Current Conditions

Tam O'Shanter-Sullivan, Ontario

72°F22°C
Cloudy

Wind

SE 7 mph11 km/h

Humidity

68%

Cloud Cover

98%

As of Tuesday, September 8, 2026 at 5:06 PM EDT

Today's Outlook

Day

Overcast and warm, with a high of 72°F22°C. Breezy from the SSE at 6 to 7 mph9 to 11 km/h.

Night

Overcast, with a low around 67°F20°C. Breezy from the SE at 8 mph12 km/h.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
CloudyHigh 72°F22°CLow 67°F20°CPrecip 0 in0 mmCloud 99%Wind SE 7 mph11 km/hTuesday: Overcast and warm, with a high of 72°F22°C. Breezy from the SSE at 6 to 7 mph9 to 11 km/h. Tuesday Night: Overcast, with a low around 67°F20°C. Breezy from the SE at 8 mph12 km/h.
RainHigh 73°F23°CLow 67°F20°CPrecip 0.45 in11.4 mm98%Cloud 92%Wind SW 10 mph17 km/hWednesday: Overcast and warm, with a high of 73°F23°C and morning low of 68°F20°C. Breezy from the SW at 11 to 15 mph18 to 24 km/h. 98% chance of rain throughout the day. Humid. Wednesday Night: Overcast, with a low around 67°F20°C. Breezy from the SW at 9 to 14 mph15 to 22 km/h. 93% chance of rain in the evening.
Partly CloudyHigh 72°F22°CLow 61°F16°CPrecip 0 in0 mmCloud 58%Wind WNW 11 mph17 km/hThursday: Overcast and warm, with a high of 72°F22°C and morning low of 65°F18°C. Breezy from the WNW at 11 to 12 mph18 to 20 km/h. Thursday Night: Partly cloudy, with a low around 61°F16°C. Breezy from the WNW at 10 to 12 mph17 to 19 km/h.
ClearHigh 71°F21°CLow 56°F13°CPrecip 0 in0 mmCloud 8%Wind WSW 7 mph11 km/hFriday: Mostly clear and warm, with a high of 71°F21°C and morning low of 57°F14°C. Breezy from the W at 6 to 7 mph9 to 12 km/h. Friday Night: Mostly clear, with a low around 56°F13°C. Breezy from the WSW at 8 mph12 km/h.
DrizzleHigh 73°F23°CLow 61°F16°CPrecip 0.02 in0.4 mm15%Cloud 47%Wind SSE 8 mph12 km/hSaturday: Partly cloudy and warm, with a high of 73°F23°C and morning low of 62°F16°C. Breezy from the SSE at 8 to 9 mph12 to 15 km/h. Saturday Night: Mostly cloudy, with a low around 61°F16°C. Breezy from the S at 7 to 9 mph12 to 14 km/h. 15% chance of drizzle overnight.
ShowersHigh 73°F23°CLow 62°F17°CPrecip 0.08 in2 mm25%Cloud 48%Wind WNW 10 mph16 km/hSunday: Mostly cloudy and warm, with a high of 73°F23°C and morning low of 66°F19°C. Breezy from the WNW at 10 to 11 mph15 to 18 km/h. 19% chance of drizzle throughout the day. Sunday Night: Partly cloudy, with a low around 62°F17°C. Breezy from the WNW at 10 to 12 mph16 to 19 km/h. 25% chance of showers throughout the night.
Partly CloudyHigh 67°F19°CLow 58°F14°CPrecip 0.02 in0.6 mm6%Cloud 47%Wind NNW 9 mph14 km/hMonday: Mostly cloudy and mild, with a high of 67°F19°C and morning low of 58°F14°C. Breezy from the NNW at 8 to 9 mph13 to 15 km/h. Monday Night: Partly cloudy, with a low around 58°F14°C. Breezy from the NNW at 9 to 11 mph15 to 17 km/h.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
TuesdaySep 872°F22°C67°F20°C0 in0 mm· —99%CloudySE 7 mph11 km/h
WednesdaySep 973°F23°C67°F20°C0.45 in11.4 mm· 98%92%RainSW 10 mph17 km/h
ThursdaySep 1072°F22°C61°F16°C0 in0 mm· —58%Partly CloudyWNW 11 mph17 km/h
FridaySep 1171°F21°C56°F13°C0 in0 mm· —8%ClearWSW 7 mph11 km/h
SaturdaySep 1273°F23°C61°F16°C0.02 in0.4 mm· 15%47%DrizzleSSE 8 mph12 km/h
SundaySep 1373°F23°C62°F17°C0.08 in2 mm· 25%48%ShowersWNW 10 mph16 km/h
MondaySep 1467°F19°C58°F14°C0.02 in0.6 mm· 6%47%Partly CloudyNNW 9 mph14 km/h
TuesdaySep 1573°F23°C61°F16°C0.15 in3.7 mm· 30%68%ShowersS 12 mph19 km/h
WednesdaySep 1671°F21°C63°F17°C0.11 in2.7 mm· 23%62%ShowersW 8 mph14 km/h
ThursdaySep 1770°F21°C62°F16°C0.14 in3.5 mm· 21%66%ShowersSE 9 mph14 km/h
FridaySep 1869°F21°C62°F17°C0.13 in3.3 mm· 22%58%ShowersW 10 mph17 km/h
SaturdaySep 1966°F19°C59°F15°C0.14 in3.5 mm· 21%55%ShowersWNW 11 mph17 km/h
SundaySep 2063°F17°C56°F13°C0.12 in3.1 mm· 19%61%ShowersNNW 10 mph17 km/h
MondaySep 2162°F16°C54°F12°C0.11 in2.9 mm· 21%59%DrizzleN 10 mph16 km/h
TuesdaySep 2262°F17°C53°F12°C0.11 in2.8 mm· 15%52%ShowersNNW 10 mph15 km/h

Nearby Cities

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

PatternExampleDescription
/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=11.5Find 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: 43.7798°N, 79.2950°W·Elevation: 173m·Timezone: America/Toronto·Population: 27,446