Hertfordshire weather live forecast

Today's maximum temperature in Hertfordshire is expected to be 17°C. Select a day from the live weather forecast for Hertfordshire (Watford), UK for more weather parameters.

Saturday
13th Sep
17

11

5

3
Sunday
14th Sep
18

9

1

3
Monday
15th Sep
18

13

6

3
Tuesday
16th Sep
18

11

4

3
Wednesday
17th Sep
19

12

2

2

5-day weather forecast updated at 04:04 on Saturday 13th September 2025 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 13th September 2025

Expect sunshine and showers in Hertfordshire with a maximum temperature of 17°C, maximum UV of 3 (Moderate) and 5 hours of bright sunshine. There are 0-2 mm of rainfall expected with 32% chance of some rain and a moderate breeze of 23 kph from the south-west.

17
°C maximum temperature
11
°C minimum temperature
sunshine and showers
5
hours of sunshine
3
UV index (Moderate)
32
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
23
kph wind from SW

Hertfordshire weather for Sunday 14th September 2025

Expect mostly cloudy with light rain in Hertfordshire with a maximum temperature of 18°C, maximum UV of 3 (Moderate) and 1 hour of bright sunshine. There are 2-5 mm of rainfall expected with 93% chance of some rain and a fresh breeze of 30 kph from the south-west.

18
°C maximum temperature
9
°C minimum temperature
mostly cloudy with light rain
1
hour of sunshine
3
UV index (Moderate)
93
% chance of some rain
<5
mm of rainfall expected
18
°C wind chill
30
kph wind from SW

Hertfordshire weather for Monday 15th September 2025

Expect broken clouds in Hertfordshire with a maximum temperature of 18°C, maximum UV of 3 (Moderate) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 36 kph from the south-west.

18
°C maximum temperature
13
°C minimum temperature
broken clouds
6
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
36
kph wind from SW

Hertfordshire weather for Tuesday 16th September 2025

Expect broken clouds in Hertfordshire with a maximum temperature of 18°C, maximum UV of 3 (Moderate) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 25 kph from the west.

18
°C maximum temperature
11
°C minimum temperature
broken clouds
4
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
25
kph wind from W

Hertfordshire weather for Wednesday 17th September 2025

Expect mostly cloudy with rain in Hertfordshire with a maximum temperature of 19°C, maximum UV of 2 (Low) and 2 hours of bright sunshine. There are 5-10 mm of rainfall expected with 66% chance of some rain and a fresh breeze of 31 kph from the south-west.