St John weather live forecast

Tomorrow's maximum temperature in St John is expected to be 61°F.

5-day weather forecast updated at 04:00 on Sunday 15th 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 15th June 2025

Expect sunshine and showers in St John, New Brunswick with a maximum temperature of 61°F, maximum UV of 5 (Moderate) and 7 hours of bright sunshine. There are 0-2 mm of rainfall expected with 2% chance of some rain and a gentle breeze of 10 mph from the south-west.

  • 61°F maximum temperature61
    °F maximum temperature
  • 43°F minimum temperature43
    °F 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)
  • 2% chance of some rain2
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Gentle breeze of 10 mph from the South-West10
    mph wind from SW

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St John weather for Monday 16th June 2025

Expect scattered clouds in St John, New Brunswick with a maximum temperature of 61°F, maximum UV of 7 (High) and 13 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 11 mph from the south-west.

  • 61°F maximum temperature61
    °F maximum temperature
  • 46°F minimum temperature46
    °F 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
  • 61°F wind chill61
    °F wind chill
  • Gentle breeze of 11 mph from the South-West11
    mph 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 63°F, maximum UV of 7 (High) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 11 mph from the south-west.

  • 63°F maximum temperature63
    °F maximum temperature
  • 48°F minimum temperature48
    °F minimum temperature
  • Broken clouds
    broken clouds
  • 7 hours of bright sunshine7
    hours of sunshine
  • UV (maximum) index 7 (High)7
    UV index (High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 63°F wind chill63
    °F wind chill
  • Gentle breeze of 11 mph from the South-West11
    mph 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 63°F, maximum UV of 7 (High) and 2 hours of bright sunshine. There are 2-5 mm of rainfall expected with 28% chance of some rain and a gentle breeze of 11 mph from the south.

  • 63°F maximum temperature63
    °F maximum temperature
  • 54°F minimum temperature54
    °F minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • 2 hours of bright sunshine2
    hours of sunshine
  • UV (maximum) index 7 (High)7
    UV index (High)
  • 28% chance of some rain28
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • 63°F wind chill63
    °F wind chill
  • Gentle breeze of 11 mph from the South11
    mph wind from S

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St John weather for Thursday 19th June 2025

Expect overcast with light rain in St John, New Brunswick with a maximum temperature of 64°F, maximum UV of 3 (Moderate) and no hours of bright sunshine. There are 10-20 mm of rainfall expected with 58% chance of some rain and a gentle breeze of 9 mph from the south.

  • 64°F maximum temperature64
    °F maximum temperature
  • 55°F minimum temperature55
    °F minimum temperature
  • Overcast with light rain
    overcast with light rain
  • No hours of bright sunshine0
    hours of sunshine
  • UV (maximum) index 3 (Moderate)3
    UV index (Moderate)
  • 58% chance of some rain58
    % chance of some rain
  • 10-20 mm of rainfall expected<20
    mm of rainfall expected
  • 64°F wind chill64
    °F wind chill
  • Gentle breeze of 9 mph from the South9
    mph wind from S

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

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