Weather forecast for 10 daysMarkham, Canada

Weather forecast for the weekend

Saturday 17. Oct 2026

  • 9°C
  • 3°C
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0mm
  • Wind: 16km/hNW 305°
  • Humidity: 47%
  • UV index: 4
  • Sunrise: 7:34 am EDT
  • Sunset: 6:30 pm EDT
  • ▼
On Saturday, October 17, conditions remain stable and sunny, with little cloud presence.
The highest forecasted temperature is a brisk 9°C, while the lowest temperature will be a cold 3°C.
Today, the expected high temperature is lower and fits better with November's average than with October's usual.
Sunrise was at 7:34 am and sunset will be at 6:30 pm; the daylight will last for 10h and 56min.

Sunday 18. Oct 2026

  • 17°C
  • 6°C
Sunny
Sunny
  • Precip. probability: 7%
  • Precipitation: 0mm
  • Wind: 20km/hSW 232°
  • Humidity: 55%
  • UV index: 3
  • Sunrise: 7:35 am EDT
  • Sunset: 6:29 pm EDT
  • ▼
Tomorrow, skies will stay clear and sunny.
The temperature variation is expected to range from a maximum of a comfortable 17°C to a minimum of a frosty 6°C.
The temperature of 17°C aligns more with what is typical in September than what is normal in October.
Sunrise will be at 7:35 am and sunset at 6:29 pm; tomorrow's daylight will last for 10h and 53min.

10-day overview

Daily temperatures

Warmest day: Monday 19°C.
Coldest day: today 9°C.

Chance of precipitation

Highest chance: Monday 26.10. 13%.

Long-term weather forecast

  • Saturday
  • 17. Oct 2026
  • 9°C
  • 3°C
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0mm
  • Wind: 16km/hNW 305°
  • Humidity: 47%
  • UV index: 4
  • Sunrise: 7:34 am EDT
  • Sunset: 6:30 pm EDT
  • ▼
  • Sunday
  • 18. Oct 2026
  • 17°C
  • 6°C
Sunny
Sunny
  • Precip. probability: 7%
  • Precipitation: 0mm
  • Wind: 20km/hSW 232°
  • Humidity: 55%
  • UV index: 3
  • Sunrise: 7:35 am EDT
  • Sunset: 6:29 pm EDT
  • ▼
  • Monday
  • 19. Oct 2026
  • 19°C
  • 6°C
Sunny
Sunny
  • Precip. probability: 3%
  • Precipitation: 0mm
  • Wind: 10km/hWSW 244°
  • Humidity: 59%
  • UV index: 3
  • Sunrise: 7:37 am EDT
  • Sunset: 6:27 pm EDT
  • ▼
  • Tuesday
  • 20. Oct 2026
  • 17°C
  • 4°C
Sunny
Sunny
  • Precip. probability: 7%
  • Precipitation: 0mm
  • Wind: 10km/hNE 51°
  • Humidity: 67%
  • UV index: 3
  • Sunrise: 7:38 am EDT
  • Sunset: 6:25 pm EDT
  • ▼
  • Wednesday
  • 21. Oct 2026
  • 15°C
  • 4°C
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0mm
  • Wind: 8km/hE 93°
  • Humidity: 66%
  • UV index: 3
  • Sunrise: 7:39 am EDT
  • Sunset: 6:24 pm EDT
  • ▼
  • Thursday
  • 22. Oct 2026
  • 18°C
  • 5°C
Mostly Sunny
Mostly Sunny
  • Precip. probability: 6%
  • Precipitation: 0mm
  • Wind: 9km/hNNW 344°
  • Humidity: 69%
  • UV index: 3
  • Sunrise: 7:40 am EDT
  • Sunset: 6:22 pm EDT
  • ▼
  • Friday
  • 23. Oct 2026
  • 15°C
  • 3°C
Sunny
Sunny
  • Precip. probability: 6%
  • Precipitation: 0mm
  • Wind: 9km/hNE 56°
  • Humidity: 62%
  • UV index: 3
  • Sunrise: 7:42 am EDT
  • Sunset: 6:21 pm EDT
  • ▼
  • Saturday
  • 24. Oct 2026
  • 14°C
  • 4°C
Mostly Sunny
Mostly Sunny
  • Precip. probability: 6%
  • Precipitation: 0mm
  • Wind: 11km/hENE 64°
  • Humidity: 66%
  • UV index: 3
  • Sunrise: 7:43 am EDT
  • Sunset: 6:19 pm EDT
  • ▼
  • Sunday
  • 25. Oct 2026
  • 16°C
  • 7°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 7%
  • Precipitation: 0mm
  • Wind: 11km/hSE 136°
  • Humidity: 68%
  • UV index: 3
  • Sunrise: 7:44 am EDT
  • Sunset: 6:18 pm EDT
  • ▼
  • Monday
  • 26. Oct 2026
  • 17°C
  • 7°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 13%
  • Precipitation: 0mm
  • Wind: 12km/hWNW 301°
  • Humidity: 68%
  • UV index: 3
  • Sunrise: 7:46 am EDT
  • Sunset: 6:16 pm EDT
  • ▼
For the next ten days, primarily bright and occasionally cloudy weather is anticipated.
Rain is not predicted in Markham in the upcoming period.
Noticeable swings in temperature are expected in the next ten days. The temperature is expected to swing from 9°C up to 19°C, while the forecast minimum temperature falls between 3°C and 7°C.
Monday will be the warmest day, with a maximum temperature of 19°C; today is the coldest day, with a maximum temperature of 9°C.
Updated: Oct 17, 2026 @ 16:20:09 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Saturday, sunny skies and pleasant visibility are expected.

Today, the highest temperature will be 9°C, while the lowest temperature will be 3°C.
The highest temperature will be moderately lower than the average maximum of 13.2°C in October. The lowest temperature today will be also slightly cooler than the average low temperature.

On Saturday, in Markham, sunrise was at 7:34 am and sunset will be at 6:30 pm (EDT).

In Markham, Canada, the length of the day today will be 10h and 56min.

On Sunday, the weather remains calm, bright, and sunny.

Tomorrow, the highest temperature will be 17°C, while the lowest temperature will be 6°C.
The highest temperature tomorrow will be slightly warmer than the average maximum temperature in October. The lowest temperature tomorrow will be in line with the average low temperature.

On Sunday, in Markham, sunrise will be at 7:35 am and sunset at 6:29 pm (EDT).

In Markham, the length of the day tomorrow will be 10h and 53min.