St John weather live forecast

Tomorrow's maximum temperature in St John is expected to be 19°C.

  • Sunday
    8th Jun
    Sunshine and showers (10-20 mm of rainfall expected)
  • Monday
    9th Jun
    Broken clouds
  • Tuesday
    10th Jun
    Mostly cloudy with light rain (0-2 mm of rainfall expected)
  • Wednesday
    11th Jun
    Mostly cloudy with light rain (0-2 mm of rainfall expected)
  • Thursday
    12th Jun
    Sunshine and showers (0-2 mm of rainfall expected)

5-day weather forecast updated at 04:00 on Sunday 8th June 2025 GMT

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

St John weather forecast by day

Below are the detailed weather forecasts for St John for the next 5 days.

St John weather for Sunday 8th June 2025

Expect sunshine and showers in St John, New Brunswick with a maximum temperature of 19°C, maximum UV of 6 (High) and 9 hours of bright sunshine. There are 10-20 mm of rainfall expected with 19% chance of some rain and a gentle breeze of 16 kph from the north.

  • 19°C maximum temperature19
    °C maximum temperature
  • 11°C minimum temperature11
    °C minimum temperature
  • Sunshine and showers
    sunshine and showers
  • 9 hours of bright sunshine9
    hours of sunshine
  • UV (maximum) index 6 (High)6
    UV index (High)
  • 19% chance of some rain19
    % chance of some rain
  • 10-20 mm of rainfall expected<20
    mm of rainfall expected
  • 19°C wind chill19
    °C wind chill
  • Gentle breeze of 16 kph from the North16
    kph wind from N

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St John weather for Monday 9th June 2025

Expect broken clouds in St John, New Brunswick with a maximum temperature of 18°C, maximum UV of 6 (High) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 11 kph from the south-east.

  • 18°C maximum temperature18
    °C maximum temperature
  • 9°C minimum temperature9
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 3 hours of bright sunshine3
    hours of sunshine
  • UV (maximum) index 6 (High)6
    UV index (High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Light breeze of 11 kph from the South-East11
    kph wind from SE

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St John weather for Tuesday 10th June 2025

Expect mostly cloudy with light rain in St John, New Brunswick with a maximum temperature of 15°C, maximum UV of 2 (Low) and no hours of bright sunshine. There are 0-2 mm of rainfall expected with 33% chance of some rain and a light breeze of 12 kph from the south-east.

  • 15°C maximum temperature15
    °C maximum temperature
  • 9°C minimum temperature9
    °C minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • No hours of bright sunshine0
    hours of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 33% chance of some rain33
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Light breeze of 12 kph from the South-East12
    kph wind from SE

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St John weather for Wednesday 11th June 2025

Expect mostly cloudy with light rain in St John, New Brunswick with a maximum temperature of 18°C, maximum UV of 6 (High) and 3 hours of bright sunshine. There are 0-2 mm of rainfall expected with 38% chance of some rain and a gentle breeze of 17 kph from the south-west.

  • 18°C maximum temperature18
    °C maximum temperature
  • 12°C minimum temperature12
    °C minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • 3 hours of bright sunshine3
    hours of sunshine
  • UV (maximum) index 6 (High)6
    UV index (High)
  • 38% chance of some rain38
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • 18°C wind chill18
    °C wind chill
  • Gentle breeze of 17 kph from the South-West17
    kph wind from SW

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St John weather for Thursday 12th June 2025

Expect sunshine and showers in St John, New Brunswick with a maximum temperature of 20°C, maximum UV of 6 (High) and 8 hours of bright sunshine. There are 0-2 mm of rainfall expected with 35% chance of some rain and a moderate breeze of 22 kph from the south-west.

  • 20°C maximum temperature20
    °C maximum temperature
  • 11°C minimum temperature11
    °C minimum temperature
  • Sunshine and showers
    sunshine and showers
  • 8 hours of bright sunshine8
    hours of sunshine
  • UV (maximum) index 6 (High)6
    UV index (High)
  • 35% chance of some rain35
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Moderate breeze of 22 kph from the South-West22
    kph wind from SW

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  • Destinations across Europe, Americas, Asia, Africa & beyond
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Metric (°C / mm)  |  Imperial (°F / inches)

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