Current Conditions

Alta Vista, Ontario

67°F19°C

Light Rain

Wind

NNE 3 mph5 km/h

Humidity

80%

Cloud Cover

87%

As of Tuesday, September 8, 2026 at 11:44 AM EDT

Today's Outlook

Day

Overcast and warm, with a high of 72°F22°C and morning low of 60°F15°C. Light wind from the NNE around 3 mph4 km/h. 88% chance of light rain throughout the day.

Night

Overcast, with a low around 61°F16°C. Light wind from the SE around 4 mph7 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Light Rain	High 72°F22°C	Low 60°F15°C	Precip 0.08 in2 mm88%	Cloud 94%	Wind E 3 mph5 km/h	Tuesday: Overcast and warm, with a high of 72°F22°C and morning low of 60°F15°C. Light wind from the NNE around 3 mph4 km/h. 88% chance of light rain throughout the day. Tuesday Night: Overcast, with a low around 61°F16°C. Light wind from the SE around 4 mph7 km/h.
Rain	High 70°F21°C	Low 60°F15°C	Precip 0.56 in14.2 mm99%	Cloud 98%	Wind S 8 mph13 km/h	Wednesday: Overcast and mild, with a high of 67°F20°C and morning low of 61°F16°C. Breezy from the S at 8 to 10 mph13 to 17 km/h. 99% chance of rain throughout the day. Wednesday Night: Overcast, with a low around 60°F15°C. Breezy from the SSW at 8 to 11 mph13 to 17 km/h. 98% chance of rain in the evening.
Partly Cloudy	High 72°F22°C	Low 57°F14°C	Precip 0 in0.1 mm9%	Cloud 49%	Wind W 10 mph16 km/h	Thursday: Mostly cloudy and warm, with a high of 72°F22°C and morning low of 62°F17°C. Breezy from the W at 12 to 14 mph19 to 23 km/h. Thursday Night: Partly cloudy, with a low around 57°F14°C. Breezy from the W at 9 to 10 mph14 to 17 km/h.
Clear	High 71°F22°C	Low 49°F9°CFeels 46°F8°C	Precip 0 in0 mm—	Cloud 8%	Wind W 6 mph10 km/h	Friday: Mostly clear and warm, with a high of 71°F22°C and morning low of 51°F10°C. Breezy from the WNW at 7 mph11 km/h. Dry air. Friday Night: Mostly clear, with a low around 49°F9°C. Light wind from the WSW around 6 mph9 km/h.
Drizzle	High 77°F25°C	Low 50°F10°C	Precip 0.02 in0.4 mm13%	Cloud 39%	Wind S 7 mph11 km/h	Saturday: Partly cloudy and warm, with a high of 77°F25°C and morning low of 53°F12°C. Breezy from the S at 7 to 9 mph12 to 15 km/h. Saturday Night: Partly cloudy, with a low around 50°F10°C. Breezy from the SSW at 6 to 8 mph10 to 13 km/h. 13% chance of drizzle overnight.
Showers	High 73°F23°C	Low 59°F15°C	Precip 0.24 in6.2 mm50%	Cloud 65%	Wind WSW 8 mph13 km/h	Sunday: Mostly cloudy and warm, with a high of 73°F23°C and morning low of 66°F19°C. Breezy from the W at 8 to 9 mph13 to 15 km/h. 50% chance of showers throughout the day. Sunday Night: Mostly cloudy, with a low around 59°F15°C. Breezy from the WSW at 8 mph12 km/h. 38% chance of showers throughout the night.
Partly Cloudy	High 65°F19°C	Low 52°F11°C	Precip 0.04 in0.9 mm8%	Cloud 45%	Wind NW 7 mph11 km/h	Monday: Mostly cloudy and mild, with a high of 65°F19°C and morning low of 53°F12°C. Breezy from the NW at 8 mph12 km/h. Dry air. Monday Night: Partly cloudy, with a low around 52°F11°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	72°F22°C	60°F15°C	0.08 in2 mm· 88%	94%	Light Rain	E 3 mph5 km/h
DayOvercast and warm, with a high of 72°F22°C and morning low of 60°F15°C. Light wind from the NNE around 3 mph4 km/h. 88% chance of light rain throughout the day. NightOvercast, with a low around 61°F16°C. Light wind from the SE around 4 mph7 km/h.
	WednesdaySep 9	70°F21°C	60°F15°C	0.56 in14.2 mm· 99%	98%	Rain	S 8 mph13 km/h
DayOvercast and mild, with a high of 67°F20°C and morning low of 61°F16°C. Breezy from the S at 8 to 10 mph13 to 17 km/h. 99% chance of rain throughout the day. NightOvercast, with a low around 60°F15°C. Breezy from the SSW at 8 to 11 mph13 to 17 km/h. 98% chance of rain in the evening.
	ThursdaySep 10	72°F22°C	57°F14°C	0 in0.1 mm· 9%	49%	Partly Cloudy	W 10 mph16 km/h
DayMostly cloudy and warm, with a high of 72°F22°C and morning low of 62°F17°C. Breezy from the W at 12 to 14 mph19 to 23 km/h. NightPartly cloudy, with a low around 57°F14°C. Breezy from the W at 9 to 10 mph14 to 17 km/h.
	FridaySep 11	71°F22°C	49°F9°C Feels 46°F8°C	0 in0 mm· —	8%	Clear	W 6 mph10 km/h
DayMostly clear and warm, with a high of 71°F22°C and morning low of 51°F10°C. Breezy from the WNW at 7 mph11 km/h. Dry air. NightMostly clear, with a low around 49°F9°C. Light wind from the WSW around 6 mph9 km/h.
	SaturdaySep 12	77°F25°C	50°F10°C	0.02 in0.4 mm· 13%	39%	Drizzle	S 7 mph11 km/h
DayPartly cloudy and warm, with a high of 77°F25°C and morning low of 53°F12°C. Breezy from the S at 7 to 9 mph12 to 15 km/h. NightPartly cloudy, with a low around 50°F10°C. Breezy from the SSW at 6 to 8 mph10 to 13 km/h. 13% chance of drizzle overnight.
	SundaySep 13	73°F23°C	59°F15°C	0.24 in6.2 mm· 50%	65%	Showers	WSW 8 mph13 km/h
DayMostly cloudy and warm, with a high of 73°F23°C and morning low of 66°F19°C. Breezy from the W at 8 to 9 mph13 to 15 km/h. 50% chance of showers throughout the day. NightMostly cloudy, with a low around 59°F15°C. Breezy from the WSW at 8 mph12 km/h. 38% chance of showers throughout the night.
	MondaySep 14	65°F19°C	52°F11°C	0.04 in0.9 mm· 8%	45%	Partly Cloudy	NW 7 mph11 km/h
DayMostly cloudy and mild, with a high of 65°F19°C and morning low of 53°F12°C. Breezy from the NW at 8 mph12 km/h. Dry air. NightPartly cloudy, with a low around 52°F11°C. Breezy from the NW at 6 to 7 mph10 to 12 km/h.
	TuesdaySep 15	71°F22°C	49°F10°C	0.16 in4 mm· 32%	63%	Showers	S 7 mph12 km/h
DayMostly cloudy and warm, with a high of 71°F22°C and morning low of 52°F11°C. Breezy from the S at 8 to 9 mph12 to 14 km/h. 26% chance of showers throughout the day. NightMostly cloudy, with a low around 49°F10°C. Breezy from the S at 7 to 8 mph11 to 13 km/h. 32% chance of showers throughout the night.
	WednesdaySep 16	71°F22°C	58°F14°C	0.14 in3.6 mm· 27%	66%	Showers	WSW 7 mph11 km/h
DayMostly cloudy and warm, with a high of 71°F22°C and morning low of 58°F14°C. Breezy from the WSW at 7 mph11 km/h. 19% chance of drizzle throughout the day. NightMostly cloudy, with a low around 58°F14°C. Breezy from the SW at 7 to 8 mph11 to 12 km/h. 27% chance of showers throughout the night.
	ThursdaySep 17	71°F21°C	56°F13°C	0.11 in2.8 mm· 22%	67%	Showers	SSW 6 mph10 km/h
DayMostly cloudy and warm, with a high of 71°F21°C and morning low of 57°F14°C. Light wind from the SSW around 6 mph10 km/h. 18% chance of drizzle throughout the day. NightMostly cloudy, with a low around 56°F13°C. Breezy from the SSW at 6 to 7 mph10 to 11 km/h. 22% chance of showers throughout the night.
	FridaySep 18	69°F20°C	58°F14°C	0.18 in4.6 mm· 28%	67%	Showers	WSW 8 mph12 km/h
DayMostly cloudy and warm, with a high of 69°F20°C and morning low of 59°F15°C. Breezy from the W at 8 to 9 mph13 to 14 km/h. 28% chance of light rain throughout the day. NightMostly cloudy, with a low around 58°F14°C. Breezy from the WSW at 7 to 8 mph12 to 12 km/h. 23% chance of showers throughout the night.
	SaturdaySep 19	67°F19°C	54°F12°C	0.12 in3.1 mm· 18%	56%	Drizzle	W 7 mph12 km/h
DayMostly cloudy and mild, with a high of 67°F19°C and morning low of 55°F13°C. Breezy from the W at 8 to 9 mph13 to 14 km/h. 18% chance of drizzle throughout the day. Dry air. NightMostly cloudy, with a low around 54°F12°C. Breezy from the W at 7 mph11 km/h. 16% chance of drizzle throughout the night.
	SundaySep 20	62°F17°C	50°F10°C Feels 47°F8°C	0.13 in3.2 mm· 18%	62%	Showers	WNW 7 mph11 km/h
DayMostly cloudy and mild, with a high of 62°F17°C and morning low of 50°F10°C. Breezy from the WNW at 7 to 8 mph12 to 13 km/h. 18% chance of drizzle throughout the day. Dry air. NightMostly cloudy, with a low around 50°F10°C. Breezy from the WNW at 7 mph11 km/h. 18% chance of showers throughout the night.
	MondaySep 21	61°F16°C	46°F8°C Feels 43°F6°C	0.13 in3.2 mm· 18%	57%	Showers	NW 6 mph10 km/h
DayMostly cloudy and mild, with a high of 61°F16°C and morning low of 47°F8°C. Breezy from the NW at 6 to 7 mph10 to 11 km/h. 18% chance of showers throughout the day. Dry air. NightMostly cloudy, with a low around 46°F8°C. Light wind from the NW around 6 mph10 km/h. 15% chance of drizzle throughout the night.
	TuesdaySep 22	63°F17°C	46°F8°C Feels 43°F6°C	0.1 in2.5 mm· 16%	53%	Drizzle	W 6 mph10 km/h
DayMostly cloudy and mild, with a high of 63°F17°C and morning low of 47°F8°C. Breezy from the W at 6 to 7 mph10 to 11 km/h. 16% chance of drizzle throughout the day. Dry air. NightMostly cloudy, with a low around 46°F8°C. Light wind from the W around 6 mph10 km/h. 16% chance of drizzle throughout the night.

Nearby Cities

Ottawa South1 mi2 km Ottawa3 mi4 km Centretown3 mi4 km Gloucester3 mi4 km Vanier4 mi6 km Hull4 mi6 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: 45.3864°N, 75.6581°W·Elevation: 95m·Timezone: America/Toronto·Population: 24,726