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Canada weather

Weather in Markham for October 2026

Your guide to Markham weather in October - trends and predictions

    Temperatures

  • In general, the average temperature in Markham at the beginning of October is 21.4 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 12.1 °C by the end of October.

    • Rain 🌧️

  • The climate of Markham in October is notably wet, with an average of 13 rainy days, and a total of 111.1 mm of precipitation.

    • More

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

Average dry days
18
Dry days
Average rainy days
13
Rainy days
Average snowy days
0
Snow days
Average temperatures
15°/7°
Temperatures
Average wind speed
19 km/h
Avg max wind
Average humidity
74 %
Avg humidity

Markham Weather October

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

Temperatures trend during October in Markham

See the weather trend as well as the moving average line

October weather in Markham day by day

Click on a date for more information
September November
Date Weather Temperatures Rain UV More
1 Oct. Partly cloudy
Partly cloudy
 22° /10° 0 mm 6
2 Oct. Cloudy
Cloudy
 21° /11° 4.4 mm 5
3 Oct. Mist
Mist
 25° /12° 0 mm 6
4 Oct. Mist
Mist
 23° /12° 0 mm 5
5 Oct. Mist
Mist
 22° /12° 0.6 mm 5
6 Oct. Heavy rain
Heavy rain
 22° /12° 14.5 mm 5
7 Oct. Moderate or heavy rain with thunder
Moderate or heavy rain with thunder
 15° /9° 8 mm 3
8 Oct. Patchy rain possible
Patchy rain possible
 13° /6° 0.2 mm 3
9 Oct. Patchy rain possible
Patchy rain possible
 13° /4° 0.1 mm 3
10 Oct. Partly cloudy
Partly cloudy
 13° /4° 0 mm 4
11 Oct. Patchy rain possible
Patchy rain possible
 16° /6° 16.7 mm 4
12 Oct. Overcast
Overcast
 16° /9° 0 mm 4
13 Oct. Overcast
Overcast
 13° /6° 0 mm 3
14 Oct. Patchy rain possible
Patchy rain possible
 14° /6° 0.2 mm 3
15 Oct. Overcast
Overcast
 11° /4° 0.1 mm 3
16 Oct. Overcast
Overcast
 14° /3° 0.1 mm 4
17 Oct. Overcast
Overcast
 13° /3° 2.2 mm 3
18 Oct. Overcast
Overcast
 17° /6° 3.7 mm 4
19 Oct. Light rain
Light rain
 18° /9° 18.1 mm 4
20 Oct. Light rain shower
Light rain shower
 16° /8° 12.8 mm 4
21 Oct. Patchy rain possible
Patchy rain possible
 16° /7° 1.3 mm 4
22 Oct. Light sleet showers
Light sleet showers
 12° /7° 5.6 mm 3
23 Oct. Cloudy
Cloudy
 14° /5° 1.6 mm 3
24 Oct. Thundery outbreaks possible
Thundery outbreaks possible
 12° /4° 0.2 mm 3
25 Oct. Light rain
Light rain
 13° /7° 0.9 mm 3
26 Oct. Light rain
Light rain
 12° /6° 0.7 mm 3
27 Oct. Patchy rain possible
Patchy rain possible
 13° /6° 0.5 mm 4
28 Oct. Overcast
Overcast
 12° /2° 0.2 mm 3
29 Oct. Moderate rain
Moderate rain
 11° /2° 7 mm 3
30 Oct. Light drizzle
Light drizzle
 11° /5° 11.1 mm 3
31 Oct. Patchy rain possible
Patchy rain possible
 13° /6° 0.3 mm 4
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Important Notice
Our weather forecast for Markham 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 Markham forecast closer to your planned date for the most up-to-date weather information.
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Markham in October - FAQ

What are the expected maximum and minimum temperatures in Markham 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 Markham during October?

Significant rainfall exceeding 111.1 mm is expected in Markham during October, occurring over more than 13 days. Preparing for wet conditions is recommended in your planning.

What are the typical wind conditions in Markham during October?

The average wind speed in Markham during October is 19 km/h, suggesting breezy to windy conditions, depending on your activities.

October rainfall patterns in Markham

Explore the daily rainfall trends and prepare for Markhams October weather 💧
Typically, Markham has 13 rainy days in October with a total of 111.1 mm of rainfall.

UV exposure in Markham during October

Stay informed about UV levels for safe outdoor activities throughout the month of October ☀️

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Get accurate weather forecasts for Markham, located at latitude 43.867 and longitude -79.266. Stay updated with localized weather information tailored for Markham.

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