuesday
26th May
34

19

14

7
Wednesday
27th May
26

14

11

7
Thursday
28th May
31

13

13

5
Friday
29th May
28

17

3

5
Saturday
30th May
27

14

10

6

5-day weather forecast updated at 04:03 on Tuesday 26th May 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 Tuesday 26th May 2026

Expect scattered clouds in Hertfordshire with a maximum temperature of 34°C, high levels of heat & humidity, maximum UV of 7 (High) and 14 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 9 kph from the south-west.

34
°C maximum temperature
19
°C minimum temperature
scattered clouds
14
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
H
high heat & humidity
9
kph wind from SW

Hertfordshire weather for Wednesday 27th May 2026

Expect scattered clouds in Hertfordshire with a maximum temperature of 26°C, low levels of heat & humidity, maximum UV of 7 (High) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 17 kph from the east.

26
°C maximum temperature
14
°C minimum temperature
scattered clouds
11
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
L
low heat & humidity
17
kph wind from E

Hertfordshire weather for Thursday 28th May 2026

Expect scattered clouds in Hertfordshire with a maximum temperature of 31°C, moderate levels of heat & humidity, maximum UV of 5 (Moderate) and 13 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 18 kph from the east.

31
°C maximum temperature
13
°C minimum temperature
scattered clouds
13
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
M
moderate heat & humidity
18
kph wind from E

Hertfordshire weather for Friday 29th May 2026

Expect broken clouds in Hertfordshire with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 5 (Moderate) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the west.

28
°C maximum temperature
17
°C minimum temperature
broken clouds
3
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
L
low heat & humidity
12
kph wind from W

Hertfordshire weather for Saturday 30th May 2026

Expect broken clouds in Hertfordshire with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 6 (High) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 8 kph from the north-east.