Live Weather & Forecast
Weather in Markham
Ontario, Canada · Real-time conditions & 3-day outlook
6°C
Feels like 4°C
44°F / Feels 39°F
Sunny
Markham, Ontario
🌙 Nighttime
Updated: 2026-04-24 20:15
Humidity
56%
Wind
12.6 km/h ESE
Wind Gust
19.8 km/h
Pressure
1011 mb
Visibility
14 km
UV Index
0
(Low)
Precipitation
0 mm
Cloud Cover
0%
Dew Point
-1.9°C
Wind Degree
111°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
201.9 μg/m³
NO₂
5.9 μg/m³
O₃
88 μg/m³
SO₂
2 μg/m³
PM 2.5
2.8 μg/m³
PM 10
3.1 μg/m³
Today's Hourly Forecast
24-hour breakdown for Markham, Ontario
12 AM
10°
Clear
1 AM
9°
Clear
2 AM
8°
Clear
3 AM
8°
Clear
4 AM
7°
Clear
5 AM
7°
Clear
6 AM
7°
Clear
7 AM
7°
Sunny
8 AM
7°
Sunny
9 AM
7°
Sunny
10 AM
8°
Sunny
11 AM
9°
Sunny
12 PM
9°
Sunny
1 PM
11°
Sunny
2 PM
11°
Sunny
3 PM
11°
Sunny
4 PM
12°
Sunny
5 PM
11°
Sunny
6 PM
11°
Sunny
7 PM
9°
Sunny
8 PM
6°
Sunny
9 PM
7°
Clear
10 PM
7°
Clear
11 PM
7°
Clear
3-Day Forecast
Daily overview for Markham, Ontario
Today
Sunny
13°
/
6°
🌧️ 0% chance of rain
💧 Avg. humidity: 49%
💨 Max wind: 19.8 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 5.8
🌅 Sunrise: 06:19 AM
🌇 Sunset: 08:12 PM
🌙 First Quarter
🌑 Moon: 49% lit
Sat, Apr 25
Moderate rain
7°
/
4°
🌧️ 92% chance of rain
💧 Avg. humidity: 77%
💨 Max wind: 27.7 km/h
🌧️ Total precip: 13.84 mm
☀️ UV Index: 0.8
🌅 Sunrise: 06:18 AM
🌇 Sunset: 08:13 PM
🌙 Waxing Gibbous
🌑 Moon: 60% lit
Sun, Apr 26
Sunny
13°
/
3°
🌧️ 0% chance of rain
💧 Avg. humidity: 70%
💨 Max wind: 12.2 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 6.3
🌅 Sunrise: 06:16 AM
🌇 Sunset: 08:14 PM
🌙 Waxing Gibbous
🌑 Moon: 70% lit
Best Time to Visit Markham
Plan your trip to Markham, Canada around the most favorable weather conditions.
Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
Frequently Asked Questions
What is the current weather in Markham?
Current conditions in Markham: Sunny, temperature 6°C, humidity 56%.
What is the best time to visit Markham?
The best time to visit Markham is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Markham?
Markham is located at approximately 43.9° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Markham?
The wettest period in Markham is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Markham?
For visits to Markham during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What are the public holidays in Markham in 2026?
View the 2026 public holidays for Markham on our Holidays page.
What are the GPS coordinates used for the weather forecast in Markham?
The weather forecast for Markham uses coordinates 43.8564, -79.3377.
What is the current temperature outside in Markham?
The current outdoor temperature in Markham is 6°C (43°F) with sunny.
What is the hourly weather forecast for Markham today?
Today's hour-by-hour weather breakdown for Markham is shown in the Hourly Forecast section above, including temperature, rain chance, and conditions for each hour of the day.
What is the weather in Markham tomorrow hour by hour?
Tomorrow's forecast for Markham shows a high of 7°C and a low of 4°C. See the 3-Day Forecast section above for a full hourly breakdown.
What is the chance of rain today in Markham?
Rain is not expected in Markham today. Current forecast shows no significant rain probability.
Is it going to rain today in Markham?
No, rain is not forecast for Markham today. Current conditions show clear to partly cloudy skies.