Weather in Markham - 14-day forecast

Forecast updated: Monday 2 NovemberWeather history: NASA POWER · 1981-2025

Weather in the coming days

What will the week bring? Markham

3 November Markham: the high will be about 21°C and the low 9°C. Trace rainfall - around 0.9 mm. 4 November it will be warmer: with a high of about 23°C.

21°C

maximum on Tue 3 Nov

Temperature, rainfall and historical comparison

Weather forecast compared with previous years

Choose a day to see the details. Temperatures show the daily high and low.

Forecast: daily highTypical range 1991-2020

Selected day in detail

Tuesday 3 November

Daily high21°CUsually 5-14°C

Daily low9°CColdest part of the day

Rainfall total0.9 mmTrace rainfall

Maximum wind speed16 km/hForecast wind speed

Warmer than usual. The historical comparison uses daily highs at this time of year. Less than 1 mm of rain is forecast for the day.

Full day-by-day forecast - table

14-day forecast: Markham
Date	Max. / min.	Rain	Typical daily high	Max. wind
Tuesday 3 November	21° / 9°	0.9 mm	5-14°C	16 km/h
Wednesday 4 November	23° / 10°	3.6 mm	5-13°C	20 km/h
Thursday 5 November	17° / 11°	3.8 mm	5-13°C	20 km/h
Friday 6 November	12° / 8°	3.7 mm	5-13°C	13 km/h
Saturday 7 November	10° / 6°	3.8 mm	4-13°C	14 km/h
Sunday 8 November	10° / 5°	8 mm	4-13°C	16 km/h
Monday 9 November	12° / 3°	1.1 mm	4-12°C	14 km/h
Tuesday 10 November	17° / 9°	0.8 mm	3-12°C	23 km/h
Wednesday 11 November	9° / 2°	0.8 mm	3-12°C	22 km/h
Thursday 12 November	6° / -2°	0.3 mm	3-12°C	13 km/h
Friday 13 November	8° / 2°	0.2 mm	2-12°C	22 km/h
Saturday 14 November	4° / -2°	15 mm	2-11°C	14 km/h
Sunday 15 November	7° / -1°	0 mm	2-11°C	13 km/h
Monday 16 November	15° / 6°	0 mm	2-10°C	10 km/h

What stands out this week?

Temperatures this week

10-23°C

Average forecast high: 15°C. Historical reference for these dates: 9°C.

Temperature changes

Drop of 6°C

From 4 November to 5 November. This is the day-to-day change in the forecast high.

Will it rain?

6 days with rain ≥1 mm

7-day total: 25.1 mm. Trace rainfall below 1 mm is shown separately. The forecast also shows snow. Precipitation values in this view are given in millimetres of rain.

This summary covers the first 7 forecast days. A rainy day has at least 1 mm of rain. The historical comparison shows how often such days occurred in previous years.

Weather history 1981-2025

The same week in previous years

NASA POWER

How warm was this week in previous years?

Each bar shows the average daily high during the same 7-day period in each year.

swipe to see more years →

cooler yearstypical rangewarmer years2026 forecastcurrent forecast

From 1981 to 2025, the 3-9 Nov period averaged 9°C by day. The coolest year was 1991 (1°C) and the warmest was 2020 (17°C). The current forecast averages 15°C - higher than in 93% of historical years.

How do we compare the forecast with history?

The forecast chart band shows the 20th-80th percentiles of NASA POWER daily highs from 1991-2020, using the date and a ±7-calendar-day window. The line shows the forecast daily high. The year-by-year chart compares average highs over the same seven dates.

NASA POWER (MERRA-2) data describe conditions in the grid cell covering the location. Elevation and local conditions can affect the comparison.

NASA POWER source and methodology

Plan your trip

Travel offers: Markham

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What else should you know before travelling?

Beyond the forecast period

What weather is typical in the following weeks?

For dates beyond the 14-day forecast, we show typical conditions based on historical data.

Tue 17 Nov - Mon 30 Nov4°C / -2°Cusual daily high / low

Tue 1 Dec - Thu 17 Dec1°C / -4°Cusual daily high / low

Average of the daily medians for the following dates from 1991-2020. A comparison based on historical data.

Downloadable forecast graphic

Markham - 14-day weather forecast infographic

Detailed weather forecast for Markham, Canada: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.

UV index in Markham - is it safe to sunbathe?

Today the UV index in Markham is 2 (low). You can safely stay outside. Sunscreen only matters for very long exposure.

Air quality and smog in Markham

Air quality in Markham is currently good. Fine particulate PM2.5: 14.3 µg/m³, PM10: 14.5 µg/m³.

City	PM2.5 (µg/m³)	PM10 (µg/m³)	Air quality
Markham	14.3	14.5	good

CAMS air-quality model data provided by Open-Meteo, updated daily. Colours represent PM2.5 concentration bands. Data time: 2026-11-02 21:00.

Markham weather through the year

Markham weather through the year
Month	Day	Night	Chance of rain
January	-3°C	-10°C	24%
February	-2°C	-10°C	17%
March	2°C	-6°C	27%
April ★	11°C	1°C	45%
May ★	20°C	9°C	44%
June ★	24°C	13°C	46%
July ★	27°C	16°C	44%
August ★	26°C	16°C	43%
September ★	23°C	12°C	35%
October ★	15°C	6°C	57%
November	7°C	-1°C	48%
December	1°C	-4°C	31%

★ - months most often recommended for travel

Warmest, driest months on average: April, May, June, July.

Upcoming public holidays in Canada: Christmas Day — 25 December · New Year's Day — 1 January · Good Friday — 26 March.

Nearby and related places

TorontoMississaugaGatineauMontrealCalgaryOttawaVancouver

Weather and travel dates: Markham

Based on the historical data in the climate table for this location.

Warmest months

July

Average daytime temperature: 27°C

Coolest months

January

Average daytime temperature: -3°C

Lowest share of days with precipitation

February

Share of days with precipitation: 17%

Before you travel

Check the forecast daytime and nighttime temperatures, precipitation and current warnings. Use them to choose clothing and plan outdoor activities.

Official travel information

Select your destination on the government website and check the latest advice. Entry requirements depend on factors including citizenship and the purpose of your trip.

FAQ - Markham weather

What will the weather be like today and tomorrow?