Saint John Airport (YSJ) 15 Day Weather Forecast, Saint John Canada
Current weather conditions and 15 day weather forecast for Saint John Airport in Saint John, Canada including weather daily high/low temperature, warnings, chance of precipitation, pressure, humidity/wind chill, rain, wind speed, cloud, pressure, and UV index.
Current weather conditions at YSJ
| 13 September 2026 Sun 13.5 ° C ( 56.4°F )  Overcast |
Feels Like : 11 ° C / 51.8°F Humidity : % 79 Pressure : 1018 mb Wind Speed : 14 kmph / 8.7 miles from S 
Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 100 |
15-day weather forecast for Saint John Airport, Saint John, Canada
| Date | Weather forecast | Low temperature | High temperature | Average Temperature | Humidity | Wind | Chance of rain |
|---|---|---|---|---|---|---|---|
| 13 September 2026 Sun | Overcast |
11.6 ° C | 15.9 ° C | 13.2 ° C | % 91 | 19.8 km/h | 85% |
| 14 September 2026 Mon |  Light drizzle |
11.4 ° C | 16.7 ° C | 14.8 ° C | % 85 | 19.8 km/h | 79% |
| 15 September 2026 Tue |  Sunny |
6.9 ° C | 16.4 ° C | 11.3 ° C | % 68 | 11.5 km/h | 6% |
| 16 September 2026 Wed | Overcast |
9.6 ° C | 16 ° C | 12.6 ° C | % 75 | 14.4 km/h | 18% |
| 17 September 2026 Thu | Overcast |
11.3 ° C | 17.5 ° C | 14 ° C | % 82 | 15.1 km/h | 21% |
| 18 September 2026 Fri |  Partly Cloudy |
11.6 ° C | 18.3 ° C | 14.8 ° C | % 81 | 14.4 km/h | 60% |
| 19 September 2026 Sat | Sunny |
9.7 ° C | 16.3 ° C | 12.6 ° C | % 76 | 13.3 km/h | 11% |
| 20 September 2026 Sun | Overcast |
11.6 ° C | 13.1 ° C | 12.2 ° C | % 90 | 18 km/h | 66% |
| 21 September 2026 Mon | Sunny |
7.5 ° C | 13.5 ° C | 10.9 ° C | % 70 | 24.1 km/h | 8% |
| 22 September 2026 Tue | Sunny |
4.2 ° C | 12.7 ° C | 8.6 ° C | % 59 | 10.8 km/h | 6% |
| 23 September 2026 Wed | Overcast |
8.5 ° C | 13.3 ° C | 10.9 ° C | % 80 | 9.7 km/h | 24% |
| 24 September 2026 Thu | Sunny |
8.7 ° C | 16.3 ° C | 11.9 ° C | % 74 | 18 km/h | 10% |
| 25 September 2026 Fri | Sunny |
8.5 ° C | 16 ° C | 11.9 ° C | % 80 | 12.2 km/h | 9% |
| 26 September 2026 Sat | Sunny |
9.6 ° C | 16.7 ° C | 12.7 ° C | % 82 | 8.3 km/h | 11% |
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