Current Conditions

Bolton, Ontario

46°F8°C

Clear

Feels like42°F5°C

Wind

ENE 8 mph12 km/h

Humidity

79%

Cloud Cover

As of Wednesday, September 23, 2026 at 2:00 AM EDT

Today's Outlook

Day

Mostly clear and mild, with a high of 64°F18°C and morning low of 46°F8°C. Breezy from the E at 10 to 11 mph16 to 18 km/h. Dry air.

Night

Mostly clear, with a low around 44°F7°C. Breezy from the ENE at 8 mph12 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Clear	High 64°F18°C	Low 44°F7°CFeels 40°F4°C	Precip 0 in0 mm—	Cloud 13%	Wind E 9 mph14 km/h	Wednesday: Mostly clear and mild, with a high of 64°F18°C and morning low of 46°F8°C. Breezy from the E at 10 to 11 mph16 to 18 km/h. Dry air. Wednesday Night: Mostly clear, with a low around 44°F7°C. Breezy from the ENE at 8 mph12 km/h.
Clear	High 66°F19°C	Low 44°F7°CFeels 41°F5°C	Precip 0 in0 mm—	Cloud 7%	Wind E 6 mph9 km/h	Thursday: Mostly clear and mild, with a high of 66°F19°C and morning low of 45°F7°C. Breezy from the E at 7 to 8 mph11 to 12 km/h. Dry air. Thursday Night: Mostly clear, with a low around 44°F7°C. Breezy from the ENE at 5 to 7 mph8 to 12 km/h.
Clear	High 70°F21°C	Low 41°F5°CFeels 37°F3°C	Precip 0 in0 mm—	Cloud 39%	Wind N 6 mph10 km/h	Friday: Mostly cloudy and warm, with a high of 70°F21°C and morning low of 42°F6°C. Light wind from the N around 6 mph10 km/h. Dry air. Friday Night: Mostly clear, with a low around 41°F5°C. Breezy from the N at 6 to 8 mph10 to 13 km/h.
Clear	High 73°F23°C	Low 46°F8°CFeels 43°F6°C	Precip 0 in0 mm—	Cloud 26%	Wind N 7 mph12 km/h	Saturday: Mostly clear and warm, with a high of 73°F23°C and morning low of 47°F8°C. Breezy from the N at 7 to 8 mph12 to 12 km/h. Dry air. Saturday Night: Partly cloudy, with a low around 46°F8°C. Breezy from the N at 8 mph12 km/h.
Drizzle	High 70°F21°C	Low 49°F10°CFeels 46°F8°C	Precip 0.02 in0.4 mm12%	Cloud 61%	Wind N 8 mph12 km/h	Sunday: Mostly cloudy and warm, with a high of 70°F21°C and morning low of 50°F10°C. Breezy from the N at 8 to 9 mph13 to 14 km/h. Dry air. Sunday Night: Mostly cloudy, with a low around 49°F10°C. Breezy from the N at 7 to 8 mph11 to 12 km/h. 12% chance of drizzle in the evening.
Drizzle	High 68°F20°C	Low 52°F11°C	Precip 0.02 in0.5 mm11%	Cloud 57%	Wind N 5 mph8 km/h	Monday: Mostly cloudy and mild, with a high of 68°F20°C and morning low of 53°F12°C. Light wind from the N around 6 mph9 km/h. Monday Night: Mostly cloudy, with a low around 52°F11°C. Light wind from the N around 5 mph7 km/h. 11% chance of drizzle before dawn.
Partly Cloudy	High 71°F22°C	Low 50°F10°C	Precip 0 in0.1 mm2%	Cloud 46%	Wind SSW 4 mph7 km/h	Tuesday: Partly cloudy and warm, with a high of 71°F22°C and morning low of 50°F10°C. Light wind from the SSW around 4 mph7 km/h. Tuesday Night: Partly cloudy, with a low around 50°F10°C. Light wind from the SSW around 5 mph7 km/h.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	WednesdaySep 23	64°F18°C	44°F7°C Feels 40°F4°C	0 in0 mm· —	13%	Clear	E 9 mph14 km/h
DayMostly clear and mild, with a high of 64°F18°C and morning low of 46°F8°C. Breezy from the E at 10 to 11 mph16 to 18 km/h. Dry air. NightMostly clear, with a low around 44°F7°C. Breezy from the ENE at 8 mph12 km/h.
	ThursdaySep 24	66°F19°C	44°F7°C Feels 41°F5°C	0 in0 mm· —	7%	Clear	E 6 mph9 km/h
DayMostly clear and mild, with a high of 66°F19°C and morning low of 45°F7°C. Breezy from the E at 7 to 8 mph11 to 12 km/h. Dry air. NightMostly clear, with a low around 44°F7°C. Breezy from the ENE at 5 to 7 mph8 to 12 km/h.
	FridaySep 25	70°F21°C	41°F5°C Feels 37°F3°C	0 in0 mm· —	39%	Clear	N 6 mph10 km/h
DayMostly cloudy and warm, with a high of 70°F21°C and morning low of 42°F6°C. Light wind from the N around 6 mph10 km/h. Dry air. NightMostly clear, with a low around 41°F5°C. Breezy from the N at 6 to 8 mph10 to 13 km/h.
	SaturdaySep 26	73°F23°C	46°F8°C Feels 43°F6°C	0 in0 mm· —	26%	Clear	N 7 mph12 km/h
DayMostly clear and warm, with a high of 73°F23°C and morning low of 47°F8°C. Breezy from the N at 7 to 8 mph12 to 12 km/h. Dry air. NightPartly cloudy, with a low around 46°F8°C. Breezy from the N at 8 mph12 km/h.
	SundaySep 27	70°F21°C	49°F10°C Feels 46°F8°C	0.02 in0.4 mm· 12%	61%	Drizzle	N 8 mph12 km/h
DayMostly cloudy and warm, with a high of 70°F21°C and morning low of 50°F10°C. Breezy from the N at 8 to 9 mph13 to 14 km/h. Dry air. NightMostly cloudy, with a low around 49°F10°C. Breezy from the N at 7 to 8 mph11 to 12 km/h. 12% chance of drizzle in the evening.
	MondaySep 28	68°F20°C	52°F11°C	0.02 in0.5 mm· 11%	57%	Drizzle	N 5 mph8 km/h
DayMostly cloudy and mild, with a high of 68°F20°C and morning low of 53°F12°C. Light wind from the N around 6 mph9 km/h. NightMostly cloudy, with a low around 52°F11°C. Light wind from the N around 5 mph7 km/h. 11% chance of drizzle before dawn.
	TuesdaySep 29	71°F22°C	50°F10°C	0 in0.1 mm· 2%	46%	Partly Cloudy	SSW 4 mph7 km/h
DayPartly cloudy and warm, with a high of 71°F22°C and morning low of 50°F10°C. Light wind from the SSW around 4 mph7 km/h. NightPartly cloudy, with a low around 50°F10°C. Light wind from the SSW around 5 mph7 km/h.
	WednesdaySep 30	70°F21°C	53°F12°C	0.11 in2.9 mm· 28%	77%	Light Rain	SSE 7 mph11 km/h
DayOvercast and warm, with a high of 70°F21°C and morning low of 54°F12°C. Breezy from the SSE at 8 to 9 mph12 to 15 km/h. 21% chance of drizzle throughout the day. NightMostly cloudy, with a low around 53°F12°C. Breezy from the S at 6 to 7 mph10 to 12 km/h. 28% chance of light rain in the evening.
	ThursdayOct 1	68°F20°C	57°F14°C	0.18 in4.6 mm· 24%	71%	Light Rain	SW 8 mph13 km/h
DayMostly cloudy and warm, with a high of 68°F20°C and morning low of 57°F14°C. Breezy from the SW at 9 to 10 mph15 to 16 km/h. 24% chance of light rain throughout the day. NightMostly cloudy, with a low around 57°F14°C. Breezy from the SW at 8 mph12 km/h. 24% chance of light rain throughout the night.
	FridayOct 2	65°F18°C	52°F11°C	0.13 in3.3 mm· 21%	66%	Drizzle	W 8 mph13 km/h
DayMostly cloudy and mild, with a high of 65°F18°C and morning low of 52°F11°C. Breezy from the W at 9 to 10 mph14 to 15 km/h. 21% chance of drizzle throughout the day. Dry air. NightMostly cloudy, with a low around 53°F12°C. Breezy from the W at 7 mph11 km/h. 19% chance of drizzle throughout the night.
	SaturdayOct 3	65°F18°C	50°F10°C	0.11 in2.8 mm· 19%	67%	Showers	SW 8 mph12 km/h
DayMostly cloudy and mild, with a high of 65°F18°C and morning low of 50°F10°C. Breezy from the SW at 8 to 9 mph13 to 15 km/h. 17% chance of drizzle throughout the day. Dry air. NightMostly cloudy, with a low around 50°F10°C. Breezy from the SW at 7 mph11 km/h. 19% chance of showers throughout the night.
	SundayOct 4	64°F18°C	52°F11°C	0.16 in4 mm· 27%	67%	Showers	SW 8 mph13 km/h
DayMostly cloudy and mild, with a high of 64°F18°C and morning low of 52°F11°C. Breezy from the SW at 8 to 9 mph13 to 15 km/h. 27% chance of light rain throughout the day. Dry air. NightMostly cloudy, with a low around 53°F11°C. Breezy from the SW at 7 to 8 mph12 to 12 km/h. 22% chance of showers throughout the night.
	MondayOct 5	61°F16°C	49°F9°C Feels 46°F8°C	0.11 in2.7 mm· 23%	62%	Drizzle	W 8 mph13 km/h
DayMostly cloudy and mild, with a high of 61°F16°C and morning low of 49°F9°C. Breezy from the W at 9 mph14 km/h. 23% chance of drizzle throughout the day. Dry air. NightMostly cloudy, with a low around 49°F10°C. Breezy from the W at 7 mph12 km/h. 19% chance of drizzle throughout the night.
	TuesdayOct 6	60°F15°C	47°F8°C Feels 43°F6°C	0.1 in2.5 mm· 21%	62%	Drizzle	W 8 mph13 km/h
DayMostly cloudy and mild, with a high of 60°F15°C and morning low of 47°F8°C. Breezy from the W at 9 mph14 km/h. 21% chance of drizzle throughout the day. Dry air. NightMostly cloudy, with a low around 47°F8°C. Breezy from the W at 7 mph11 km/h. 20% chance of drizzle throughout the night.
	WednesdayOct 7	59°F15°C	46°F8°C Feels 42°F6°C	0.09 in2.4 mm· 29%	63%	Drizzle	W 8 mph13 km/h
DayMostly cloudy and mild, with a high of 59°F15°C and morning low of 46°F8°C. Breezy from the W at 8 to 10 mph14 to 15 km/h. 29% chance of drizzle throughout the day. Dry air. NightMostly cloudy, with a low around 46°F8°C. Breezy from the W at 7 to 8 mph12 to 12 km/h. 19% chance of drizzle throughout the night.

Nearby Cities

Mount Olive-Silverstone-Jamestown12 mi19 km Vaughan12 mi20 km Caledon13 mi21 km Humbermede13 mi21 km West Humber-Clairville13 mi21 km Black Creek13 mi22 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: 43.8795°N, 79.7379°W·Elevation: 221m·Timezone: America/Toronto·Population: 26,795