St John weather live forecast

Tomorrow's maximum temperature in St John is expected to be 10°C.

  • Friday
    18th Apr
    Scattered clouds
  • Saturday
    19th Apr
    Mostly cloudy with rain (5-10 mm of rainfall expected)
  • Sunday
    20th Apr
    Broken clouds
  • Monday
    21st Apr
    Sunshine and showers (5-10 mm of rainfall expected)
  • Tuesday
    22nd Apr
    Cloudy with some rain (5-10 mm of rainfall expected)

5-day weather forecast updated at 04:00 on Friday 18th April 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 Friday 18th April 2025

Expect scattered clouds in St John, New Brunswick with a maximum temperature of 10°C, maximum UV of 5 (Moderate) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 17 kph from the west.

  • 10°C maximum temperature10
    °C maximum temperature
  • 0°C minimum temperature0
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 9 hours of bright sunshine9
    hours of sunshine
  • UV (maximum) index 5 (Moderate)5
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 7°C wind chill7
    °C wind chill
  • Gentle breeze of 17 kph from the West17
    kph wind from W

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St John weather for Saturday 19th April 2025

Expect mostly cloudy with rain in St John, New Brunswick with a maximum temperature of 8°C, maximum UV of 4 (Moderate) and 2 hours of bright sunshine. There are 5-10 mm of rainfall expected with 79% chance of some rain and a moderate breeze of 24 kph from the south.

  • 8°C maximum temperature8
    °C maximum temperature
  • 4°C minimum temperature4
    °C minimum temperature
  • Mostly cloudy with rain
    mostly cloudy with rain
  • 2 hours of bright sunshine2
    hours of sunshine
  • UV (maximum) index 4 (Moderate)4
    UV index (Moderate)
  • 79% chance of some rain79
    % chance of some rain
  • 5-10 mm of rainfall expected<10
    mm of rainfall expected
  • 5°C wind chill5
    °C wind chill
  • Moderate breeze of 24 kph from the South24
    kph wind from S

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St John weather for Sunday 20th April 2025

Expect broken clouds in St John, New Brunswick with a maximum temperature of 9°C, maximum UV of 4 (Moderate) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 34 kph from the north-west.

  • 9°C maximum temperature9
    °C maximum temperature
  • 4°C minimum temperature4
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 7 hours of bright sunshine7
    hours of sunshine
  • UV (maximum) index 4 (Moderate)4
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 5°C wind chill5
    °C wind chill
  • Fresh breeze of 34 kph from the North-West34
    kph wind from NW

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St John weather for Monday 21st April 2025

Expect sunshine and showers in St John, New Brunswick with a maximum temperature of 11°C, maximum UV of 6 (High) and 8 hours of bright sunshine. There are 5-10 mm of rainfall expected with 24% chance of some rain and a moderate breeze of 25 kph from the north-west.

  • 11°C maximum temperature11
    °C maximum temperature
  • 2°C minimum temperature2
    °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)
  • 24% chance of some rain24
    % chance of some rain
  • 5-10 mm of rainfall expected<10
    mm of rainfall expected
  • 11°C wind chill11
    °C wind chill
  • Moderate breeze of 25 kph from the North-West25
    kph wind from NW

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St John weather for Tuesday 22nd April 2025

Expect cloudy with some rain in St John, New Brunswick with a maximum temperature of 5°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 5-10 mm of rainfall expected with 93% chance of some rain and a gentle breeze of 14 kph from the south-east.

  • 5°C maximum temperature5
    °C maximum temperature
  • 3°C minimum temperature3
    °C minimum temperature
  • Cloudy with some rain
    cloudy with some rain
  • No hours of bright sunshine0
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 93% chance of some rain93
    % chance of some rain
  • 5-10 mm of rainfall expected<10
    mm of rainfall expected
  • 2°C wind chill2
    °C wind chill
  • Gentle breeze of 14 kph from the South-East14
    kph wind from SE

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

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