Hertfordshire weather live forecast

Today's maximum temperature in Hertfordshire is expected to be 36°C. Select a day from the live weather forecast for Hertfordshire (Watford), UK for more weather parameters.

Tuesday
23rd Jun
36

20

12

7
Wednesday
24th Jun
38

23

15

7
Thursday
25th Jun
37

23

13

6
Friday
26th Jun
31

21

12

7
Saturday
27th Jun
26

17

12

7

5-day weather forecast updated at 04:03 on Monday 22nd June 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 23rd June 2026

Expect scattered clouds in Hertfordshire with a maximum temperature of 36°C, high levels of heat & humidity, maximum UV of 7 (High) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 11 kph from the south.

36
°C maximum temperature
20
°C minimum temperature
scattered clouds
12
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
H
high heat & humidity
11
kph wind from S

Hertfordshire weather for Wednesday 24th June 2026

Expect scattered clouds in Hertfordshire with a maximum temperature of 38°C, very high levels of heat & humidity, maximum UV of 7 (High) and 15 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 15 kph from the north-east.

38
°C maximum temperature
23
°C minimum temperature
scattered clouds
15
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
VH
very high heat & humidity
15
kph wind from NE

Hertfordshire weather for Thursday 25th June 2026

Expect scattered clouds in Hertfordshire with a maximum temperature of 37°C, high levels of heat & humidity, maximum UV of 6 (High) and 13 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the east.

37
°C maximum temperature
23
°C minimum temperature
scattered clouds
13
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
H
high heat & humidity
14
kph wind from E

Hertfordshire weather for Friday 26th June 2026

Expect scattered clouds in Hertfordshire with a maximum temperature of 31°C, moderate levels of heat & humidity, maximum UV of 7 (High) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 20 kph from the west.

31
°C maximum temperature
21
°C minimum temperature
scattered clouds
12
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
M
moderate heat & humidity
20
kph wind from W

Hertfordshire weather for Saturday 27th June 2026

Expect scattered clouds in Hertfordshire with a maximum temperature of 26°C, maximum UV of 7 (High) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 17 kph from the south-west.