Weather in Markham, Ontario
Wednesday 18 November 2026
7°
Broken clouds
Feels like 1°
- High
- 7°
- Low
- -1°
- Humidity
- 62%
- Wind
- 20 km/h
Temperature and rain / Markham
The coming days
High
16°
Low
-3°
Average high
9.1°
Average low
3.1°
Total rain
6.8 mm
Average rain
0.5 mm
Air quality - Markham
Particles and ozone
Good
6.00 µg/m³
0-1212-3535-5555+
The air is clean: enjoy the outdoors.
PM106.00µg/m³
Ozone47µg/m³
Data updated hourly
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Frequently asked questions
Quick answers about the weather in Markham
Tomorrow in Markham, expect Broken clouds ☁️, with:\n\n- High of 10°\n- Low of 4°
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Our data is updated regularly to give you the most reliable forecast.
Last updated: 2026-11-08