Connecticut weather live forecast

Tomorrow's maximum temperature in Connecticut is expected to be 21°C.

5-day weather forecast updated at 04:00 on Tuesday 17th June 2025 GMT

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The 5-day weather forecast for Connecticut (Hartford) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

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Below are temperatures expected today at popular countries, regions and places in Connecticut. Select a destination to see the detailed weather forecast for today, tomorrow and the outlook for the next five days.

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Connecticut weather forecast by day

Below are the detailed weather forecasts for Connecticut for the next 5 days. The forecasts shown are for Hartford and may not represent the whole of Connecticut. Browse more destinations in Connecticut to view more weather forecasts.

Connecticut weather for Tuesday 17th June 2025

Expect mostly cloudy with rain in Connecticut with a maximum temperature of 21°C, maximum UV of 3 (Moderate) and no hours of bright sunshine. There are 5-10 mm of rainfall expected with 59% chance of some rain and little or no wind of 3 kph from the south.

  • 21°C maximum temperature21
    °C maximum temperature
  • 17°C minimum temperature17
    °C minimum temperature
  • Mostly cloudy with rain
    mostly cloudy with rain
  • No hours of bright sunshine0
    hours of sunshine
  • UV (maximum) index 3 (Moderate)3
    UV index (Moderate)
  • 59% chance of some rain59
    % chance of some rain
  • 5-10 mm of rainfall expected<10
    mm of rainfall expected
  • 21°C wind chill21
    °C wind chill
  • Little or no wind of 3 kph from the South3
    kph wind from S

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Connecticut weather for Wednesday 18th June 2025

Expect isolated thunderstorms in Connecticut with a maximum temperature of 25°C, maximum UV of 4 (Moderate) and 1 hour of bright sunshine. There are 10-20 mm of rainfall expected with 79% chance of some rain and a light breeze of 7 kph from the south.

  • 25°C maximum temperature25
    °C maximum temperature
  • 17°C minimum temperature17
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 1 hour of bright sunshine1
    hour of sunshine
  • UV (maximum) index 4 (Moderate)4
    UV index (Moderate)
  • 79% chance of some rain79
    % chance of some rain
  • 10-20 mm of rainfall expected<20
    mm of rainfall expected
  • 25°C wind chill25
    °C wind chill
  • Light breeze of 7 kph from the South7
    kph wind from S

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Connecticut weather for Thursday 19th June 2025

Expect isolated thunderstorms in Connecticut with a maximum temperature of 31°C, moderate levels of heat & humidity, maximum UV of 7 (High) and 6 hours of bright sunshine. There are 10-20 mm of rainfall expected with 49% chance of some rain and a gentle breeze of 14 kph from the south-west.

  • 31°C maximum temperature31
    °C maximum temperature
  • 20°C minimum temperature20
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 6 hours of bright sunshine6
    hours of sunshine
  • UV (maximum) index 7 (High)7
    UV index (High)
  • 49% chance of some rain49
    % chance of some rain
  • 10-20 mm of rainfall expected<20
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Gentle breeze of 14 kph from the South-West14
    kph wind from SW

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Connecticut weather for Friday 20th June 2025

Expect scattered clouds in Connecticut with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 7 (High) and 13 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 10 kph from the west.

  • 28°C maximum temperature28
    °C maximum temperature
  • 19°C minimum temperature19
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 13 hours of bright sunshine13
    hours of sunshine
  • UV (maximum) index 7 (High)7
    UV index (High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Light breeze of 10 kph from the West10
    kph wind from W

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Connecticut weather for Saturday 21st June 2025

Expect scattered clouds in Connecticut with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 8 (Very High) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 8 kph from the west.

  • 29°C maximum temperature29
    °C maximum temperature
  • 18°C minimum temperature18
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 9 hours of bright sunshine9
    hours of sunshine
  • UV (maximum) index 8 (Very High)8
    UV index (Very High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Light breeze of 8 kph from the West8
    kph wind from W

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

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