Weather in Saint-Jean-sur-Richelieu for October 2025
Snowfall in Saint-Jean-sur-Richelieu during October is quite rare, with fewer than 2 snowy days on average.
According to Saint-Jean-sur-Richelieu snow forecast for October 2025, no snow is expected until the end of the month.Until now, October 2025 in Saint-Jean-sur-Richelieu has been nearly identical to the historical average, with a temperature of 14.7 °C (showing only a slight deviation of -0.5 °C).
The forecast for the next days in Saint-Jean-sur-Richelieu predicts temperatures to be around 7 °C, close to the historical average.
In general, the average temperature in Saint-Jean-sur-Richelieu at the beginning of October is 21.6 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 9.6 °C by the end of October.
The climate of Saint-Jean-sur-Richelieu in October is notably wet, with an average of 14 rainy days, and a total of 121.4 mm of precipitation.
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Saint-Jean-sur-Richelieu Weather October
Temperatures trend during October in Saint-Jean-sur-Richelieu
October weather in Saint-Jean-sur-Richelieu day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Oct. |  Mist | 19° /6° | 0 mm | 5 | |
| 2 Oct. |  Overcast | 18° /7° | 0 mm | 4 | |
| 3 Oct. |  Sunny | 24° /7° | 0 mm | 6 | |
| 4 Oct. | Mist | 25° /11° | 0 mm | 5 | |
| 5 Oct. |  Cloudy | 23° /13° | 4.2 mm | 5 | |
| 6 Oct. |  Patchy light drizzle | 22° /11° | 3.9 mm | 5 | |
| 7 Oct. |  Light rain shower | 20° /12° | 41.4 mm | 4 | |
| 8 Oct. | Light rain shower | 14° /5° | 31.3 mm | 3 | |
| 9 Oct. | Light rain shower | 12° /3° | 0.3 mm | 3 | |
| 10 Oct. | Light rain shower | 13° /4° | 1.6 mm | 3 | |
| 11 Oct. | Overcast | 15° /5° | 0.4 mm | 4 | |
| 12 Oct. | Patchy rain possible | 14° /4° | 3.6 mm | 3 | |
| 13 Oct. | Light rain shower | 11° /4° | 0.3 mm | 3 | |
| 14 Oct. | Patchy rain possible | 12° /5° | 3.2 mm | 3 | |
| 15 Oct. | Overcast | 9° /3° | 0.1 mm | 3 | |
| 16 Oct. | Overcast | 11° /3° | 0.1 mm | 3 | |
| 17 Oct. |  Partly cloudy | 13° /2° | 0 mm | 4 | |
| 18 Oct. | Patchy rain possible | 14° /3° | 0.1 mm | 4 | |
| 19 Oct. | Overcast | 18° /6° | 0 mm | 5 | |
| 20 Oct. | Patchy rain possible | 18° /8° | 13.4 mm | 4 | |
| 21 Oct. | Light rain shower | 17° /8° | 4.8 mm | 4 | |
| 22 Oct. |  Moderate rain | 15° /6° | 11.8 mm | 4 | |
| 23 Oct. | Overcast | 14° /7° | 1.1 mm | 3 | |
| 24 Oct. | Mist | 12° /2° | 1.3 mm | 3 | |
| 25 Oct. | Light drizzle | 11° /3° | 1.3 mm | 3 | |
| 26 Oct. | Patchy rain possible | 10° /6° | 0.9 mm | 3 | |
| 27 Oct. | Light drizzle | 11° /6° | 0.5 mm | 3 | |
| 28 Oct. | Light rain shower | 12° /1° | 0.2 mm | 3 | |
| 29 Oct. | Patchy rain possible | 9° /-1° | 1.7 mm | 2 | |
| 30 Oct. | Moderate rain | 7° /3° | 14.2 mm | 0.3 | |
| 31 Oct. |  Heavy rain | 7° /4° | 76.7 mm | 0.1 | |
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Saint-Jean-sur-Richelieu in October - FAQ
October rainfall patterns in Saint-Jean-sur-Richelieu
UV exposure in Saint-Jean-sur-Richelieu during October
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Where is Saint-Jean-sur-Richelieu?Get accurate weather forecasts for Saint-Jean-sur-Richelieu, located at latitude 45.307 and longitude -73.263. Stay updated with localized weather information tailored for Saint-Jean-sur-Richelieu.