Current Conditions

Ancaster, Ontario

55°F13°C
Light Rain

Wind

WNW 5 mph8 km/h

Humidity

98%

Cloud Cover

81%

As of Monday, October 12, 2026 at 4:12 AM EDT

Today's Outlook

Night

Overcast, with a low around 56°F13°C. Light wind from the NE around 5 mph8 km/h. 88% chance of light rain in the evening.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
Light RainHigh 57°F14°CLow 56°F13°CPrecip 0.1 in2.5 mm88%Cloud 83%Wind NE 5 mph8 km/hSunday Night: Overcast, with a low around 56°F13°C. Light wind from the NE around 5 mph8 km/h. 88% chance of light rain in the evening.
Partly CloudyHigh 69°F20°CLow 55°F13°CPrecip 0 in0 mm—Cloud 67%Wind WSW 8 mph13 km/hMonday: Overcast and warm, with a high of 69°F20°C and morning low of 56°F13°C. Breezy from the WSW at 9 to 11 mph14 to 18 km/h. Monday Night: Mostly cloudy, with a low around 55°F13°C. Breezy from the WSW at 7 to 11 mph12 to 17 km/h.
DrizzleHigh 77°F25°CLow 65°F18°CPrecip 0.04 in1 mm28%Cloud 34%Wind WSW 12 mph19 km/hTuesday: Partly cloudy and warm, with a high of 77°F25°C and morning low of 66°F19°C. Breezy from the SW at 13 to 15 mph21 to 24 km/h. 28% chance of drizzle in the morning. Tuesday Night: Partly cloudy, with a low around 65°F18°C. Breezy from the WSW at 11 to 12 mph17 to 19 km/h. 26% chance of drizzle before dawn.
DrizzleHigh 65°F18°CLow 53°F12°CPrecip 0.03 in0.7 mm18%Cloud 76%Wind WNW 8 mph13 km/hWednesday: Overcast and mild, with a high of 62°F16°C. Breezy from the WNW at 8 to 9 mph13 to 15 km/h. 18% chance of drizzle in the morning. Wednesday Night: Mostly cloudy, with a low around 53°F12°C. Breezy from the NW at 8 to 9 mph13 to 15 km/h.
Light RainHigh 53°F12°CLow 47°F9°CFeels 43°F6°CPrecip 0.1 in2.6 mm56%Cloud 94%Wind ENE 8 mph14 km/hThursday: Overcast and mild, with a high of 52°F11°C. Breezy from the ENE at 9 mph14 km/h. 19% chance of drizzle in the afternoon. Dry air. Thursday Night: Overcast, with a low around 48°F9°C. Breezy from the NE at 8 to 9 mph13 to 14 km/h. 56% chance of light rain in the evening.
Light RainHigh 54°F12°CLow 42°F6°CFeels 36°F2°CPrecip 0.32 in8.1 mm82%Cloud 74%Wind WNW 12 mph19 km/hFriday: Overcast and mild, with a high of 54°F12°C. Windy from the WNW at 13 to 16 mph21 to 25 km/h. 82% chance of light rain in the morning. Dry air. Friday Night: Mostly cloudy, with a low around 42°F6°C. Breezy from the NW at 10 to 14 mph17 to 23 km/h. 79% chance of showers overnight.
ClearHigh 50°F10°CFeels 45°F7°CLow 35°F2°CFeels 28°F-2°CPrecip 0.01 in0.3 mm6%Cloud 34%Wind WNW 11 mph17 km/hSaturday: Partly cloudy and cool, with a high of 50°F10°C and morning low of 35°F2°C. Breezy from the WNW at 11 to 13 mph18 to 21 km/h. Very dry. Saturday Night: Partly cloudy, with a low around 36°F2°C. Breezy from the WNW at 10 to 12 mph16 to 19 km/h.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
SundayOct 1157°F14°C56°F13°C0.1 in2.5 mm· 88%83%Light RainNE 5 mph8 km/h
MondayOct 1269°F20°C55°F13°C0 in0 mm· —67%Partly CloudyWSW 8 mph13 km/h
TuesdayOct 1377°F25°C65°F18°C0.04 in1 mm· 28%34%DrizzleWSW 12 mph19 km/h
WednesdayOct 1465°F18°C53°F12°C0.03 in0.7 mm· 18%76%DrizzleWNW 8 mph13 km/h
ThursdayOct 1553°F12°C47°F9°C
Feels 43°F6°C
0.1 in2.6 mm· 56%94%Light RainENE 8 mph14 km/h
FridayOct 1654°F12°C42°F6°C
Feels 36°F2°C
0.32 in8.1 mm· 82%74%Light RainWNW 12 mph19 km/h
SaturdayOct 1750°F10°C
Feels 45°F7°C
35°F2°C
Feels 28°F-2°C
0.01 in0.3 mm· 6%34%ClearWNW 11 mph17 km/h
SundayOct 1854°F12°C36°F2°C
Feels 30°F-1°C
0.01 in0.3 mm· 3%20%ClearWSW 9 mph14 km/h
MondayOct 1959°F15°C41°F5°C
Feels 36°F2°C
0.04 in0.9 mm· 9%57%Partly CloudySSW 9 mph14 km/h
TuesdayOct 2062°F17°C48°F9°C
Feels 44°F7°C
0.02 in0.6 mm· 11%44%DrizzleWSW 7 mph11 km/h
WednesdayOct 2161°F16°C46°F8°C
Feels 43°F6°C
0.02 in0.6 mm· 9%44%Partly CloudySE 7 mph11 km/h
ThursdayOct 2262°F16°C49°F9°C
Feels 45°F7°C
0.1 in2.6 mm· 19%61%ShowersSW 8 mph14 km/h
FridayOct 2358°F15°C49°F9°C
Feels 45°F7°C
0.09 in2.4 mm· 21%69%DrizzleWSW 9 mph14 km/h
SaturdayOct 2457°F14°C46°F8°C
Feels 42°F6°C
0.1 in2.5 mm· 20%67%DrizzleWSW 9 mph14 km/h
SundayOct 2556°F13°C45°F7°C
Feels 41°F5°C
0.09 in2.4 mm· 19%59%DrizzleWSW 9 mph14 km/h

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About This Forecast

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