St John weather live forecast

Today's maximum temperature in St John is expected to be 45°F. Select a day from the live weather forecast for St John, New Brunswick, Canada for more weather parameters.

5-day weather forecast updated at 04:00 on Monday 30th March 2026 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 Monday 30th March 2026

Expect mostly cloudy with light rain in St John, New Brunswick with a maximum temperature of 45°F, maximum UV of 2 (Low) and 3 hours of bright sunshine. There are 0-2 mm of rainfall expected with 48% chance of some rain and a fresh breeze of 18 mph from the south.

  • 45°F maximum temperature45
    °F maximum temperature
  • 34°F minimum temperature34
    °F minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • 3 hours of bright sunshine3
    hours of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 48% chance of some rain48
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • 36°F wind chill36
    °F wind chill
  • Fresh breeze of 18 mph from the South18
    mph wind from S

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St John weather for Tuesday 31st March 2026

Expect cloudy with sleet or snow in St John, New Brunswick with a maximum temperature of 41°F, maximum UV of 4 (Moderate) and 1 hour of bright sunshine. There are 2-5 mm of sleet/snow expected with 88% chance of some sleet or snow and a gentle breeze of 9 mph from the east.

  • 41°F maximum temperature41
    °F maximum temperature
  • 34°F minimum temperature34
    °F minimum temperature
  • Cloudy with sleet or snow
    cloudy with sleet or snow
  • 1 hour of bright sunshine1
    hour of sunshine
  • UV (maximum) index 4 (Moderate)4
    UV index (Moderate)
  • 88% chance of some sleet or snow88
    % chance of some sleet or snow
  • 2-5 mm of sleet/snow expected<5
    mm of sleet/snow expected
  • 36°F wind chill36
    °F wind chill
  • Gentle breeze of 9 mph from the East9
    mph wind from E

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St John weather for Wednesday 1st April 2026

Expect mostly cloudy with rain in St John, New Brunswick with a maximum temperature of 43°F, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 10-20 mm of rainfall expected with 91% chance of some rain and a gentle breeze of 11 mph from the north-west.

  • 43°F maximum temperature43
    °F maximum temperature
  • 32°F minimum temperature32
    °F minimum temperature
  • Mostly cloudy with rain
    mostly cloudy with rain
  • 1 hour of bright sunshine1
    hour of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 91% chance of some rain91
    % chance of some rain
  • 10-20 mm of rainfall expected<20
    mm of rainfall expected
  • 37°F wind chill37
    °F wind chill
  • Gentle breeze of 11 mph from the North-West11
    mph wind from NW

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St John weather for Thursday 2nd April 2026

Expect mostly cloudy with light snow in St John, New Brunswick with a maximum temperature of 36°F, maximum UV of 4 (Moderate) and 2 hours of bright sunshine. There are 0-2 cm of snow expected with 41% chance of some snow and a gentle breeze of 9 mph from the north-east.

  • 36°F maximum temperature36
    °F maximum temperature
  • 27°F minimum temperature27
    °F minimum temperature
  • Mostly cloudy with light snow
    mostly cloudy with light snow
  • 2 hours of bright sunshine2
    hours of sunshine
  • UV (maximum) index 4 (Moderate)4
    UV index (Moderate)
  • 41% chance of some snow41
    % chance of some snow
  • 0-2 cm of snow expected<2
    cm of snow expected
  • 28°F wind chill28
    °F wind chill
  • Gentle breeze of 9 mph from the North-East9
    mph wind from NE

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St John weather for Friday 3rd April 2026

Expect cloudy with some snow in St John, New Brunswick with a maximum temperature of 32°F and no hours of bright sunshine. There are 20-30 cm of snow expected with 98% chance of some snow and a gentle breeze of 11 mph from the east.

  • 32°F maximum temperature32
    °F maximum temperature
  • 28°F minimum temperature28
    °F minimum temperature
  • Cloudy with some snow
    cloudy with some snow
  • No hours of bright sunshine0
    hours of sunshine
  • No UV (maximum) index0
    UV index (None)
  • 98% chance of some snow98
    % chance of some snow
  • 20-30 cm of snow expected<30
    cm of snow expected
  • 25°F wind chill25
    °F wind chill
  • Gentle breeze of 11 mph from the East11
    mph wind from E

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