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Weather in Châteauguay for October 2026

Your guide to Châteauguay weather in October - trends and predictions

    Snow Forecast ❄️

  • Snowfall in Châteauguay during October is quite rare, with fewer than 2 snowy days on average.
    According to Châteauguay snow forecast for October 2026, no snow is expected at the beginning of the month.

    • Temperatures

  • The forecast for the first days of October 2026 in Châteauguay predicts a temperature of 15.8 °C, which is slightly above the historical average.

  • In general, the average temperature in Châteauguay at the beginning of October is 14.7 °C. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 11.7 °C by the end of October.

    • Rain 🌧️

  • Châteauguay in October brings notable rainfall, with an average of 16 rainy days and a total precipitation of 145.5 mm.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
14
Dry days
Average rainy days
16
Rainy days
Average snowy days
1
Snow days
Average temperatures
15°/7°
Temperatures
Average wind speed
18 km/h
Avg max wind
Average humidity
75 %
Avg humidity

Châteauguay Weather October

Move between months or click on a day
September
November
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Patchy rain possible
18°
2
Sunny
17°
3
Overcast
15°
4
Light rain shower
15°
5
Light rain shower
14°
6
Sunny
11°
7
Overcast
13°
8
Overcast
13°
9
Sunny
15°
10
Light rain shower
13°
11
Light drizzle
15°
12
Fog
14°
13
Patchy rain possible
12°
14
Patchy rain possible
13°
15
Overcast
10°
16
Patchy rain possible
12°
17
Patchy rain possible
13°
18
Patchy rain possible
14°
19
Overcast
16°
20
Patchy rain possible
16°
21
Light rain
17°
22
Moderate rain
14°
23
Patchy rain possible
15°
24
Mist
11°
25
Light rain
12°
26
Patchy rain possible
11°
27
Light rain
12°
28
Light rain shower
12°
29
Patchy rain possible
10°
30
Light sleet showers
11°
31
Mist
14°

Temperatures trend during October in Châteauguay

See the weather trend as well as the moving average line

October weather in Châteauguay day by day

Click on a date for more information
September November
Date Weather Temperatures Rain Snow More
1 Oct. Patchy rain possible
Patchy rain possible
 18° /15° 0.8 mm 0 cm
2 Oct. Sunny
Sunny
 17° /11° 0 mm 0 cm
3 Oct. Overcast
Overcast
 15° /9° 2.8 mm 0 cm
4 Oct. Light rain shower
Light rain shower
 15° /11° 15.5 mm 0 cm
5 Oct. Light rain shower
Light rain shower
 14° /6° 23.5 mm 0 cm
6 Oct. Sunny
Sunny
 11° /5° 2.9 mm 0 cm
7 Oct. Overcast
Overcast
 13° /4° 0 mm 0 cm
8 Oct. Overcast
Overcast
 13° /8° 0 mm 0 cm
9 Oct. Sunny
Sunny
 15° /7° 0 mm 0 cm
10 Oct. Light rain shower
Light rain shower
 13° /5° 1.5 mm 0 cm
11 Oct. Light drizzle
Light drizzle
 15° /6° 1.4 mm 0 cm
12 Oct. Fog
Fog
 14° /5° 2.9 mm 0 cm
13 Oct. Patchy rain possible
Patchy rain possible
 12° /4° 0.1 mm 0 cm
14 Oct. Patchy rain possible
Patchy rain possible
 13° /6° 0.4 mm 0 cm
15 Oct. Overcast
Overcast
 10° /4° 0.2 mm 0 cm
16 Oct. Patchy rain possible
Patchy rain possible
 12° /4° 0.1 mm 0 cm
17 Oct. Patchy rain possible
Patchy rain possible
 13° /3° 0 mm 0 cm
18 Oct. Patchy rain possible
Patchy rain possible
 14° /3° 0 mm 0 cm
19 Oct. Overcast
Overcast
 16° /6° 0 mm 0 cm
20 Oct. Patchy rain possible
Patchy rain possible
 16° /10° 14.1 mm 0 cm
21 Oct. Light rain
Light rain
 17° /9° 7.7 mm 0 cm
22 Oct. Moderate rain
Moderate rain
 14° /7° 14.5 mm 0 cm
23 Oct. Patchy rain possible
Patchy rain possible
 15° /8° 1.7 mm 0 cm
24 Oct. Mist
Mist
 11° /3° 2.1 mm 0 cm
25 Oct. Light rain
Light rain
 12° /4° 0.9 mm 0 cm
26 Oct. Patchy rain possible
Patchy rain possible
 11° /6° 1.5 mm 0 cm
27 Oct. Light rain
Light rain
 12° /6° 0.7 mm 0 cm
28 Oct. Light rain shower
Light rain shower
 12° /1° 0.2 mm 0 cm
29 Oct. Patchy rain possible
Patchy rain possible
 10° /0° 1.4 mm 0 cm
30 Oct. Light sleet showers
Light sleet showers
 11° /3° 9.4 mm 2.7 cm
31 Oct. Mist
Mist
 14° /6° 0.4 mm 0 cm
Next
Important Notice
Our weather forecast for Châteauguay in October is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Châteauguay forecast closer to your planned date for the most up-to-date weather information.
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Châteauguay in October - FAQ

What are the expected maximum and minimum temperatures in Châteauguay during October?
During October, expect a variety of temperatures with highs around 15° and lows near 7°, suitable for diverse activities and preferences.

How much rainfall should be expected in Châteauguay during October?
Significant rainfall exceeding 145.5 mm is expected in Châteauguay during October, occurring over more than 16 days. Preparing for wet conditions is recommended in your planning.

Will it snow in Châteauguay in October 2026?
Châteauguay typically sees 2.7 cm of snowfall during October.

What are the typical wind conditions in Châteauguay during October?
The average wind speed in Châteauguay during October is 18 km/h, suggesting breezy to windy conditions, depending on your activities.

Châteauguay snow forecast October 2026

Track daily snowfall levels and discover Châteauguay’s snowy potential this October ❄️
On average, Châteauguay sees 1 snowy days during October, with approximately 2.7 cm of total snowfall.

October rainfall patterns in Châteauguay

Explore the daily rainfall trends and prepare for Châteauguays October weather 💧
Typically, Châteauguay has 16 rainy days in October with a total of 145.5 mm of rainfall.

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Location coordinates 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.

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