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St John weather live forecast
Tomorrow's maximum temperature in St John is expected to be 6°C.
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Tuesday
18th Mar -
Wednesday
19th Mar -
Thursday
20th Mar -
Friday
21st Mar -
Saturday
22nd Mar
5-day weather forecast updated at 04:00 on Tuesday 18th March 2025 GMT
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Recommended for New Brunswick
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 18th March 2025
Expect mostly cloudy with rain in St John, New Brunswick with a maximum temperature of 6°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 10-20 mm of rainfall expected with 78% chance of some rain and a moderate breeze of 21 kph from the north.
- °C maximum temperature
- °C minimum temperature
- mostly cloudy with rain
- hour of sunshine
- UV index (Low)
- % chance of some rain
- mm of rainfall expected
- °C wind chill
- kph wind from N
St John weather for Wednesday 19th March 2025
Expect clear skies in St John, New Brunswick with a maximum temperature of 7°C, maximum UV of 4 (Moderate) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 10 kph from the east.
- °C maximum temperature
- °C minimum temperature
- clear skies
- hours of sunshine
- UV index (Moderate)
- mm of rainfall expected
- °C wind chill
- kph wind from E
St John weather for Thursday 20th March 2025
Expect broken clouds in St John, New Brunswick with a maximum temperature of 7°C, maximum UV of 4 (Moderate) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the south-east.
- °C maximum temperature
- °C minimum temperature
- broken clouds
- hours of sunshine
- UV index (Moderate)
- mm of rainfall expected
- °C wind chill
- kph wind from SE
St John weather for Friday 21st March 2025
Expect cloudy with some rain in St John, New Brunswick with a maximum temperature of 6°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 10-20 mm of rainfall expected with 88% chance of some rain and a gentle breeze of 17 kph from the east.
- °C maximum temperature
- °C minimum temperature
- cloudy with some rain
- hours of sunshine
- UV index (Low)
- % chance of some rain
- mm of rainfall expected
- °C wind chill
- kph wind from E
St John weather for Saturday 22nd March 2025
Expect cloudy with sleet or snow in St John, New Brunswick with a maximum temperature of 4°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 20-30 mm of sleet/snow expected with 74% chance of some sleet or snow and a moderate breeze of 23 kph from the north-west.
- °C maximum temperature
- °C minimum temperature
- cloudy with sleet or snow
- hours of sunshine
- UV index (Low)
- % chance of some sleet or snow
- mm of sleet/snow expected
- °C wind chill
- kph wind from NW
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Metric (°C / mm) | Imperial (°F / inches)
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