St John weather live forecast

Today's maximum temperature in St John is expected to be 9°C. Select a day from the live weather forecast for St John, New Brunswick, Canada for more weather parameters.

  • Tuesday
    10th Mar
    Broken clouds
  • Wednesday
    11th Mar
    Overcast with light rain (5-10 mm of rainfall expected)
  • Thursday
    12th Mar
    Mostly cloudy with rain (10-20 mm of rainfall expected)
  • Friday
    13th Mar
    Scattered clouds
  • Saturday
    14th Mar
    Mostly cloudy with snow (10-20 cm of snow expected)

5-day weather forecast updated at 04:00 on Tuesday 10th 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 Tuesday 10th March 2026

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 moderate breeze of 20 kph from the south.

  • 9°C maximum temperature9
    °C maximum temperature
  • 3°C minimum temperature3
    °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
  • 6°C wind chill6
    °C wind chill
  • Moderate breeze of 20 kph from the South20
    kph wind from S

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St John weather for Wednesday 11th March 2026

Expect overcast with light rain in St John, New Brunswick with a maximum temperature of 3°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 5-10 mm of rainfall expected with 91% chance of some rain and a moderate breeze of 21 kph from the east.

  • 3°C maximum temperature3
    °C maximum temperature
  • 0°C minimum temperature0
    °C minimum temperature
  • Overcast with light rain
    overcast with light rain
  • No hours of bright sunshine0
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 91% chance of some rain91
    % chance of some rain
  • 5-10 mm of rainfall expected<10
    mm of rainfall expected
  • -2°C wind chill-2
    °C wind chill
  • Moderate breeze of 21 kph from the East21
    kph wind from E

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St John weather for Thursday 12th March 2026

Expect mostly cloudy with rain in St John, New Brunswick with a maximum temperature of 7°C, maximum UV of 1 (Low) and 3 hours of bright sunshine. There are 10-20 mm of rainfall expected with 66% chance of some rain and a moderate breeze of 24 kph from the west.

  • 7°C maximum temperature7
    °C maximum temperature
  • -1°C minimum temperature-1
    °C minimum temperature
  • Mostly cloudy with rain
    mostly cloudy with rain
  • 3 hours of bright sunshine3
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 66% chance of some rain66
    % chance of some rain
  • 10-20 mm of rainfall expected<20
    mm of rainfall expected
  • 3°C wind chill3
    °C wind chill
  • Moderate breeze of 24 kph from the West24
    kph wind from W

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St John weather for Friday 13th March 2026

Expect scattered clouds in St John, New Brunswick with a maximum temperature of 1°C, maximum UV of 3 (Moderate) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 20 kph from the west.

  • 1°C maximum temperature1
    °C maximum temperature
  • -4°C minimum temperature-4
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 8 hours of bright sunshine8
    hours of sunshine
  • UV (maximum) index 3 (Moderate)3
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • -4°C wind chill-4
    °C wind chill
  • Moderate breeze of 20 kph from the West20
    kph wind from W

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St John weather for Saturday 14th March 2026

Expect mostly cloudy with snow in St John, New Brunswick with a maximum temperature of 4°C, maximum UV of 1 (Low) and 4 hours of bright sunshine. There are 10-20 cm of snow expected with 83% chance of some snow and a moderate breeze of 24 kph from the south-east.

  • 4°C maximum temperature4
    °C maximum temperature
  • -2°C minimum temperature-2
    °C minimum temperature
  • Mostly cloudy with snow
    mostly cloudy with snow
  • 4 hours of bright sunshine4
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 83% chance of some snow83
    % chance of some snow
  • 10-20 cm of snow expected<20
    cm of snow expected
  • -1°C wind chill-1
    °C wind chill
  • Moderate breeze of 24 kph from the South-East24
    kph wind from SE

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

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