Current Conditions

Ancaster, Ontario

77°F25°C

Rain

Wind

SW 8 mph12 km/h

Humidity

68%

Cloud Cover

81%

As of Wednesday, August 12, 2026 at 3:21 PM EDT

Today's Outlook

Day

Mostly cloudy and warm, with a high of 77°F25°C. Breezy from the SW at 8 mph12 km/h. 87% chance of light rain throughout the day. Humid.

Night

Partly cloudy, with a low around 67°F20°C. Light wind from the WSW around 4 mph6 km/h. 81% chance of rain throughout the night.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Rain	High 77°F25°C	Low 67°F20°C	Precip 0.27 in6.9 mm87%	Cloud 56%	Wind WSW 6 mph9 km/h	Wednesday: Mostly cloudy and warm, with a high of 77°F25°C. Breezy from the SW at 8 mph12 km/h. 87% chance of light rain throughout the day. Humid. Wednesday Night: Partly cloudy, with a low around 67°F20°C. Light wind from the WSW around 4 mph6 km/h. 81% chance of rain throughout the night.
Partly Cloudy	High 82°F28°C	Low 62°F17°C	Precip 0 in0 mm—	Cloud 61%	Wind NW 6 mph9 km/h	Thursday: Mostly cloudy and warm, with a high of 82°F28°C and morning low of 65°F18°C. Breezy from the WNW at 6 to 8 mph10 to 13 km/h. Thursday Night: Partly cloudy, with a low around 62°F17°C. Light wind from the NW around 5 mph8 km/h.
Partly Cloudy	High 82°F28°C	Low 60°F15°C	Precip 0 in0.1 mm8%	Cloud 43%	Wind NNW 4 mph7 km/h	Friday: Mostly cloudy and warm, with a high of 82°F28°C and morning low of 64°F18°C. Light wind from the NW around 4 mph7 km/h. Friday Night: Partly cloudy, with a low around 60°F15°C. Light wind from the N around 5 mph8 km/h.
Clear	High 78°F26°C	Low 61°F16°C	Precip 0 in0 mm—	Cloud 34%	Wind ENE 6 mph10 km/h	Saturday: Partly cloudy and warm, with a high of 78°F26°C and morning low of 65°F18°C. Light wind from the E around 6 mph10 km/h. Saturday Night: Partly cloudy, with a low around 61°F16°C. Light wind from the ENE around 6 mph9 km/h.
Light Rain	High 79°F26°C	Low 64°F18°C	Precip 0.17 in4.3 mm52%	Cloud 72%	Wind WSW 6 mph9 km/h	Sunday: Mostly cloudy and warm, with a high of 79°F26°C and morning low of 67°F19°C. Breezy from the SW at 6 to 8 mph10 to 12 km/h. 52% chance of light rain throughout the day. Humid. Sunday Night: Mostly cloudy, with a low around 64°F18°C. Light wind from the NE around 5 mph8 km/h. 37% chance of showers in the evening.
Drizzle	High 78°F26°C	Low 66°F19°C	Precip 0.07 in1.8 mm22%	Cloud 64%	Wind N 6 mph9 km/h	Monday: Mostly cloudy and warm, with a high of 78°F26°C and morning low of 68°F20°C. Breezy from the N at 6 to 7 mph10 to 11 km/h. 19% chance of drizzle throughout the day. Monday Night: Mostly cloudy, with a low around 66°F19°C. Light wind from the NNW around 5 mph9 km/h. 22% chance of drizzle overnight.
Partly Cloudy	High 80°F27°C	Low 60°F16°C	Precip 0.01 in0.2 mm8%	Cloud 46%	Wind WNW 4 mph7 km/h	Tuesday: Mostly cloudy and warm, with a high of 80°F27°C and morning low of 63°F17°C. Light wind from the NW around 4 mph6 km/h. Tuesday Night: Partly cloudy, with a low around 60°F16°C. Light wind from the WNW around 5 mph8 km/h.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	WednesdayAug 12	77°F25°C	67°F20°C	0.27 in6.9 mm· 87%	56%	Rain	WSW 6 mph9 km/h
DayMostly cloudy and warm, with a high of 77°F25°C. Breezy from the SW at 8 mph12 km/h. 87% chance of light rain throughout the day. Humid. NightPartly cloudy, with a low around 67°F20°C. Light wind from the WSW around 4 mph6 km/h. 81% chance of rain throughout the night.
	ThursdayAug 13	82°F28°C	62°F17°C	0 in0 mm· —	61%	Partly Cloudy	NW 6 mph9 km/h
DayMostly cloudy and warm, with a high of 82°F28°C and morning low of 65°F18°C. Breezy from the WNW at 6 to 8 mph10 to 13 km/h. NightPartly cloudy, with a low around 62°F17°C. Light wind from the NW around 5 mph8 km/h.
	FridayAug 14	82°F28°C	60°F15°C	0 in0.1 mm· 8%	43%	Partly Cloudy	NNW 4 mph7 km/h
DayMostly cloudy and warm, with a high of 82°F28°C and morning low of 64°F18°C. Light wind from the NW around 4 mph7 km/h. NightPartly cloudy, with a low around 60°F15°C. Light wind from the N around 5 mph8 km/h.
	SaturdayAug 15	78°F26°C	61°F16°C	0 in0 mm· —	34%	Clear	ENE 6 mph10 km/h
DayPartly cloudy and warm, with a high of 78°F26°C and morning low of 65°F18°C. Light wind from the E around 6 mph10 km/h. NightPartly cloudy, with a low around 61°F16°C. Light wind from the ENE around 6 mph9 km/h.
	SundayAug 16	79°F26°C	64°F18°C	0.17 in4.3 mm· 52%	72%	Light Rain	WSW 6 mph9 km/h
DayMostly cloudy and warm, with a high of 79°F26°C and morning low of 67°F19°C. Breezy from the SW at 6 to 8 mph10 to 12 km/h. 52% chance of light rain throughout the day. Humid. NightMostly cloudy, with a low around 64°F18°C. Light wind from the NE around 5 mph8 km/h. 37% chance of showers in the evening.
	MondayAug 17	78°F26°C	66°F19°C	0.07 in1.8 mm· 22%	64%	Drizzle	N 6 mph9 km/h
DayMostly cloudy and warm, with a high of 78°F26°C and morning low of 68°F20°C. Breezy from the N at 6 to 7 mph10 to 11 km/h. 19% chance of drizzle throughout the day. NightMostly cloudy, with a low around 66°F19°C. Light wind from the NNW around 5 mph9 km/h. 22% chance of drizzle overnight.
	TuesdayAug 18	80°F27°C	60°F16°C	0.01 in0.2 mm· 8%	46%	Partly Cloudy	WNW 4 mph7 km/h
DayMostly cloudy and warm, with a high of 80°F27°C and morning low of 63°F17°C. Light wind from the NW around 4 mph6 km/h. NightPartly cloudy, with a low around 60°F16°C. Light wind from the WNW around 5 mph8 km/h.
	WednesdayAug 19	80°F27°C	62°F17°C	0.11 in2.8 mm· 28%	63%	Showers	SW 7 mph11 km/h
DayMostly cloudy and warm, with a high of 80°F27°C and morning low of 66°F19°C. Breezy from the SW at 8 to 10 mph13 to 16 km/h. 26% chance of showers throughout the day. NightMostly cloudy, with a low around 62°F17°C. Breezy from the SW at 6 to 7 mph9 to 11 km/h. 28% chance of showers in the evening.
	ThursdayAug 20	79°F26°C	67°F19°C	0.19 in4.7 mm· 33%	60%	Showers	W 8 mph12 km/h
DayMostly cloudy and warm, with a high of 79°F26°C and morning low of 68°F20°C. Breezy from the W at 8 to 9 mph13 to 14 km/h. 27% chance of showers throughout the day. NightMostly cloudy, with a low around 67°F19°C. Breezy from the W at 7 mph11 km/h. 33% chance of showers throughout the night.
	FridayAug 21	78°F26°C	62°F17°C	0.07 in1.8 mm· 16%	49%	Drizzle	W 7 mph11 km/h
DayMostly cloudy and warm, with a high of 78°F26°C and morning low of 64°F18°C. Breezy from the W at 7 to 8 mph11 to 12 km/h. 16% chance of drizzle throughout the day. NightPartly cloudy, with a low around 62°F17°C. Light wind from the WNW around 6 mph10 km/h. 13% chance of drizzle throughout the night.
	SaturdayAug 22	77°F25°C	61°F16°C	0.09 in2.4 mm· 18%	50%	Drizzle	WNW 6 mph10 km/h
DayMostly cloudy and warm, with a high of 77°F25°C and morning low of 63°F17°C. Breezy from the W at 6 to 7 mph10 to 11 km/h. 18% chance of drizzle throughout the day. NightPartly cloudy, with a low around 61°F16°C. Light wind from the WNW around 6 mph9 km/h. 12% chance of drizzle throughout the night.
	SundayAug 23	77°F25°C	61°F16°C	0.1 in2.6 mm· 22%	50%	Drizzle	WNW 6 mph10 km/h
DayMostly cloudy and warm, with a high of 77°F25°C and morning low of 63°F17°C. Breezy from the WNW at 7 mph11 km/h. 22% chance of drizzle throughout the day. NightPartly cloudy, with a low around 61°F16°C. Light wind from the WNW around 6 mph9 km/h. 15% chance of drizzle throughout the night.
	MondayAug 24	75°F24°C	60°F16°C	0.07 in1.7 mm· 19%	48%	Drizzle	NW 6 mph10 km/h
DayMostly cloudy and warm, with a high of 75°F24°C and morning low of 62°F17°C. Breezy from the NW at 7 to 8 mph11 to 12 km/h. 19% chance of drizzle throughout the day. NightPartly cloudy, with a low around 60°F16°C. Light wind from the NW around 6 mph9 km/h. 16% chance of drizzle overnight.
	TuesdayAug 25	76°F25°C	59°F15°C	0.04 in1 mm· 16%	39%	Drizzle	WNW 6 mph10 km/h
DayPartly cloudy and warm, with a high of 76°F25°C and morning low of 61°F16°C. Breezy from the WNW at 7 mph11 km/h. 16% chance of drizzle in the afternoon. NightPartly cloudy, with a low around 59°F15°C. Light wind from the NW around 6 mph9 km/h.
	WednesdayAug 26	76°F25°C	58°F15°C	0.07 in1.7 mm· 20%	42%	Drizzle	WNW 6 mph10 km/h
DayPartly cloudy and warm, with a high of 76°F25°C and morning low of 61°F16°C. Breezy from the W at 7 mph11 km/h. 20% chance of drizzle throughout the day. NightPartly cloudy, with a low around 58°F15°C. Light wind from the WNW around 6 mph9 km/h. 10% chance of drizzle before dawn.

Nearby Cities

Hamilton7 mi12 km Waterdown10 mi15 km Stoney Creek11 mi18 km Burlington14 mi22 km Brantford15 mi25 km Christopher-Champlain18 mi29 km

About This Forecast

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