Current Conditions

Markham, Ontario

66°F19°C

Partly Cloudy

Wind

NW 6 mph10 km/h

Humidity

88%

Cloud Cover

90%

As of Thursday, August 13, 2026 at 8:23 AM EDT

Today's Outlook

Day

Overcast and warm, with a high of 79°F26°C and morning low of 66°F19°C. Breezy from the WNW at 7 to 8 mph11 to 12 km/h.

Night

Partly cloudy, with a low around 64°F18°C. Breezy from the NW at 7 mph11 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Partly Cloudy	High 79°F26°C	Low 64°F18°C	Precip 0 in0 mm—	Cloud 57%	Wind NW 7 mph11 km/h	Thursday: Overcast and warm, with a high of 79°F26°C and morning low of 66°F19°C. Breezy from the WNW at 7 to 8 mph11 to 12 km/h. Thursday Night: Partly cloudy, with a low around 64°F18°C. Breezy from the NW at 7 mph11 km/h.
Clear	High 78°F26°C	Low 63°F17°C	Precip 0 in0.1 mm3%	Cloud 39%	Wind NNW 5 mph8 km/h	Friday: Partly cloudy and warm, with a high of 78°F26°C and morning low of 66°F19°C. Light wind from the NNW around 4 mph7 km/h. Friday Night: Partly cloudy, with a low around 63°F17°C. Breezy from the NNW at 6 to 7 mph9 to 11 km/h.
Clear	High 75°F24°C	Low 64°F18°C	Precip 0 in0.1 mm2%	Cloud 30%	Wind E 8 mph13 km/h	Saturday: Partly cloudy and warm, with a high of 75°F24°C and morning low of 66°F19°C. Breezy from the E at 9 mph14 km/h. Saturday Night: Partly cloudy, with a low around 64°F18°C. Breezy from the E at 8 to 9 mph13 to 14 km/h.
Light Rain	High 75°F24°C	Low 66°F19°C	Precip 0.14 in3.5 mm48%	Cloud 73%	Wind ESE 7 mph12 km/h	Sunday: Overcast and warm, with a high of 75°F24°C and morning low of 67°F20°C. Breezy from the ESE at 7 to 8 mph12 to 14 km/h. 48% chance of light rain throughout the day. Sunday Night: Mostly cloudy, with a low around 66°F19°C. Breezy from the E at 8 to 9 mph12 to 15 km/h. 43% chance of showers in the evening.
Drizzle	High 75°F24°C	Low 66°F19°C	Precip 0.04 in1 mm19%	Cloud 57%	Wind NNW 8 mph13 km/h	Monday: Mostly cloudy and warm, with a high of 75°F24°C and morning low of 68°F20°C. Breezy from the NNW at 8 mph13 km/h. 19% chance of drizzle throughout the day. Monday Night: Mostly cloudy, with a low around 66°F19°C. Breezy from the NNW at 8 to 9 mph13 to 14 km/h. 14% chance of drizzle overnight.
Partly Cloudy	High 76°F25°C	Low 62°F17°C	Precip 0 in0.1 mm2%	Cloud 49%	Wind WNW 6 mph10 km/h	Tuesday: Mostly cloudy and warm, with a high of 76°F25°C and morning low of 64°F18°C. Light wind from the W around 5 mph9 km/h. Tuesday Night: Partly cloudy, with a low around 62°F17°C. Breezy from the WNW at 7 to 8 mph11 to 13 km/h.
Light Rain	High 74°F23°C	Low 65°F18°C	Precip 0.18 in4.6 mm49%	Cloud 79%	Wind SW 9 mph14 km/h	Wednesday: Overcast and warm, with a high of 74°F23°C and morning low of 66°F19°C. Breezy from the SSW at 9 to 11 mph15 to 17 km/h. 49% chance of light rain throughout the day. Wednesday Night: Mostly cloudy, with a low around 65°F18°C. Breezy from the SW at 8 to 9 mph12 to 15 km/h. 49% chance of light rain in the evening.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	ThursdayAug 13	79°F26°C	64°F18°C	0 in0 mm· —	57%	Partly Cloudy	NW 7 mph11 km/h
DayOvercast and warm, with a high of 79°F26°C and morning low of 66°F19°C. Breezy from the WNW at 7 to 8 mph11 to 12 km/h. NightPartly cloudy, with a low around 64°F18°C. Breezy from the NW at 7 mph11 km/h.
	FridayAug 14	78°F26°C	63°F17°C	0 in0.1 mm· 3%	39%	Clear	NNW 5 mph8 km/h
DayPartly cloudy and warm, with a high of 78°F26°C and morning low of 66°F19°C. Light wind from the NNW around 4 mph7 km/h. NightPartly cloudy, with a low around 63°F17°C. Breezy from the NNW at 6 to 7 mph9 to 11 km/h.
	SaturdayAug 15	75°F24°C	64°F18°C	0 in0.1 mm· 2%	30%	Clear	E 8 mph13 km/h
DayPartly cloudy and warm, with a high of 75°F24°C and morning low of 66°F19°C. Breezy from the E at 9 mph14 km/h. NightPartly cloudy, with a low around 64°F18°C. Breezy from the E at 8 to 9 mph13 to 14 km/h.
	SundayAug 16	75°F24°C	66°F19°C	0.14 in3.5 mm· 48%	73%	Light Rain	ESE 7 mph12 km/h
DayOvercast and warm, with a high of 75°F24°C and morning low of 67°F20°C. Breezy from the ESE at 7 to 8 mph12 to 14 km/h. 48% chance of light rain throughout the day. NightMostly cloudy, with a low around 66°F19°C. Breezy from the E at 8 to 9 mph12 to 15 km/h. 43% chance of showers in the evening.
	MondayAug 17	75°F24°C	66°F19°C	0.04 in1 mm· 19%	57%	Drizzle	NNW 8 mph13 km/h
DayMostly cloudy and warm, with a high of 75°F24°C and morning low of 68°F20°C. Breezy from the NNW at 8 mph13 km/h. 19% chance of drizzle throughout the day. NightMostly cloudy, with a low around 66°F19°C. Breezy from the NNW at 8 to 9 mph13 to 14 km/h. 14% chance of drizzle overnight.
	TuesdayAug 18	76°F25°C	62°F17°C	0 in0.1 mm· 2%	49%	Partly Cloudy	WNW 6 mph10 km/h
DayMostly cloudy and warm, with a high of 76°F25°C and morning low of 64°F18°C. Light wind from the W around 5 mph9 km/h. NightPartly cloudy, with a low around 62°F17°C. Breezy from the WNW at 7 to 8 mph11 to 13 km/h.
	WednesdayAug 19	74°F23°C	65°F18°C	0.18 in4.6 mm· 49%	79%	Light Rain	SW 9 mph14 km/h
DayOvercast and warm, with a high of 74°F23°C and morning low of 66°F19°C. Breezy from the SSW at 9 to 11 mph15 to 17 km/h. 49% chance of light rain throughout the day. NightMostly cloudy, with a low around 65°F18°C. Breezy from the SW at 8 to 9 mph12 to 15 km/h. 49% chance of light rain in the evening.
	ThursdayAug 20	72°F22°C	64°F18°C	0.17 in4.2 mm· 44%	55%	Showers	NW 10 mph16 km/h
DayMostly cloudy and warm, with a high of 72°F22°C and morning low of 65°F18°C. Breezy from the WNW at 10 mph16 km/h. 23% chance of drizzle throughout the day. NightMostly cloudy, with a low around 64°F18°C. Breezy from the NW at 9 to 10 mph15 to 15 km/h. 44% chance of showers throughout the night.
	FridayAug 21	72°F22°C	59°F15°C	0.06 in1.5 mm· 14%	43%	Drizzle	NW 8 mph12 km/h
DayMostly cloudy and warm, with a high of 72°F22°C and morning low of 61°F16°C. Breezy from the NW at 8 mph12 km/h. 14% chance of drizzle throughout the day. NightPartly cloudy, with a low around 59°F15°C. Breezy from the NW at 8 mph12 km/h. 10% chance of drizzle throughout the night.
	SaturdayAug 22	74°F23°C	60°F16°C	0.06 in1.4 mm· 17%	43%	Drizzle	WNW 7 mph11 km/h
DayPartly cloudy and warm, with a high of 74°F23°C and morning low of 62°F17°C. Breezy from the W at 7 to 8 mph11 to 12 km/h. 17% chance of drizzle throughout the day. NightPartly cloudy, with a low around 60°F16°C. Light wind from the NW around 7 mph11 km/h. 13% chance of drizzle throughout the night.
	SundayAug 23	74°F23°C	61°F16°C	0.06 in1.4 mm· 17%	45%	Drizzle	WNW 7 mph11 km/h
DayMostly cloudy and warm, with a high of 74°F23°C and morning low of 62°F17°C. Breezy from the W at 7 to 8 mph11 to 13 km/h. 17% chance of drizzle throughout the day. NightPartly cloudy, with a low around 61°F16°C. Breezy from the WNW at 7 mph11 km/h. 13% chance of drizzle throughout the night.
	MondayAug 24	74°F23°C	62°F16°C	0.08 in2.1 mm· 22%	43%	Drizzle	W 7 mph12 km/h
DayPartly cloudy and warm, with a high of 74°F23°C and morning low of 63°F17°C. Breezy from the WSW at 8 mph12 km/h. 22% chance of drizzle throughout the day. NightPartly cloudy, with a low around 62°F16°C. Breezy from the WNW at 7 mph11 km/h. 16% chance of drizzle throughout the night.
	TuesdayAug 25	74°F23°C	62°F17°C	0.07 in1.8 mm· 18%	47%	Drizzle	WNW 7 mph12 km/h
DayMostly cloudy and warm, with a high of 74°F23°C and morning low of 63°F17°C. Breezy from the WNW at 8 mph12 km/h. 18% chance of drizzle throughout the day. NightPartly cloudy, with a low around 62°F17°C. Breezy from the NW at 7 mph12 km/h. 15% chance of drizzle throughout the night.
	WednesdayAug 26	74°F23°C	62°F17°C	0.07 in1.8 mm· 16%	45%	Drizzle	NW 7 mph12 km/h
DayMostly cloudy and warm, with a high of 74°F23°C and morning low of 63°F17°C. Breezy from the WNW at 7 to 8 mph12 to 13 km/h. 16% chance of drizzle throughout the day. NightPartly cloudy, with a low around 62°F17°C. Breezy from the NW at 7 to 8 mph11 to 12 km/h. 11% chance of drizzle throughout the night.
	ThursdayAug 27	72°F22°C	61°F16°C	0.1 in2.5 mm· 24%	47%	Drizzle	NNW 8 mph12 km/h
DayMostly cloudy and warm, with a high of 72°F22°C and morning low of 62°F17°C. Breezy from the NW at 8 mph13 km/h. 24% chance of drizzle throughout the day. NightPartly cloudy, with a low around 61°F16°C. Breezy from the NNW at 8 mph12 km/h. 19% chance of drizzle throughout the night.

Nearby Cities

Milliken3 mi5 km Agincourt North4 mi7 km Malvern5 mi7 km Steeles5 mi8 km Agincourt South-Malvern West5 mi9 km L'Amoreaux5 mi9 km

About This Forecast

This forecast is powered by WeatherMesh, the world's most advanced and accurate weather model powered by AI. WeatherMesh is built on proprietary data from WindBorne's Global Sounding Balloon constellation — the world's largest fleet of autonomous, long-duration weather balloons — collecting observations across 100% of Earth, including over oceans and remote regions where no other data exists.

WeatherMesh consistently outperforms legacy models in independent benchmarks. View Benchmarks →

Access WeatherMesh forecasts programmatically via our API. API Documentation →

How to Access Weather Forecasts

Pattern	Example	Description
/weather/{country}/{city}/	/weather/united-states/san-francisco/	City forecast (canonical URL)
/weather/{city}/	/weather/tokyo/	Shorthand — redirects to most populous match
/weather/{country}/{region}/{city}/	/weather/united-states/california/san-francisco/	With region — redirects to canonical
/weather/nearby?lat={lat}&lon={lon}	/weather/nearby?lat=48.1&lon=11.5	Find nearest city by coordinates
/weather/{country}/	/weather/germany/	Country index — all cities by region

Country and city names use lowercase slugs with hyphens (e.g. united-states, san-francisco). Arbitrary city names are supported — if not in our database, we geocode the name and serve the forecast for that location.

For programmatic access, use theWindBorne Forecast APIwhich returns structured JSON for any coordinates worldwide.

Coordinates: 43.8668°N, 79.2663°W·Elevation: 168m·Timezone: America/Toronto·Population: 338,503