Weather in Châteauguay for October 2025
Until now, October 2025 in Châteauguay has been nearly identical to the historical average, with a temperature of 15.1 °C (showing only a slight deviation of -0.3 °C).
The forecast for the upcoming days in Châteauguay predicts a temperature of 7.4 °C, which is slightly above the historical average.
In general, the average temperature in Châteauguay at the beginning of October is 22 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 10 °C by the end of October.
Châteauguay experiences moderate rainfall in October, with an average of 8 rainy days and a total precipitation of 234.3 mm.
New! Chat with our AI weatherman - it’s amazing and free.
Temperatures
Rain 🌧️
More
Châteauguay Weather October
Temperatures trend during October in Châteauguay
October weather in Châteauguay day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Oct. |  Mist | 19° /9° | 0 mm | 5 | |
| 2 Oct. |  Partly cloudy | 19° /10° | 2.8 mm | 5 | |
| 3 Oct. | Partly cloudy | 24° /9° | 0 mm | 6 | |
| 4 Oct. | Mist | 25° /12° | 0 mm | 5 | |
| 5 Oct. | Mist | 25° /13° | 0.9 mm | 6 | |
| 6 Oct. |  Light rain shower | 23° /11° | 2.3 mm | 5 | |
| 7 Oct. |  Moderate or heavy rain shower | 19° /12° | 54 mm | 4 | |
| 8 Oct. | Light rain shower | 14° /5° | 23.9 mm | 3 | |
| 9 Oct. | Light rain shower | 12° /4° | 0.2 mm | 3 | |
| 10 Oct. | Light rain shower | 13° /5° | 1.5 mm | 3 | |
| 11 Oct. |  Light drizzle | 15° /6° | 1.4 mm | 4 | |
| 12 Oct. | Fog | 14° /5° | 2.9 mm | 3 | |
| 13 Oct. | Patchy rain possible | 12° /4° | 0.1 mm | 3 | |
| 14 Oct. | Patchy rain possible | 13° /6° | 0.4 mm | 3 | |
| 15 Oct. |  Overcast | 10° /4° | 0.2 mm | 3 | |
| 16 Oct. | Patchy rain possible | 12° /4° | 0.1 mm | 3 | |
| 17 Oct. | Patchy rain possible | 13° /3° | 0 mm | 3 | |
| 18 Oct. | Patchy rain possible | 14° /3° | 0 mm | 4 | |
| 19 Oct. | Overcast | 16° /6° | 0 mm | 4 | |
| 20 Oct. | Patchy rain possible | 16° /10° | 14.1 mm | 4 | |
| 21 Oct. | Light rain | 17° /9° | 7.7 mm | 4 | |
| 22 Oct. |  Moderate rain | 14° /7° | 14.5 mm | 4 | |
| 23 Oct. | Patchy rain possible | 15° /8° | 1.7 mm | 4 | |
| 24 Oct. | Mist | 11° /3° | 2.1 mm | 3 | |
| 25 Oct. | Light rain | 12° /4° | 0.9 mm | 3 | |
| 26 Oct. | Patchy rain possible | 11° /6° | 1.5 mm | 3 | |
| 27 Oct. | Light rain | 12° /6° | 0.7 mm | 3 | |
| 28 Oct. | Light rain shower | 12° /1° | 0.2 mm | 3 | |
| 29 Oct. | Patchy rain possible | 10° /0° | 1.4 mm | 3 | |
| 30 Oct. | Moderate rain | 6° /3° | 11.8 mm | 0.3 | |
| 31 Oct. |  Heavy rain | 7° /4° | 105.7 mm | 0.1 | |
| Next | |||||
Châteauguay in October - FAQ
October rainfall patterns in Châteauguay
UV exposure in Châteauguay during October
Quick links
Where is Châteauguay?Get accurate weather forecasts for Châteauguay, located at latitude 45.383 and longitude -73.749. Stay updated with localized weather information tailored for Châteauguay.