Hertfordshire weather live forecast

Tomorrow's maximum temperature in Hertfordshire is expected to be 22°C.

5-day weather forecast updated at 04:04 on Tuesday 22nd July 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 Wednesday 23rd July 2025

Expect sunshine and showers in Hertfordshire with a maximum temperature of 22°C, maximum UV of 5 (Moderate) and 6 hours of bright sunshine. There are 2-5 mm of rainfall expected with 39% chance of some rain and little or no wind of 2 kph from the north-west.

  • 22°C maximum temperature22
    °C maximum temperature
  • 16°C minimum temperature16
    °C minimum temperature
  • Sunshine and showers
    sunshine and showers
  • 6 hours of bright sunshine6
    hours of sunshine
  • UV (maximum) index 5 (Moderate)5
    UV index (Moderate)
  • 39% chance of some rain39
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Little or no wind of 2 kph from the North-West2
    kph wind from NW

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Hertfordshire weather for Thursday 24th July 2025

Expect mostly cloudy with light rain in Hertfordshire with a maximum temperature of 21°C, maximum UV of 5 (Moderate) and 2 hours of bright sunshine. There are 2-5 mm of rainfall expected with 38% chance of some rain and little or no wind of 2 kph from the north.

  • 21°C maximum temperature21
    °C maximum temperature
  • 15°C minimum temperature15
    °C minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • 2 hours of bright sunshine2
    hours of sunshine
  • UV (maximum) index 5 (Moderate)5
    UV index (Moderate)
  • 38% chance of some rain38
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Little or no wind of 2 kph from the North2
    kph wind from N

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Hertfordshire weather for Friday 25th July 2025

Expect broken clouds in Hertfordshire with a maximum temperature of 25°C, maximum UV of 5 (Moderate) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 1 kph from the west.

  • 25°C maximum temperature25
    °C maximum temperature
  • 16°C minimum temperature16
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 7 hours of bright sunshine7
    hours of sunshine
  • UV (maximum) index 5 (Moderate)5
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Little or no wind of 1 kph from the West1
    kph wind from W

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Hertfordshire weather for Saturday 26th July 2025

Expect broken clouds in Hertfordshire with a maximum temperature of 25°C, maximum UV of 5 (Moderate) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 2 kph from the north-west.

  • 25°C maximum temperature25
    °C maximum temperature
  • 16°C minimum temperature16
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 5 hours of bright sunshine5
    hours of sunshine
  • UV (maximum) index 5 (Moderate)5
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 25°C wind chill25
    °C wind chill
  • Little or no wind of 2 kph from the North-West2
    kph wind from NW

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Hertfordshire weather for Sunday 27th July 2025

Expect broken clouds in Hertfordshire with a maximum temperature of 23°C, maximum UV of 2 (Low) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 2 kph from the north-west.

  • 23°C maximum temperature23
    °C maximum temperature
  • 16°C minimum temperature16
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 7 hours of bright sunshine7
    hours of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 23°C wind chill23
    °C wind chill
  • Little or no wind of 2 kph from the North-West2
    kph wind from NW

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  • Save 25% on new English Heritage memberships
  • Get FREE unlimited access to over 400 historic attractions
  • Exclusive discount applies to annual & gift memberships
Show discount codeShow discount code ******M25

Expires at 23:59 on Wednesday 31st Dec 2025 · View all English Heritage offers

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Metric (°C / mm)  |  Imperial (°F / inches)

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