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.

Friday
22nd May
27

13

14

UV6
Saturday
23rd May
27

17

11

UV6
Sunday
24th May
30

15

15

UV7
Monday
25th May
33

18

15

UV7
Tuesday
26th May
31

16

16

UV7

5-day weather forecast updated at 04:03 on Friday 22nd 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 Friday 22nd 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 14 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 15 kph from the south.

27
°C maximum temperature
13
°C minimum temperature
scattered clouds
14
hours of sunshine
UV6
UV index (High)
0
mm of rainfall expected
L
low heat & humidity
15
kph wind from S

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 11 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 5 kph from the west.

27
°C maximum temperature
17
°C minimum temperature
scattered clouds
11
hours of sunshine
UV6
UV index (High)
0
mm of rainfall expected
L
low heat & humidity
5
kph wind from W

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 7 (High) and 15 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 7 kph from the west.

30
°C maximum temperature
15
°C minimum temperature
clear skies
15
hours of sunshine
UV7
UV index (High)
0
mm of rainfall expected
M
moderate heat & humidity
7
kph wind from W

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 7 (High) and 15 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 13 kph from the south.

33
°C maximum temperature
18
°C minimum temperature
clear skies
15
hours of sunshine
UV7
UV index (High)
0
mm of rainfall expected
H
high heat & humidity
13
kph wind from S

Hertfordshire weather for Tuesday 26th May 2026

Expect clear skies in Hertfordshire with a maximum temperature of 31°C, moderate levels of heat & humidity, maximum UV of 7 (High) and 16 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 13 kph from the east.