Hertfordshire weather live forecast

Today's maximum temperature in Hertfordshire is expected to be 27°C. Select a day from the live weather forecast for Hertfordshire (Watford), UK for more weather parameters.

Saturday
23rd May
27

18

10

UV6
Sunday
24th May
30

15

15

UV6
Monday
25th May
33

17

16

UV6
Tuesday
26th May
33

17

11

UV7
Wednesday
27th May
25

13

15

UV7

5-day weather forecast updated at 04:03 on Saturday 23rd 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 Saturday 23rd May 2026

Expect scattered 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-west.

27
°C maximum temperature
18
°C minimum temperature
scattered clouds
10
hours of sunshine
UV6
UV index (High)
0
mm of rainfall expected
L
low heat & humidity
8
kph wind from NW

Hertfordshire weather for Sunday 24th May 2026

Expect clear skies in Hertfordshire with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 6 (High) and 15 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 4 kph from the east.

30
°C maximum temperature
15
°C minimum temperature
clear skies
15
hours of sunshine
UV6
UV index (High)
0
mm of rainfall expected
M
moderate heat & humidity
4
kph wind from E

Hertfordshire weather for Monday 25th May 2026

Expect clear skies in Hertfordshire with a maximum temperature of 33°C, high levels of heat & humidity, maximum UV of 6 (High) and 16 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the south.

33
°C maximum temperature
17
°C minimum temperature
clear skies
16
hours of sunshine
UV6
UV index (High)
0
mm of rainfall expected
H
high heat & humidity
14
kph wind from S

Hertfordshire weather for Tuesday 26th May 2026

Expect scattered clouds in Hertfordshire with a maximum temperature of 33°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 9 kph from the north-east.

33
°C maximum temperature
17
°C minimum temperature
scattered clouds
11
hours of sunshine
UV7
UV index (High)
0
mm of rainfall expected
M
moderate heat & humidity
9
kph wind from NE

Hertfordshire weather for Wednesday 27th May 2026

Expect scattered clouds in Hertfordshire with a maximum temperature of 25°C, maximum UV of 7 (High) and 15 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 10 kph from the east.