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.

Tuesday
22nd Sep
23

13

3

3
Wednesday
23rd Sep
22

13

7

2
Thursday
24th Sep
20

11

6

3
Friday
25th Sep
24

11

5

3
Saturday
26th Sep
21

12

1

3

5-day weather forecast updated at 04:03 on Tuesday 22nd September 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 22nd September 2026

Expect mostly cloudy with light rain in Hertfordshire with a maximum temperature of 23°C, maximum UV of 3 (Moderate) and 3 hours of bright sunshine. There are 0-2 mm of rainfall expected and little or no wind of 5 kph from the south.

23
°C maximum temperature
13
°C minimum temperature
mostly cloudy with light rain
3
hours of sunshine
3
UV index (Moderate)
<2
mm of rainfall expected
0
no heat & humidity
5
kph wind from S

Hertfordshire weather for Wednesday 23rd September 2026

Expect broken clouds in Hertfordshire with a maximum temperature of 22°C, maximum UV of 2 (Low) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 17 kph from the north-west.

22
°C maximum temperature
13
°C minimum temperature
broken clouds
7
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
0
no heat & humidity
17
kph wind from NW

Hertfordshire weather for Thursday 24th September 2026

Expect broken clouds in Hertfordshire with a maximum temperature of 20°C, maximum UV of 3 (Moderate) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the south.

20
°C maximum temperature
11
°C minimum temperature
broken clouds
6
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
12
kph wind from S

Hertfordshire weather for Friday 25th September 2026

Expect broken clouds in Hertfordshire with a maximum temperature of 24°C, maximum UV of 3 (Moderate) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the south-west.

24
°C maximum temperature
11
°C minimum temperature
broken clouds
5
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
24
°C wind chill
14
kph wind from SW

Hertfordshire weather for Saturday 26th September 2026

Expect overcast skies in Hertfordshire with a maximum temperature of 21°C, maximum UV of 3 (Moderate) and 1 hour of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 5 kph from the south-west.