Saint John Weather Update – November 15–21, 2026
A Sunny Break Ahead for Saint John and Southern New Brunswick
Saint John residents can look forward to a noticeable improvement in the weather next week. Sunday may bring showers and a few flurries, but sunshine is expected to return Monday and continue through much of the week.
Temperatures will gradually climb, with daytime highs approaching 9°C by Wednesday and Thursday.
Saint John Weekly Weather Forecast
| Day | Forecast | High | Low |
|---|---|---|---|
| Sunday, Nov. 15 | Cloudy, showers, possible flurries | 5°C | -2°C |
| Monday, Nov. 16 | Mix of sun and clouds | 6°C | -2°C |
| Tuesday, Nov. 17 | Sunny | 8°C | -1°C |
| Wednesday, Nov. 18 | Mainly sunny | 9°C | 4°C |
| Thursday, Nov. 19 | Sun and clouds | 9°C | 4°C |
| Friday, Nov. 20 | Mix of sun and clouds | 8°C | — |
| Saturday, Nov. 21 | Extended forecast not yet confirmed | — | — |
Temperatures based on Environment Canada’s November 14 extended forecast. Saturday’s details are not yet included in that bulletin.
Sunday Weather Warning
Sunday could bring unsettled conditions, including:
- A 60% chance of showers.
- A possibility of a few flurries, particularly over higher terrain.
- Risk of freezing drizzle early Sunday morning.
- Overnight temperatures falling to approximately -2°C.
Motorists should watch for slippery conditions during the early morning hours.
A Welcome Break from November Rain
The good news is that Monday should bring a mixture of sunshine and clouds. Tuesday is expected to be sunny, with temperatures reaching 8°C.
Wednesday and Thursday could be particularly pleasant for November, with highs around 9°C.
Friday is also expected to bring a mixture of sunshine and clouds.
Preparing for Winter in Saint John
Although next week’s temperatures look relatively mild, overnight readings will remain close to or below freezing.
A few reminders:
- Check outdoor taps and hoses.
- Prepare vehicles for winter driving.
- Keep sidewalks and steps clear of ice.
- Protect sensitive outdoor plants.
- Watch for changing weather alerts.
Official Weather Information
For updated forecasts and weather warnings, visit:
Environment Canada:
https://weather.gc.ca/
The Weather Network:
https://www.theweathernetwork.com/ca
Your Local Weather Report
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Enjoy the sunshine when it arrives, stay warm, and have a safe week in Saint John and throughout Southern New Brunswick!