Current Conditions

Caledon, Ontario

67°F19°C

Cloudy

Wind

SSE 7 mph11 km/h

Humidity

73%

Cloud Cover

99%

As of Tuesday, September 8, 2026 at 8:35 PM EDT

Today's Outlook

Night

Overcast, with a low around 64°F18°C. Light wind from the SSE around 6 mph10 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Cloudy	High 75°F24°C	Low 64°F18°C	Precip 0 in0 mm—	Cloud 99%	Wind SSE 6 mph9 km/h	Tuesday: Overcast and warm, with a high of 75°F24°C. Light wind from the SSE around 5 mph8 km/h. Tuesday Night: Overcast, with a low around 64°F18°C. Light wind from the SSE around 6 mph10 km/h.
Light Rain	High 72°F22°C	Low 64°F18°C	Precip 0.39 in10 mm98%	Cloud 91%	Wind SW 9 mph14 km/h	Wednesday: Overcast and warm, with a high of 72°F22°C and morning low of 66°F19°C. Breezy from the SW at 10 to 12 mph16 to 19 km/h. 98% chance of light rain throughout the day. Humid. Wednesday Night: Overcast, with a low around 64°F18°C. Breezy from the WSW at 8 to 11 mph13 to 18 km/h. 81% chance of light rain before dawn.
Partly Cloudy	High 72°F22°C	Low 55°F13°C	Precip 0 in0 mm—	Cloud 59%	Wind WNW 9 mph14 km/h	Thursday: Overcast and warm, with a high of 72°F22°C and morning low of 61°F16°C. Breezy from the WNW at 10 to 11 mph16 to 18 km/h. Thursday Night: Partly cloudy, with a low around 55°F13°C. Breezy from the WNW at 8 to 10 mph12 to 16 km/h.
Clear	High 74°F23°C	Low 48°F9°CFeels 45°F7°C	Precip 0 in0 mm—	Cloud 12%	Wind W 5 mph8 km/h	Friday: Mostly clear and warm, with a high of 74°F23°C and morning low of 50°F10°C. Light wind from the WNW around 4 mph7 km/h. Dry air. Friday Night: Mostly clear, with a low around 48°F9°C. Light wind from the WSW around 5 mph8 km/h.
Drizzle	High 78°F26°C	Low 51°F11°C	Precip 0.03 in0.7 mm17%	Cloud 52%	Wind SSW 6 mph10 km/h	Saturday: Partly cloudy and warm, with a high of 78°F26°C and morning low of 54°F12°C. Breezy from the S at 7 to 9 mph11 to 14 km/h. 17% chance of drizzle in the afternoon. Saturday Night: Mostly cloudy, with a low around 51°F11°C. Breezy from the SSW at 6 to 7 mph10 to 12 km/h. 12% chance of drizzle overnight.
Drizzle	High 72°F22°C	Low 55°F13°C	Precip 0.04 in0.9 mm10%	Cloud 45%	Wind WNW 9 mph14 km/h	Sunday: Mostly cloudy and warm, with a high of 72°F22°C and morning low of 62°F16°C. Breezy from the WNW at 9 to 11 mph15 to 18 km/h. 10% chance of drizzle throughout the day. Sunday Night: Partly cloudy, with a low around 55°F13°C. Breezy from the WNW at 8 to 9 mph13 to 14 km/h. 10% chance of drizzle overnight.
Partly Cloudy	High 67°F19°C	Low 50°F10°CFeels 47°F8°C	Precip 0.02 in0.4 mm4%	Cloud 48%	Wind NW 6 mph10 km/h	Monday: Mostly cloudy and mild, with a high of 67°F19°C and morning low of 50°F10°C. Light wind from the NNW around 6 mph10 km/h. Dry air. Monday Night: Partly cloudy, with a low around 50°F10°C. Breezy from the NW at 6 to 7 mph10 to 12 km/h.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	TuesdaySep 8	75°F24°C	64°F18°C	0 in0 mm· —	99%	Cloudy	SSE 6 mph9 km/h
DayOvercast and warm, with a high of 75°F24°C. Light wind from the SSE around 5 mph8 km/h. NightOvercast, with a low around 64°F18°C. Light wind from the SSE around 6 mph10 km/h.
	WednesdaySep 9	72°F22°C	64°F18°C	0.39 in10 mm· 98%	91%	Light Rain	SW 9 mph14 km/h
DayOvercast and warm, with a high of 72°F22°C and morning low of 66°F19°C. Breezy from the SW at 10 to 12 mph16 to 19 km/h. 98% chance of light rain throughout the day. Humid. NightOvercast, with a low around 64°F18°C. Breezy from the WSW at 8 to 11 mph13 to 18 km/h. 81% chance of light rain before dawn.
	ThursdaySep 10	72°F22°C	55°F13°C	0 in0 mm· —	59%	Partly Cloudy	WNW 9 mph14 km/h
DayOvercast and warm, with a high of 72°F22°C and morning low of 61°F16°C. Breezy from the WNW at 10 to 11 mph16 to 18 km/h. NightPartly cloudy, with a low around 55°F13°C. Breezy from the WNW at 8 to 10 mph12 to 16 km/h.
	FridaySep 11	74°F23°C	48°F9°C Feels 45°F7°C	0 in0 mm· —	12%	Clear	W 5 mph8 km/h
DayMostly clear and warm, with a high of 74°F23°C and morning low of 50°F10°C. Light wind from the WNW around 4 mph7 km/h. Dry air. NightMostly clear, with a low around 48°F9°C. Light wind from the WSW around 5 mph8 km/h.
	SaturdaySep 12	78°F26°C	51°F11°C	0.03 in0.7 mm· 17%	52%	Drizzle	SSW 6 mph10 km/h
DayPartly cloudy and warm, with a high of 78°F26°C and morning low of 54°F12°C. Breezy from the S at 7 to 9 mph11 to 14 km/h. 17% chance of drizzle in the afternoon. NightMostly cloudy, with a low around 51°F11°C. Breezy from the SSW at 6 to 7 mph10 to 12 km/h. 12% chance of drizzle overnight.
	SundaySep 13	72°F22°C	55°F13°C	0.04 in0.9 mm· 10%	45%	Drizzle	WNW 9 mph14 km/h
DayMostly cloudy and warm, with a high of 72°F22°C and morning low of 62°F16°C. Breezy from the WNW at 9 to 11 mph15 to 18 km/h. 10% chance of drizzle throughout the day. NightPartly cloudy, with a low around 55°F13°C. Breezy from the WNW at 8 to 9 mph13 to 14 km/h. 10% chance of drizzle overnight.
	MondaySep 14	67°F19°C	50°F10°C Feels 47°F8°C	0.02 in0.4 mm· 4%	48%	Partly Cloudy	NW 6 mph10 km/h
DayMostly cloudy and mild, with a high of 67°F19°C and morning low of 50°F10°C. Light wind from the NNW around 6 mph10 km/h. Dry air. NightPartly cloudy, with a low around 50°F10°C. Breezy from the NW at 6 to 7 mph10 to 12 km/h.
	TuesdaySep 15	74°F24°C	53°F11°C	0.16 in4 mm· 30%	71%	Light Rain	SSW 9 mph15 km/h
DayMostly cloudy and warm, with a high of 74°F24°C and morning low of 56°F13°C. Breezy from the SSW at 11 to 12 mph17 to 19 km/h. 25% chance of light rain throughout the day. NightMostly cloudy, with a low around 53°F11°C. Breezy from the SSW at 8 to 9 mph13 to 15 km/h. 30% chance of showers throughout the night.
	WednesdaySep 16	73°F23°C	59°F15°C	0.13 in3.2 mm· 27%	66%	Showers	WNW 7 mph11 km/h
DayMostly cloudy and warm, with a high of 73°F23°C and morning low of 60°F15°C. Light wind from the WNW around 7 mph11 km/h. 20% chance of drizzle throughout the day. NightMostly cloudy, with a low around 59°F15°C. Breezy from the WNW at 7 to 8 mph11 to 13 km/h. 27% chance of showers throughout the night.
	ThursdaySep 17	72°F22°C	56°F14°C	0.14 in3.5 mm· 22%	66%	Showers	S 7 mph11 km/h
DayMostly cloudy and warm, with a high of 72°F22°C and morning low of 57°F14°C. Breezy from the S at 7 to 8 mph12 to 13 km/h. 22% chance of light rain throughout the day. NightMostly cloudy, with a low around 56°F14°C. Breezy from the S at 6 to 8 mph10 to 12 km/h. 21% chance of drizzle throughout the night.
	FridaySep 18	73°F23°C	60°F15°C	0.19 in4.8 mm· 24%	59%	Showers	W 8 mph13 km/h
DayMostly cloudy and warm, with a high of 73°F23°C and morning low of 61°F16°C. Breezy from the W at 9 to 10 mph14 to 16 km/h. 23% chance of showers throughout the day. NightMostly cloudy, with a low around 60°F15°C. Breezy from the W at 8 mph13 km/h. 24% chance of showers throughout the night.
	SaturdaySep 19	66°F19°C	53°F12°C	0.15 in3.7 mm· 25%	64%	Showers	WNW 8 mph13 km/h
DayMostly cloudy and mild, with a high of 66°F19°C and morning low of 55°F13°C. Breezy from the WNW at 9 to 10 mph14 to 16 km/h. 25% chance of showers throughout the day. NightMostly cloudy, with a low around 53°F12°C. Breezy from the WNW at 8 mph12 km/h. 19% chance of showers throughout the night.
	SundaySep 20	62°F16°C	49°F10°C	0.14 in3.6 mm· 21%	61%	Showers	WNW 8 mph12 km/h
DayMostly cloudy and mild, with a high of 62°F16°C and morning low of 50°F10°C. Breezy from the WNW at 8 to 9 mph13 to 14 km/h. 21% chance of showers throughout the day. Dry air. NightMostly cloudy, with a low around 49°F10°C. Breezy from the NW at 7 mph11 km/h. 19% chance of showers throughout the night.
	MondaySep 21	62°F17°C	46°F8°C Feels 43°F6°C	0.09 in2.3 mm· 21%	53%	Drizzle	WNW 7 mph11 km/h
DayMostly cloudy and mild, with a high of 62°F17°C and morning low of 46°F8°C. Breezy from the WNW at 7 to 8 mph12 to 13 km/h. 21% chance of drizzle throughout the day. Dry air. NightPartly cloudy, with a low around 46°F8°C. Light wind from the NW around 6 mph10 km/h. 12% chance of drizzle throughout the night.
	TuesdaySep 22	63°F17°C	45°F7°C Feels 42°F6°C	0.09 in2.2 mm· 17%	55%	Drizzle	WSW 7 mph11 km/h
DayMostly cloudy and mild, with a high of 63°F17°C and morning low of 46°F8°C. Breezy from the WSW at 7 to 8 mph12 to 13 km/h. 17% chance of drizzle throughout the day. Dry air. NightPartly cloudy, with a low around 45°F7°C. Light wind from the WSW around 6 mph10 km/h. 12% chance of drizzle throughout the night.

Nearby Cities

Orangeville6 mi10 km Bolton13 mi21 km Georgetown15 mi25 km Halton Hills16 mi26 km Brampton17 mi27 km Alliston21 mi33 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: 43.8654°N, 79.9932°W·Elevation: 437m·Timezone: America/Toronto·Population: 76,581