Current Conditions

Bowmanville, Ontario

69°F20°C
Showers

Wind

WSW 6 mph10 km/h

Humidity

96%

Cloud Cover

90%

As of Wednesday, September 2, 2026 at 9:56 PM EDT

Today's Outlook

Night

Mostly cloudy, with a low around 67°F19°C. Light wind from the WNW around 6 mph10 km/h. 26% chance of light rain overnight.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
ShowersHigh 77°F25°CLow 67°F19°CPrecip 0.05 in1.2 mm26%Cloud 64%Wind WNW 6 mph10 km/hThursday: Mostly cloudy and warm, with a high of 77°F25°C and morning low of 67°F20°C. Breezy from the W at 7 to 8 mph11 to 13 km/h. Humid. Thursday Night: Mostly cloudy, with a low around 67°F19°C. Light wind from the WNW around 6 mph10 km/h. 26% chance of light rain overnight.
Partly CloudyHigh 75°F24°CLow 64°F18°CPrecip 0.02 in0.4 mm8%Cloud 53%Wind NW 7 mph11 km/hFriday: Mostly cloudy and warm, with a high of 75°F24°C and morning low of 65°F18°C. Breezy from the NW at 6 to 7 mph9 to 12 km/h. Friday Night: Partly cloudy, with a low around 64°F18°C. Breezy from the NNW at 7 to 8 mph12 to 14 km/h.
ClearHigh 73°F23°CLow 62°F16°CPrecip 0.01 in0.2 mm4%Cloud 34%Wind N 7 mph11 km/hSaturday: Partly cloudy and warm, with a high of 73°F23°C and morning low of 62°F17°C. Breezy from the N at 7 to 8 mph11 to 13 km/h. Saturday Night: Mostly clear, with a low around 62°F16°C. Breezy from the N at 7 to 8 mph11 to 13 km/h.
ClearHigh 72°F22°CLow 61°F16°CPrecip 0 in0.1 mm5%Cloud 29%Wind ENE 6 mph9 km/hSunday: Partly cloudy and warm, with a high of 72°F22°C and morning low of 61°F16°C. Breezy from the E at 6 to 7 mph10 to 12 km/h. Sunday Night: Mostly clear, with a low around 61°F16°C. Breezy from the ENE at 5 to 7 mph9 to 11 km/h.
Partly CloudyHigh 74°F23°CLow 59°F15°CPrecip 0 in0 mmCloud 47%Wind SW 4 mph7 km/hMonday: Mostly cloudy and warm, with a high of 74°F23°C and morning low of 61°F16°C. Light wind from the SSW around 4 mph7 km/h. Monday Night: Partly cloudy, with a low around 59°F15°C. Light wind from the W around 4 mph7 km/h.
Partly CloudyHigh 72°F22°CLow 61°F16°CPrecip 0.02 in0.4 mm9%Cloud 77%Wind E 6 mph10 km/hTuesday: Overcast and warm, with a high of 72°F22°C and morning low of 62°F16°C. Light wind from the E around 6 mph10 km/h. Tuesday Night: Mostly cloudy, with a low around 61°F16°C. Breezy from the E at 6 to 7 mph10 to 12 km/h.
Light RainHigh 77°F25°CLow 65°F18°CPrecip 0.14 in3.5 mm26%Cloud 70%Wind SSW 10 mph16 km/hWednesday: Mostly cloudy and warm, with a high of 77°F25°C and morning low of 66°F19°C. Breezy from the SSW at 10 to 12 mph17 to 19 km/h. 26% chance of light rain throughout the day. Humid. Wednesday Night: Mostly cloudy, with a low around 65°F18°C. Breezy from the SSW at 9 to 10 mph14 to 17 km/h. 24% chance of showers throughout the night.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
ThursdaySep 377°F25°C67°F19°C0.05 in1.2 mm· 26%64%ShowersWNW 6 mph10 km/h
FridaySep 475°F24°C64°F18°C0.02 in0.4 mm· 8%53%Partly CloudyNW 7 mph11 km/h
SaturdaySep 573°F23°C62°F16°C0.01 in0.2 mm· 4%34%ClearN 7 mph11 km/h
SundaySep 672°F22°C61°F16°C0 in0.1 mm· 5%29%ClearENE 6 mph9 km/h
MondaySep 774°F23°C59°F15°C0 in0 mm· —47%Partly CloudySW 4 mph7 km/h
TuesdaySep 872°F22°C61°F16°C0.02 in0.4 mm· 9%77%Partly CloudyE 6 mph10 km/h
WednesdaySep 977°F25°C65°F18°C0.14 in3.5 mm· 26%70%Light RainSSW 10 mph16 km/h
ThursdaySep 1076°F24°C68°F20°C0.22 in5.6 mm· 35%62%ShowersW 11 mph17 km/h
FridaySep 1172°F22°C64°F18°C0.1 in2.5 mm· 18%53%ShowersWNW 9 mph15 km/h
SaturdaySep 1271°F22°C61°F16°C0.08 in2 mm· 13%54%DrizzleWSW 9 mph14 km/h
SundaySep 1372°F22°C62°F16°C0.13 in3.3 mm· 18%56%ShowersSW 9 mph15 km/h
MondaySep 1471°F22°C62°F17°C0.13 in3.2 mm· 18%56%ShowersWSW 9 mph15 km/h
TuesdaySep 1570°F21°C60°F15°C0.08 in2 mm· 14%46%DrizzleWNW 9 mph14 km/h
WednesdaySep 1669°F21°C58°F15°C0.08 in2.1 mm· 17%45%DrizzleWNW 9 mph14 km/h
ThursdaySep 1769°F20°C58°F14°C0.06 in1.6 mm· 15%47%DrizzleWSW 9 mph14 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: 43.9168°N, 78.6829°W·Elevation: 104m·Timezone: America/Toronto·Population: 39,371