Hertfordshire weather live forecast

Today's maximum temperature in Hertfordshire is expected to be 23°C. Select a day from the live weather forecast for Hertfordshire (Watford), UK for more weather parameters.

Friday
28th Aug
23

15

5

4
Saturday
29th Aug
20

16

1

2
Sunday
30th Aug
22

15

4

3
Monday
31st Aug
22

13

6

4
Tuesday
1st Sep
22

12

5

4

5-day weather forecast updated at 04:03 on Friday 28th August 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 28th August 2026

Expect mostly cloudy with light rain in Hertfordshire with a maximum temperature of 23°C, maximum UV of 4 (Moderate) and 5 hours of bright sunshine. There are 2-5 mm of rainfall expected with 48% chance of some rain and a moderate breeze of 21 kph from the south-west.

23
°C maximum temperature
15
°C minimum temperature
mostly cloudy with light rain
5
hours of sunshine
4
UV index (Moderate)
48
% chance of some rain
<5
mm of rainfall expected
0
no heat & humidity
21
kph wind from SW

Hertfordshire weather for Saturday 29th August 2026

Expect isolated thunderstorms in Hertfordshire with a maximum temperature of 20°C, maximum UV of 2 (Low) and 1 hour of bright sunshine. There are 5-10 mm of rainfall expected with 94% chance of some rain and a moderate breeze of 22 kph from the south.

20
°C maximum temperature
16
°C minimum temperature
isolated thunderstorms
1
hour of sunshine
2
UV index (Low)
94
% chance of some rain
<10
mm of rainfall expected
20
°C wind chill
22
kph wind from S

Hertfordshire weather for Sunday 30th August 2026

Expect mostly cloudy with light rain in Hertfordshire with a maximum temperature of 22°C, maximum UV of 3 (Moderate) and 4 hours of bright sunshine. There are 2-5 mm of rainfall expected with 70% chance of some rain and a moderate breeze of 20 kph from the south-west.

22
°C maximum temperature
15
°C minimum temperature
mostly cloudy with light rain
4
hours of sunshine
3
UV index (Moderate)
70
% chance of some rain
<5
mm of rainfall expected
0
no heat & humidity
20
kph wind from SW

Hertfordshire weather for Monday 31st August 2026

Expect sunshine and showers in Hertfordshire with a maximum temperature of 22°C, maximum UV of 4 (Moderate) and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 24% chance of some rain and a moderate breeze of 25 kph from the west.

22
°C maximum temperature
13
°C minimum temperature
sunshine and showers
6
hours of sunshine
4
UV index (Moderate)
24
% chance of some rain
<2
mm of rainfall expected
22
°C wind chill
25
kph wind from W

Hertfordshire weather for Tuesday 1st September 2026

Expect mostly cloudy with light rain in Hertfordshire with a maximum temperature of 22°C, maximum UV of 4 (Moderate) and 5 hours of bright sunshine. There are 0-2 mm of rainfall expected with 34% chance of some rain and a gentle breeze of 17 kph from the south-west.