St John weather live forecast

Tomorrow's maximum temperature in St John is expected to be 15°C.

5-day weather forecast updated at 04:00 on Saturday 7th 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 Saturday 7th June 2025

Expect cloudy with some 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 20-30 mm of rainfall expected with 98% chance of some rain and a light breeze of 11 kph from the south.

  • 15°C maximum temperature15
    °C maximum temperature
  • 12°C minimum temperature12
    °C minimum temperature
  • Cloudy with some rain
    cloudy with some rain
  • No hours of bright sunshine0
    hours of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 98% chance of some rain98
    % chance of some rain
  • 20-30 mm of rainfall expected<30
    mm of rainfall expected
  • 15°C wind chill15
    °C wind chill
  • Light breeze of 11 kph from the South11
    kph wind from S

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St John weather for Sunday 8th June 2025

Expect mostly cloudy with rain in St John, New Brunswick with a maximum temperature of 19°C, maximum UV of 5 (Moderate) and 6 hours of bright sunshine. There are 5-10 mm of rainfall expected with 18% chance of some rain and a gentle breeze of 15 kph from the north.

  • 19°C maximum temperature19
    °C maximum temperature
  • 11°C minimum temperature11
    °C minimum temperature
  • Mostly cloudy with rain
    mostly cloudy with rain
  • 6 hours of bright sunshine6
    hours of sunshine
  • UV (maximum) index 5 (Moderate)5
    UV index (Moderate)
  • 18% chance of some rain18
    % chance of some rain
  • 5-10 mm of rainfall expected<10
    mm of rainfall expected
  • 19°C wind chill19
    °C wind chill
  • Gentle breeze of 15 kph from the North15
    kph wind from N

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St John weather for Monday 9th June 2025

Expect clear skies in St John, New Brunswick with a maximum temperature of 18°C, maximum UV of 7 (High) and 16 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the south-east.

  • 18°C maximum temperature18
    °C maximum temperature
  • 9°C minimum temperature9
    °C minimum temperature
  • Clear skies
    clear skies
  • 16 hours of bright sunshine16
    hours of sunshine
  • UV (maximum) index 7 (High)7
    UV index (High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 18°C wind chill18
    °C wind chill
  • Gentle breeze of 14 kph from the South-East14
    kph wind from SE

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St John weather for Tuesday 10th June 2025

Expect sunshine and showers in St John, New Brunswick with a maximum temperature of 16°C, maximum UV of 5 (Moderate) and 7 hours of bright sunshine. There are 0-2 mm of rainfall expected with 41% chance of some rain and a light breeze of 11 kph from the south-east.

  • 16°C maximum temperature16
    °C maximum temperature
  • 9°C minimum temperature9
    °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)
  • 41% chance of some rain41
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    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 Wednesday 11th June 2025

Expect mostly cloudy with light rain in St John, New Brunswick with a maximum temperature of 17°C, maximum UV of 5 (Moderate) and 1 hour of bright sunshine. There are 2-5 mm of rainfall expected with 55% chance of some rain and a gentle breeze of 15 kph from the south-west.

  • 17°C maximum temperature17
    °C maximum temperature
  • 12°C minimum temperature12
    °C minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • 1 hour of bright sunshine1
    hour of sunshine
  • UV (maximum) index 5 (Moderate)5
    UV index (Moderate)
  • 55% chance of some rain55
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • 17°C wind chill17
    °C wind chill
  • Gentle breeze of 15 kph from the South-West15
    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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