Current Conditions

Keswick, Ontario

68°F20°C

Partly Cloudy

Wind

W 4 mph6 km/h

Humidity

95%

Cloud Cover

72%

As of Wednesday, September 2, 2026 at 9:54 PM EDT

Today's Outlook

Night

Mostly cloudy, with a low around 65°F18°C. Light wind from the NW around 5 mph7 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Partly Cloudy	High 79°F26°C	Low 65°F18°C	Precip 0.01 in0.3 mm8%	Cloud 58%	Wind WNW 6 mph10 km/h	Thursday: Mostly cloudy and warm, with a high of 79°F26°C and morning low of 66°F19°C. Breezy from the WNW at 7 to 9 mph12 to 15 km/h. Thursday Night: Mostly cloudy, with a low around 65°F18°C. Light wind from the NW around 5 mph7 km/h.
Partly Cloudy	High 75°F24°C	Low 62°F17°C	Precip 0.01 in0.3 mm5%	Cloud 52%	Wind NNW 6 mph9 km/h	Friday: Mostly cloudy and warm, with a high of 75°F24°C and morning low of 63°F17°C. Breezy from the NNW at 6 to 9 mph10 to 14 km/h. Friday Night: Partly cloudy, with a low around 62°F17°C. Breezy from the NNW at 6 to 7 mph9 to 11 km/h.
Clear	High 73°F23°C	Low 59°F15°C	Precip 0 in0.1 mm4%	Cloud 38%	Wind N 6 mph10 km/h	Saturday: Mostly cloudy and warm, with a high of 73°F23°C and morning low of 60°F16°C. Breezy from the N at 8 mph12 km/h. Saturday Night: Mostly clear, with a low around 59°F15°C. Light wind from the N around 5 mph9 km/h.
Clear	High 74°F23°C	Low 57°F14°C	Precip 0 in0.1 mm7%	Cloud 39%	Wind ENE 4 mph6 km/h	Sunday: Mostly cloudy and warm, with a high of 74°F23°C and morning low of 59°F15°C. Light wind from the ENE around 4 mph6 km/h. Sunday Night: Partly cloudy, with a low around 57°F14°C. Light wind from the ENE around 4 mph6 km/h.
Partly Cloudy	High 76°F25°C	Low 56°F13°C	Precip 0 in0.1 mm2%	Cloud 53%	Wind W 4 mph6 km/h	Monday: Mostly cloudy and warm, with a high of 76°F25°C and morning low of 58°F14°C. Light wind from the WNW around 4 mph6 km/h. Monday Night: Partly cloudy, with a low around 56°F13°C. Light wind from the WSW around 4 mph6 km/h.
Drizzle	High 73°F23°C	Low 58°F15°C	Precip 0.03 in0.7 mm11%	Cloud 81%	Wind SE 5 mph9 km/h	Tuesday: Overcast and warm, with a high of 73°F23°C and morning low of 59°F15°C. Light wind from the SE around 5 mph8 km/h. 10% chance of drizzle in the afternoon. Tuesday Night: Mostly cloudy, with a low around 58°F15°C. Breezy from the SE at 6 to 7 mph9 to 11 km/h. 11% chance of drizzle in the evening.
Light Rain	High 80°F26°C	Low 63°F17°C	Precip 0.15 in3.9 mm30%	Cloud 71%	Wind SSW 8 mph13 km/h	Wednesday: Mostly cloudy and warm, with a high of 80°F26°C and morning low of 64°F18°C. Breezy from the SSW at 9 to 10 mph15 to 16 km/h. 30% chance of light rain throughout the day. Humid. Wednesday Night: Mostly cloudy, with a low around 63°F17°C. Breezy from the SSW at 8 mph12 km/h. 27% chance of drizzle throughout the night.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	ThursdaySep 3	79°F26°C	65°F18°C	0.01 in0.3 mm· 8%	58%	Partly Cloudy	WNW 6 mph10 km/h
DayMostly cloudy and warm, with a high of 79°F26°C and morning low of 66°F19°C. Breezy from the WNW at 7 to 9 mph12 to 15 km/h. NightMostly cloudy, with a low around 65°F18°C. Light wind from the NW around 5 mph7 km/h.
	FridaySep 4	75°F24°C	62°F17°C	0.01 in0.3 mm· 5%	52%	Partly Cloudy	NNW 6 mph9 km/h
DayMostly cloudy and warm, with a high of 75°F24°C and morning low of 63°F17°C. Breezy from the NNW at 6 to 9 mph10 to 14 km/h. NightPartly cloudy, with a low around 62°F17°C. Breezy from the NNW at 6 to 7 mph9 to 11 km/h.
	SaturdaySep 5	73°F23°C	59°F15°C	0 in0.1 mm· 4%	38%	Clear	N 6 mph10 km/h
DayMostly cloudy and warm, with a high of 73°F23°C and morning low of 60°F16°C. Breezy from the N at 8 mph12 km/h. NightMostly clear, with a low around 59°F15°C. Light wind from the N around 5 mph9 km/h.
	SundaySep 6	74°F23°C	57°F14°C	0 in0.1 mm· 7%	39%	Clear	ENE 4 mph6 km/h
DayMostly cloudy and warm, with a high of 74°F23°C and morning low of 59°F15°C. Light wind from the ENE around 4 mph6 km/h. NightPartly cloudy, with a low around 57°F14°C. Light wind from the ENE around 4 mph6 km/h.
	MondaySep 7	76°F25°C	56°F13°C	0 in0.1 mm· 2%	53%	Partly Cloudy	W 4 mph6 km/h
DayMostly cloudy and warm, with a high of 76°F25°C and morning low of 58°F14°C. Light wind from the WNW around 4 mph6 km/h. NightPartly cloudy, with a low around 56°F13°C. Light wind from the WSW around 4 mph6 km/h.
	TuesdaySep 8	73°F23°C	58°F15°C	0.03 in0.7 mm· 11%	81%	Drizzle	SE 5 mph9 km/h
DayOvercast and warm, with a high of 73°F23°C and morning low of 59°F15°C. Light wind from the SE around 5 mph8 km/h. 10% chance of drizzle in the afternoon. NightMostly cloudy, with a low around 58°F15°C. Breezy from the SE at 6 to 7 mph9 to 11 km/h. 11% chance of drizzle in the evening.
	WednesdaySep 9	80°F26°C	63°F17°C	0.15 in3.9 mm· 30%	71%	Light Rain	SSW 8 mph13 km/h
DayMostly cloudy and warm, with a high of 80°F26°C and morning low of 64°F18°C. Breezy from the SSW at 9 to 10 mph15 to 16 km/h. 30% chance of light rain throughout the day. Humid. NightMostly cloudy, with a low around 63°F17°C. Breezy from the SSW at 8 mph12 km/h. 27% chance of drizzle throughout the night.
	ThursdaySep 10	77°F25°C	66°F19°C	0.21 in5.4 mm· 39%	63%	Showers	W 9 mph14 km/h
DayMostly cloudy and warm, with a high of 77°F25°C and morning low of 69°F20°C. Breezy from the W at 9 to 11 mph15 to 17 km/h. 39% chance of showers throughout the day. Humid. NightMostly cloudy, with a low around 66°F19°C. Breezy from the W at 8 mph13 km/h. 22% chance of showers throughout the night.
	FridaySep 11	71°F22°C	61°F16°C	0.13 in3.2 mm· 24%	57%	Showers	WNW 8 mph12 km/h
DayMostly cloudy and warm, with a high of 71°F22°C and morning low of 62°F17°C. Breezy from the WNW at 8 to 9 mph13 to 15 km/h. 24% chance of showers throughout the day. NightMostly cloudy, with a low around 61°F16°C. Breezy from the WNW at 7 to 8 mph12 to 13 km/h. 12% chance of drizzle throughout the night.
	SaturdaySep 12	72°F22°C	58°F14°C	0.08 in2 mm· 18%	58%	Drizzle	WSW 8 mph12 km/h
DayMostly cloudy and warm, with a high of 72°F22°C and morning low of 59°F15°C. Breezy from the WSW at 8 to 9 mph13 to 14 km/h. 18% chance of drizzle throughout the day. NightMostly cloudy, with a low around 58°F14°C. Breezy from the SW at 7 mph11 km/h. 16% chance of drizzle throughout the night.
	SundaySep 13	72°F22°C	59°F15°C	0.14 in3.6 mm· 20%	59%	Showers	SW 8 mph13 km/h
DayMostly cloudy and warm, with a high of 72°F22°C and morning low of 60°F15°C. Breezy from the SW at 9 to 10 mph14 to 16 km/h. 20% chance of showers throughout the day. NightMostly cloudy, with a low around 59°F15°C. Breezy from the SW at 7 to 8 mph12 to 12 km/h. 19% chance of showers throughout the night.
	MondaySep 14	72°F22°C	60°F15°C	0.13 in3.4 mm· 19%	59%	Showers	WSW 8 mph12 km/h
DayMostly cloudy and warm, with a high of 72°F22°C and morning low of 60°F16°C. Breezy from the W at 8 to 9 mph14 to 15 km/h. 19% chance of showers throughout the day. NightMostly cloudy, with a low around 60°F15°C. Breezy from the WSW at 7 mph11 km/h. 18% chance of drizzle throughout the night.
	TuesdaySep 15	70°F21°C	57°F14°C	0.09 in2.2 mm· 16%	49%	Drizzle	WNW 7 mph12 km/h
DayMostly cloudy and warm, with a high of 70°F21°C and morning low of 58°F14°C. Breezy from the WNW at 8 to 9 mph13 to 14 km/h. 16% chance of drizzle throughout the day. NightPartly cloudy, with a low around 57°F14°C. Breezy from the WNW at 7 mph11 km/h. 13% chance of drizzle throughout the night.
	WednesdaySep 16	70°F21°C	55°F13°C	0.08 in2 mm· 17%	49%	Drizzle	W 7 mph12 km/h
DayMostly cloudy and warm, with a high of 70°F21°C and morning low of 56°F14°C. Breezy from the W at 8 mph13 km/h. 17% chance of drizzle throughout the day. NightPartly cloudy, with a low around 55°F13°C. Breezy from the W at 7 mph11 km/h. 13% chance of drizzle throughout the night.
	ThursdaySep 17	70°F21°C	55°F13°C	0.05 in1.3 mm· 13%	50%	Drizzle	W 7 mph12 km/h
DayMostly cloudy and warm, with a high of 70°F21°C and morning low of 55°F13°C. Breezy from the W at 8 mph12 km/h. 13% chance of drizzle throughout the day. NightPartly cloudy, with a low around 55°F13°C. Breezy from the WSW at 7 mph11 km/h. 12% chance of drizzle throughout the night.

Nearby Cities

Innisfil10 mi16 km East Gwillimbury10 mi17 km Newmarket14 mi22 km Barrie14 mi23 km Aurora17 mi28 km Whitchurch-Stouffville19 mi30 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: 44.2501°N, 79.4663°W·Elevation: 230m·Timezone: America/Toronto·Population: 21,000