St John weather live forecast

Tomorrow's maximum temperature in St John is expected to be 16°C.

  • Saturday
    14th Jun
    Sunshine and showers (0-2 mm of rainfall expected)
  • Sunday
    15th Jun
    Sunshine and showers (0-2 mm of rainfall expected)
  • Monday
    16th Jun
    Broken clouds
  • Tuesday
    17th Jun
    Broken clouds
  • Wednesday
    18th Jun
    Mostly cloudy with light rain (0-2 mm of rainfall expected)

5-day weather forecast updated at 04:00 on Saturday 14th 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 14th June 2025

Expect sunshine and showers in St John, New Brunswick with a maximum temperature of 16°C, maximum UV of 4 (Moderate) and 7 hours of bright sunshine. There are 0-2 mm of rainfall expected with 3% chance of some rain and a light breeze of 11 kph from the south-west.

  • 16°C maximum temperature16
    °C maximum temperature
  • 6°C minimum temperature6
    °C minimum temperature
  • Sunshine and showers
    sunshine and showers
  • 7 hours of bright sunshine7
    hours of sunshine
  • UV (maximum) index 4 (Moderate)4
    UV index (Moderate)
  • 3% chance of some rain3
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • 16°C wind chill16
    °C wind chill
  • Light breeze of 11 kph from the South-West11
    kph wind from SW

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St John weather for Sunday 15th June 2025

Expect sunshine and showers in St John, New Brunswick with a maximum temperature of 16°C, maximum UV of 5 (Moderate) and 13 hours of bright sunshine. There are 0-2 mm of rainfall expected with 11% chance of some rain and a gentle breeze of 15 kph from the south-west.

  • 16°C maximum temperature16
    °C maximum temperature
  • 8°C minimum temperature8
    °C minimum temperature
  • Sunshine and showers
    sunshine and showers
  • 13 hours of bright sunshine13
    hours of sunshine
  • UV (maximum) index 5 (Moderate)5
    UV index (Moderate)
  • 11% chance of some rain11
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Gentle breeze of 15 kph from the South-West15
    kph wind from SW

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St John weather for Monday 16th June 2025

Expect broken clouds in St John, New Brunswick with a maximum temperature of 16°C, maximum UV of 7 (High) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 17 kph from the south-west.

  • 16°C maximum temperature16
    °C maximum temperature
  • 8°C minimum temperature8
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 6 hours of bright sunshine6
    hours of sunshine
  • UV (maximum) index 7 (High)7
    UV index (High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 16°C wind chill16
    °C wind chill
  • Gentle breeze of 17 kph from the South-West17
    kph wind from SW

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St John weather for Tuesday 17th June 2025

Expect broken clouds in St John, New Brunswick with a maximum temperature of 18°C, maximum UV of 8 (Very High) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the south-west.

  • 18°C maximum temperature18
    °C maximum temperature
  • 10°C minimum temperature10
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 5 hours of bright sunshine5
    hours of sunshine
  • UV (maximum) index 8 (Very High)8
    UV index (Very 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-West14
    kph wind from SW

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St John weather for Wednesday 18th June 2025

Expect mostly cloudy with light rain in St John, New Brunswick with a maximum temperature of 17°C, maximum UV of 2 (Low) and 1 hour of bright sunshine. There are 0-2 mm of rainfall expected with 20% chance of some rain and a gentle breeze of 18 kph from the south.

  • 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 2 (Low)2
    UV index (Low)
  • 20% chance of some rain20
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Gentle breeze of 18 kph from the South18
    kph wind from S

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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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