Current Conditions

Ancaster, Ontario

43°F6°C
Drizzle is likely

Feels like38°F3°C

Drizzle is likely. Temperatures will hold near 44°F, feeling as cold as 39°F. Cloudy, with a breeze from the NE at 9 mph.Drizzle is likely. Temperatures will hold near 7°C, feeling as cold as 4°C. Cloudy, with a breeze from the NE at 14 km/h.

Wind

NE 9 mph15 km/h

Humidity

94%

Cloud Cover

99%

As of Thursday, November 12, 2026 at 1:46 AM EST

Today's Outlook

Day

Drizzle is likely for much of the day. Temperatures will hold near 43°F, feeling as cold as 35°F. Cloudy, with a strong breeze from the NE at 13–14 mph.Drizzle is likely for much of the day. Temperatures will hold near 6°C, feeling as cold as 2°C. Cloudy, with a strong breeze from the NE at 21–23 km/h.

Night

A breeze from the N at 10–12 mph. Temperatures will range from 33°F to 42°F, feeling as cold as 25°F. Mostly cloudy.A breeze from the N at 16–19 km/h. Temperatures will range from 1°C to 6°C, feeling as cold as -4°C. Mostly cloudy.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
DrizzleHigh 45°F7°CFeels 40°F4°CLow 37°F3°CFeels 30°F-1°CPrecip 0.09 in2.2 mm86%Cloud 88%Wind NE 11 mph18 km/hDrizzle is likely for much of the day. Temperatures will hold near 43°F, feeling as cold as 35°F. Cloudy, with a strong breeze from the NE at 13–14 mph.Drizzle is likely for much of the day. Temperatures will hold near 6°C, feeling as cold as 2°C. Cloudy, with a strong breeze from the NE at 21–23 km/h.A breeze from the N at 10–12 mph. Temperatures will range from 33°F to 42°F, feeling as cold as 25°F. Mostly cloudy.A breeze from the N at 16–19 km/h. Temperatures will range from 1°C to 6°C, feeling as cold as -4°C. Mostly cloudy.
BreezeHigh 39°F4°CFeels 34°F1°CLow 33°F0°CFeels 25°F-4°CPrecip 0.01 in0.3 mm8%Cloud 57%Wind NNW 8 mph13 km/hA breeze from the NNW at 8–9 mph, and there is a marginal chance of flurries around midday. Temperatures will range from 33°F to 39°F, feeling as cold as 26°F. Partly cloudy.A breeze from the NNW at 13–14 km/h, and there is a marginal chance of flurries around midday. Temperatures will range from 1°C to 4°C, feeling as cold as -3°C. Partly cloudy.Below freezing, with a low around 31°F, feeling as cold as 24°F. There is a marginal chance of flurries before dawn. Partly cloudy, with a breeze from the WNW at 8 mph.Below freezing, with a low around -1°C, feeling as cold as -4°C. There is a marginal chance of flurries before dawn. Partly cloudy, with a breeze from the WNW at 13 km/h.
Below freezingHigh 42°F5°CFeels 35°F2°CLow 31°F0°CFeels 24°F-4°CPrecip 0.02 in0.5 mm21%Cloud 71%Wind WNW 9 mph14 km/hThere is a low chance of drizzle for much of the day. Temperatures will range from 33°F to 42°F, feeling as cold as 27°F. Mostly cloudy, with a breeze from the NW at 10–11 mph.There is a low chance of drizzle for much of the day. Temperatures will range from 1°C to 6°C, feeling as cold as -3°C. Mostly cloudy, with a breeze from the NW at 16–18 km/h.A breeze from the WNW at 9–10 mph. Temperatures will range from 36°F to 41°F, feeling as cold as 29°F. Mostly cloudy.A breeze from the WNW at 14–16 km/h. Temperatures will range from 2°C to 5°C, feeling as cold as -2°C. Mostly cloudy.
BreezeHigh 43°F6°CFeels 38°F3°CLow 36°F2°CFeels 29°F-2°CPrecip 0 in0.1 mm3%Cloud 76%Wind WNW 8 mph13 km/hA breeze from the WNW at 9–10 mph. Temperatures will range from 37°F to 43°F, feeling as cold as 31°F. Mostly cloudy.A breeze from the WNW at 14–16 km/h. Temperatures will range from 3°C to 6°C, feeling as cold as -1°C. Mostly cloudy.A breeze from the W at 7–9 mph. Temperatures will range from 36°F to 42°F, feeling as cold as 30°F. Partly cloudy.A breeze from the W at 11–14 km/h. Temperatures will range from 2°C to 6°C, feeling as cold as -1°C. Partly cloudy.
BreezeHigh 47°F8°CFeels 42°F6°CLow 36°F2°CFeels 30°F-1°CPrecip 0 in0 mm—Cloud 50%Wind WSW 8 mph12 km/hA breeze from the WSW at 8–9 mph. Temperatures will range from 37°F to 47°F, feeling as cold as 31°F. Partly cloudy.A breeze from the WSW at 13–14 km/h. Temperatures will range from 3°C to 8°C, feeling as cold as -1°C. Partly cloudy.A breeze from the WSW at 8 mph. Temperatures will range from 33°F to 44°F, feeling as cold as 26°F. Mostly clear.A breeze from the WSW at 13 km/h. Temperatures will range from 1°C to 7°C, feeling as cold as -3°C. Mostly clear.
BreezeHigh 52°F11°CLow 33°F0°CFeels 26°F-4°CPrecip 0 in0 mm—Cloud 13%Wind WSW 8 mph14 km/hA breeze from the WSW at 9–10 mph. Temperatures will range from 33°F to 52°F, feeling as cold as 27°F. Mostly clear.A breeze from the WSW at 14–16 km/h. Temperatures will range from 1°C to 11°C, feeling as cold as -3°C. Mostly clear.A breeze from the WSW at 8–9 mph. Temperatures will range from 32°F to 48°F, feeling as cold as 25°F. Clear.A breeze from the WSW at 13–14 km/h. Temperatures will range from 0°C to 9°C, feeling as cold as -4°C. Clear.
BreezeHigh 52°F11°CLow 32°F0°CFeels 25°F-4°CPrecip 0 in0 mm—Cloud 21%Wind WSW 8 mph12 km/hA breeze from the WSW at 8 mph. Temperatures will range from 33°F to 52°F, feeling as cold as 26°F. Mostly clear.A breeze from the WSW at 13 km/h. Temperatures will range from 1°C to 11°C, feeling as cold as -3°C. Mostly clear.A breeze from the SW at 7–8 mph, and there is a marginal chance of brief drizzle in the morning. Temperatures will range from 34°F to 49°F, feeling as cold as 28°F. Mostly clear.A breeze from the SW at 11–13 km/h, and there is a marginal chance of brief drizzle in the morning. Temperatures will range from 1°C to 9°C, feeling as cold as -2°C. Mostly clear.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
ThursdayNov 1245°F7°C
Feels 40°F4°C
37°F3°C
Feels 30°F-1°C
0.09 in2.2 mm· 86%88%DrizzleNE 11 mph18 km/h
FridayNov 1339°F4°C
Feels 34°F1°C
33°F0°C
Feels 25°F-4°C
0.01 in0.3 mm· 8%57%BreezeNNW 8 mph13 km/h
SaturdayNov 1442°F5°C
Feels 35°F2°C
31°F0°C
Feels 24°F-4°C
0.02 in0.5 mm· 21%71%Below freezingWNW 9 mph14 km/h
SundayNov 1543°F6°C
Feels 38°F3°C
36°F2°C
Feels 29°F-2°C
0 in0.1 mm· 3%76%BreezeWNW 8 mph13 km/h
MondayNov 1647°F8°C
Feels 42°F6°C
36°F2°C
Feels 30°F-1°C
0 in0 mm· —50%BreezeWSW 8 mph12 km/h
TuesdayNov 1752°F11°C33°F0°C
Feels 26°F-4°C
0 in0 mm· —13%BreezeWSW 8 mph14 km/h
WednesdayNov 1852°F11°C32°F0°C
Feels 25°F-4°C
0 in0 mm· —21%BreezeWSW 8 mph12 km/h
ThursdayNov 1954°F12°C34°F1°C
Feels 28°F-2°C
0.04 in1.1 mm· 21%69%Low chance of light rainSW 8 mph13 km/h
FridayNov 2054°F12°C44°F7°C
Feels 39°F4°C
0.06 in1.4 mm· 17%73%Low chance of light rainWSW 9 mph14 km/h
SaturdayNov 2153°F12°C42°F6°C
Feels 38°F3°C
0.06 in1.6 mm· 21%80%Low chance of light rainSW 9 mph14 km/h
SundayNov 2250°F10°C
Feels 46°F8°C
42°F6°C
Feels 36°F2°C
0.22 in5.7 mm· 39%84%Medium chance of light rainSW 10 mph17 km/h
MondayNov 2343°F6°C
Feels 37°F3°C
36°F2°C
Feels 29°F-2°C
0.11 in2.8 mm· 24%77%Low chance of light rainW 10 mph15 km/h
TuesdayNov 2440°F4°C
Feels 34°F1°C
32°F0°C
Feels 25°F-4°C
0.06 in1.6 mm· 15%67%Low chance of drizzleW 9 mph14 km/h
WednesdayNov 2540°F4°C
Feels 34°F1°C
32°F0°C
Feels 25°F-4°C
0.09 in2.4 mm· 14%67%BreezeW 8 mph13 km/h
ThursdayNov 2640°F5°C
Feels 34°F1°C
32°F0°C
Feels 25°F-4°C
0.06 in1.6 mm· 14%69%BreezeW 8 mph14 km/h

Nearby Cities

About This Forecast

This forecast is powered by WindBorne MetaMesh, with local forecasts and detailed descriptions for day and night.

Explore WindBorne's weather-model benchmarks. View Benchmarks →

Access these 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: 43.2181°N, 79.9872°W·Elevation: 253m·Timezone: America/Toronto·Population: 40,557