Current Conditions

Halton Hills, Ontario

72°F22°C
Rain

Wind

WSW 3 mph5 km/h

Humidity

90%

Cloud Cover

98%

As of Monday, August 31, 2026 at 3:33 PM EDT

Today's Outlook

Day

Overcast and warm, with a high of 72°F22°C. Light wind from the SW around 3 mph6 km/h. 99% chance of rain throughout the day. Humid.

Night

Overcast, with a low around 69°F20°C. Light wind from the SE around 4 mph7 km/h. 71% chance of light rain throughout the night.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
RainHigh 72°F22°CLow 69°F20°CPrecip 0.24 in6.2 mm99%Cloud 98%Wind SSE 4 mph6 km/hMonday: Overcast and warm, with a high of 72°F22°C. Light wind from the SW around 3 mph6 km/h. 99% chance of rain throughout the day. Humid. Monday Night: Overcast, with a low around 69°F20°C. Light wind from the SE around 4 mph7 km/h. 71% chance of light rain throughout the night.
Light RainHigh 81°F27°CFeels 84°F29°CLow 69°F21°CPrecip 0.13 in3.2 mm64%Cloud 81%Wind SE 4 mph7 km/hTuesday: Mostly cloudy and warm, with a high of 81°F27°C and morning low of 70°F21°C. Light wind from the NW around 4 mph6 km/h. 29% chance of light rain throughout the day. Humid. Tuesday Night: Overcast, with a low around 69°F21°C. Light wind from the SE around 5 mph7 km/h. 64% chance of light rain throughout the night.
RainHigh 84°F29°CFeels 88°F31°CLow 68°F20°CPrecip 0.42 in10.6 mm57%Cloud 88%Wind SW 6 mph9 km/hWednesday: Overcast and warm, with a high of 84°F29°C and morning low of 70°F21°C. Breezy from the WSW at 6 to 8 mph10 to 12 km/h. 56% chance of rain throughout the day. Humid. Wednesday Night: Overcast, with a low around 68°F20°C. Light wind from the SW around 5 mph7 km/h. 57% chance of rain throughout the night.
ShowersHigh 80°F27°CLow 65°F18°CPrecip 0.09 in2.3 mm29%Cloud 55%Wind WNW 6 mph9 km/hThursday: Mostly cloudy and warm, with a high of 80°F27°C and morning low of 65°F18°C. Breezy from the WNW at 6 to 8 mph10 to 13 km/h. Thursday Night: Mostly cloudy, with a low around 65°F18°C. Light wind from the NW around 5 mph8 km/h. 29% chance of showers overnight.
ShowersHigh 77°F25°CLow 60°F16°CPrecip 0.07 in1.7 mm17%Cloud 59%Wind NNW 5 mph8 km/hFriday: Mostly cloudy and warm, with a high of 77°F25°C and morning low of 62°F17°C. Light wind from the NNW around 5 mph8 km/h. 17% chance of drizzle in the afternoon. Friday Night: Partly cloudy, with a low around 60°F16°C. Light wind from the NNW around 5 mph8 km/h. 15% chance of showers throughout the night.
ClearHigh 74°F24°CLow 59°F15°CPrecip 0 in0.1 mm3%Cloud 34%Wind NNE 6 mph9 km/hSaturday: Partly cloudy and warm, with a high of 74°F24°C and morning low of 60°F16°C. Light wind from the NNE around 6 mph10 km/h. Saturday Night: Mostly clear, with a low around 59°F15°C. Light wind from the NNE around 5 mph8 km/h.
DrizzleHigh 74°F23°CLow 57°F14°CPrecip 0.02 in0.5 mm12%Cloud 43%Wind ENE 5 mph7 km/hSunday: Mostly cloudy and warm, with a high of 74°F23°C and morning low of 59°F15°C. Light wind from the E around 5 mph8 km/h. 12% chance of drizzle. Sunday Night: Partly cloudy, with a low around 57°F14°C. Light wind from the ENE around 4 mph7 km/h.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
MondayAug 3172°F22°C69°F20°C0.24 in6.2 mm· 99%98%RainSSE 4 mph6 km/h
TuesdaySep 181°F27°C
Feels 84°F29°C
69°F21°C0.13 in3.2 mm· 64%81%Light RainSE 4 mph7 km/h
WednesdaySep 284°F29°C
Feels 88°F31°C
68°F20°C0.42 in10.6 mm· 57%88%RainSW 6 mph9 km/h
ThursdaySep 380°F27°C65°F18°C0.09 in2.3 mm· 29%55%ShowersWNW 6 mph9 km/h
FridaySep 477°F25°C60°F16°C0.07 in1.7 mm· 17%59%ShowersNNW 5 mph8 km/h
SaturdaySep 574°F24°C59°F15°C0 in0.1 mm· 3%34%ClearNNE 6 mph9 km/h
SundaySep 674°F23°C57°F14°C0.02 in0.5 mm· 12%43%DrizzleENE 5 mph7 km/h
MondaySep 776°F25°C57°F14°C0.03 in0.7 mm· 15%46%DrizzleNNE 5 mph7 km/h
TuesdaySep 875°F24°C58°F15°C0.04 in1.1 mm· 12%70%DrizzleSE 6 mph9 km/h
WednesdaySep 978°F26°C62°F17°C0.09 in2.2 mm· 19%67%DrizzleSW 7 mph11 km/h
ThursdaySep 1077°F25°C65°F19°C0.15 in3.7 mm· 29%64%ShowersW 7 mph12 km/h
FridaySep 1174°F23°C63°F17°C0.15 in3.7 mm· 28%62%ShowersW 7 mph12 km/h
SaturdaySep 1273°F23°C60°F16°C0.14 in3.6 mm· 25%58%ShowersW 8 mph12 km/h
SundaySep 1373°F23°C58°F14°C0.13 in3.2 mm· 19%55%ShowersWSW 7 mph12 km/h
MondaySep 1474°F24°C58°F15°C0.05 in1.3 mm· 14%51%DrizzleWSW 7 mph11 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: 43.6403°N, 79.9315°W·Elevation: 262m·Timezone: America/Toronto·Population: 62,951