Hertfordshire weather live forecast

Today's maximum temperature in Hertfordshire is expected to be 15°C. Select a day from the live weather forecast for Hertfordshire (Watford), UK for more weather parameters.

  • Tuesday
    12th May
    Broken clouds
  • Wednesday
    13th May
    Broken clouds
  • Thursday
    14th May
    Sunshine and showers (0-2 mm of rainfall expected)
  • Friday
    15th May
    Broken clouds
  • Saturday
    16th May
    Broken clouds

5-day weather forecast updated at 04:03 on Tuesday 12th 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 Tuesday 12th May 2026

Expect broken clouds in Hertfordshire with a maximum temperature of 15°C, maximum UV of 4 (Moderate) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 17 kph from the west.

  • 15°C maximum temperature15
    °C maximum temperature
  • 2°C minimum temperature2
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 4 hours of bright sunshine4
    hours of sunshine
  • UV (maximum) index 4 (Moderate)4
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 15°C wind chill15
    °C wind chill
  • Gentle breeze of 17 kph from the West17
    kph wind from W

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Hertfordshire weather for Wednesday 13th May 2026

Expect broken clouds in Hertfordshire with a maximum temperature of 12°C, maximum UV of 2 (Low) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 20 kph from the west.

  • 12°C maximum temperature12
    °C maximum temperature
  • 6°C minimum temperature6
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 5 hours of bright sunshine5
    hours of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Moderate breeze of 20 kph from the West20
    kph wind from W

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Hertfordshire weather for Thursday 14th May 2026

Expect sunshine and showers in Hertfordshire with a maximum temperature of 13°C, maximum UV of 5 (Moderate) and 7 hours of bright sunshine. There are 0-2 mm of rainfall expected with 71% chance of some rain and a gentle breeze of 18 kph from the north-west.

  • 13°C maximum temperature13
    °C maximum temperature
  • 5°C minimum temperature5
    °C minimum temperature
  • Sunshine and showers
    sunshine and showers
  • 7 hours of bright sunshine7
    hours of sunshine
  • UV (maximum) index 5 (Moderate)5
    UV index (Moderate)
  • 71% chance of some rain71
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • 13°C wind chill13
    °C wind chill
  • Gentle breeze of 18 kph from the North-West18
    kph wind from NW

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Hertfordshire weather for Friday 15th May 2026

Expect broken clouds in Hertfordshire with a maximum temperature of 13°C, maximum UV of 4 (Moderate) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 15 kph from the north.

  • 13°C maximum temperature13
    °C maximum temperature
  • 3°C minimum temperature3
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 5 hours of bright sunshine5
    hours of sunshine
  • UV (maximum) index 4 (Moderate)4
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Gentle breeze of 15 kph from the North15
    kph wind from N

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Hertfordshire weather for Saturday 16th May 2026

Expect broken clouds in Hertfordshire with a maximum temperature of 14°C, maximum UV of 4 (Moderate) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 8 kph from the west.

  • 14°C maximum temperature14
    °C maximum temperature
  • 4°C minimum temperature4
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 5 hours of bright sunshine5
    hours of sunshine
  • UV (maximum) index 4 (Moderate)4
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Light breeze of 8 kph from the West8
    kph wind from W

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