Current Conditions

Ancaster, Ontario

60°F16°C

Clear

Wind

WSW 5 mph7 km/h

Humidity

71%

Cloud Cover

As of Thursday, July 23, 2026 at 11:40 PM EDT

Today's Outlook

Night

Mostly clear, with a low around 52°F11°C. Light wind from the ESE around 4 mph6 km/h.

7-Day Forecast

Day	Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
FridayJul 24	Clear	High 80°F27°C	Low 52°F11°C	Precip 0 in0 mm—	Cloud 12%	Wind SE 4 mph6 km/h	Friday: Mostly clear and warm, with a high of 80°F27°C and morning low of 61°F16°C. Light wind from the SE around 4 mph6 km/h. Friday Night: Mostly clear, with a low around 52°F11°C. Light wind from the ESE around 4 mph6 km/h.
SaturdayJul 25	Drizzle	High 82°F28°C	Low 61°F16°C	Precip 0.02 in0.4 mm23%	Cloud 49%	Wind SSW 5 mph7 km/h	Saturday: Mostly cloudy and warm, with a high of 82°F28°C and morning low of 67°F19°C. Breezy from the SSW at 5 to 7 mph8 to 11 km/h. 23% chance of drizzle in the afternoon. Saturday Night: Partly cloudy, with a low around 61°F16°C. Light wind from the SSW around 4 mph7 km/h.
SundayJul 26	Showers	High 84°F29°C	Low 62°F17°C	Precip 0.07 in1.7 mm49%	Cloud 35%	Wind WSW 5 mph8 km/h	Sunday: Partly cloudy and warm, with a high of 84°F29°C and morning low of 68°F20°C. Breezy from the WSW at 6 to 7 mph9 to 12 km/h. 49% chance of showers in the afternoon. Sunday Night: Partly cloudy, with a low around 62°F17°C. Light wind from the WSW around 5 mph7 km/h. 39% chance of drizzle in the evening.
MondayJul 27	Showers	High 81°F27°CFeels 84°F29°C	Low 66°F19°C	Precip 0.28 in7 mm58%	Cloud 63%	Wind WSW 5 mph8 km/h	Monday: Mostly cloudy and warm, with a high of 81°F27°C and morning low of 69°F21°C. Light wind from the WSW around 5 mph9 km/h. 58% chance of showers throughout the day. Humid. Monday Night: Mostly cloudy, with a low around 66°F19°C. Light wind from the WSW around 5 mph7 km/h. 46% chance of showers throughout the night.
TuesdayJul 28	Showers	High 79°F26°C	Low 66°F19°C	Precip 0.32 in8.2 mm51%	Cloud 49%	Wind NNW 6 mph10 km/h	Tuesday: Mostly cloudy and warm, with a high of 79°F26°C and morning low of 69°F20°C. Breezy from the N at 6 to 7 mph10 to 11 km/h. 51% chance of showers throughout the day. Humid. Tuesday Night: Partly cloudy, with a low around 66°F19°C. Breezy from the NNW at 6 to 7 mph9 to 12 km/h. 44% chance of showers throughout the night.
WednesdayJul 29	Drizzle	High 80°F27°C	Low 62°F17°C	Precip 0.05 in1.2 mm12%	Cloud 27%	Wind N 7 mph11 km/h	Wednesday: Partly cloudy and warm, with a high of 80°F27°C and morning low of 66°F19°C. Breezy from the N at 7 mph12 km/h. 12% chance of drizzle throughout the day. Wednesday Night: Mostly clear, with a low around 62°F17°C. Breezy from the N at 7 mph11 km/h. 10% chance of drizzle throughout the night.
ThursdayJul 30	Clear	High 82°F28°C	Low 59°F15°C	Precip 0.02 in0.6 mm8%	Cloud 23%	Wind NW 6 mph9 km/h	Thursday: Partly cloudy and warm, with a high of 82°F28°C and morning low of 64°F18°C. Light wind from the NNW around 6 mph9 km/h. Thursday Night: Mostly clear, with a low around 59°F15°C. Light wind from the NW around 6 mph9 km/h.

15-Day Forecast

	Day	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Condition	Wind (mph)
	FridayJul 24	80°F27°C	52°F11°C	0 in0 mm· —	12%	Clear	SE 4 mph6 km/h
DayMostly clear and warm, with a high of 80°F27°C and morning low of 61°F16°C. Light wind from the SE around 4 mph6 km/h. NightMostly clear, with a low around 52°F11°C. Light wind from the ESE around 4 mph6 km/h.
	SaturdayJul 25	82°F28°C	61°F16°C	0.02 in0.4 mm· 23%	49%	Drizzle	SSW 5 mph7 km/h
DayMostly cloudy and warm, with a high of 82°F28°C and morning low of 67°F19°C. Breezy from the SSW at 5 to 7 mph8 to 11 km/h. 23% chance of drizzle in the afternoon. NightPartly cloudy, with a low around 61°F16°C. Light wind from the SSW around 4 mph7 km/h.
	SundayJul 26	84°F29°C	62°F17°C	0.07 in1.7 mm· 49%	35%	Showers	WSW 5 mph8 km/h
DayPartly cloudy and warm, with a high of 84°F29°C and morning low of 68°F20°C. Breezy from the WSW at 6 to 7 mph9 to 12 km/h. 49% chance of showers in the afternoon. NightPartly cloudy, with a low around 62°F17°C. Light wind from the WSW around 5 mph7 km/h. 39% chance of drizzle in the evening.
	MondayJul 27	81°F27°C Feels 84°F29°C	66°F19°C	0.28 in7 mm· 58%	63%	Showers	WSW 5 mph8 km/h
DayMostly cloudy and warm, with a high of 81°F27°C and morning low of 69°F21°C. Light wind from the WSW around 5 mph9 km/h. 58% chance of showers throughout the day. Humid. NightMostly cloudy, with a low around 66°F19°C. Light wind from the WSW around 5 mph7 km/h. 46% chance of showers throughout the night.
	TuesdayJul 28	79°F26°C	66°F19°C	0.32 in8.2 mm· 51%	49%	Showers	NNW 6 mph10 km/h
DayMostly cloudy and warm, with a high of 79°F26°C and morning low of 69°F20°C. Breezy from the N at 6 to 7 mph10 to 11 km/h. 51% chance of showers throughout the day. Humid. NightPartly cloudy, with a low around 66°F19°C. Breezy from the NNW at 6 to 7 mph9 to 12 km/h. 44% chance of showers throughout the night.
	WednesdayJul 29	80°F27°C	62°F17°C	0.05 in1.2 mm· 12%	27%	Drizzle	N 7 mph11 km/h
DayPartly cloudy and warm, with a high of 80°F27°C and morning low of 66°F19°C. Breezy from the N at 7 mph12 km/h. 12% chance of drizzle throughout the day. NightMostly clear, with a low around 62°F17°C. Breezy from the N at 7 mph11 km/h. 10% chance of drizzle throughout the night.
	ThursdayJul 30	82°F28°C	59°F15°C	0.02 in0.6 mm· 8%	23%	Clear	NW 6 mph9 km/h
DayPartly cloudy and warm, with a high of 82°F28°C and morning low of 64°F18°C. Light wind from the NNW around 6 mph9 km/h. NightMostly clear, with a low around 59°F15°C. Light wind from the NW around 6 mph9 km/h.
	FridayJul 31	83°F29°C	62°F17°C	0.07 in1.7 mm· 21%	44%	Drizzle	WSW 6 mph10 km/h
DayPartly cloudy and warm, with a high of 83°F29°C and morning low of 67°F19°C. Breezy from the WSW at 7 to 8 mph11 to 13 km/h. 21% chance of drizzle throughout the day. NightPartly cloudy, with a low around 62°F17°C. Light wind from the WSW around 6 mph9 km/h. 12% chance of drizzle throughout the night.
	SaturdayAug 1	82°F28°C	65°F19°C	0.13 in3.2 mm· 33%	47%	Showers	WSW 6 mph10 km/h
DayMostly cloudy and warm, with a high of 82°F28°C and morning low of 69°F20°C. Breezy from the WSW at 7 mph11 km/h. 33% chance of showers throughout the day. NightPartly cloudy, with a low around 65°F19°C. Light wind from the W around 6 mph9 km/h. 21% chance of drizzle throughout the night.
	SundayAug 2	82°F28°C	64°F18°C	0.08 in2.1 mm· 21%	47%	Drizzle	W 6 mph9 km/h
DayMostly cloudy and warm, with a high of 82°F28°C and morning low of 67°F19°C. Breezy from the W at 6 to 7 mph10 to 12 km/h. 21% chance of drizzle throughout the day. NightPartly cloudy, with a low around 64°F18°C. Light wind from the W around 5 mph9 km/h. 18% chance of drizzle throughout the night.
	MondayAug 3	81°F27°C	63°F17°C	0.06 in1.5 mm· 16%	46%	Drizzle	WSW 6 mph10 km/h
DayMostly cloudy and warm, with a high of 81°F27°C and morning low of 67°F19°C. Breezy from the WSW at 7 to 8 mph10 to 12 km/h. 16% chance of drizzle throughout the day. NightPartly cloudy, with a low around 63°F17°C. Light wind from the WSW around 6 mph9 km/h. 15% chance of drizzle throughout the night.
	TuesdayAug 4	81°F27°C	65°F18°C	0.14 in3.5 mm· 22%	56%	Showers	SW 7 mph11 km/h
DayMostly cloudy and warm, with a high of 81°F27°C and morning low of 68°F20°C. Breezy from the SW at 8 to 9 mph12 to 15 km/h. 22% chance of showers throughout the day. NightMostly cloudy, with a low around 65°F18°C. Light wind from the SW around 6 mph10 km/h. 22% chance of drizzle throughout the night.
	WednesdayAug 5	80°F26°C	65°F18°C	0.11 in2.8 mm· 25%	55%	Showers	WSW 7 mph11 km/h
DayMostly cloudy and warm, with a high of 80°F26°C and morning low of 67°F19°C. Breezy from the WSW at 8 to 9 mph12 to 14 km/h. 25% chance of drizzle throughout the day. NightMostly cloudy, with a low around 65°F18°C. Light wind from the WSW around 6 mph10 km/h. 20% chance of showers throughout the night.
	ThursdayAug 6	79°F26°C	63°F17°C	0.09 in2.2 mm· 25%	47%	Drizzle	WSW 7 mph11 km/h
DayMostly cloudy and warm, with a high of 79°F26°C and morning low of 66°F19°C. Breezy from the WSW at 7 to 8 mph12 to 13 km/h. 25% chance of drizzle throughout the day. NightPartly cloudy, with a low around 63°F17°C. Light wind from the WSW around 6 mph9 km/h. 17% chance of drizzle throughout the night.
	FridayAug 7	78°F26°C	62°F16°C	0.11 in2.8 mm· 29%	49%	Showers	WSW 6 mph10 km/h
DayMostly cloudy and warm, with a high of 78°F26°C and morning low of 65°F18°C. Breezy from the WSW at 7 to 8 mph11 to 13 km/h. 29% chance of showers throughout the day. NightPartly cloudy, with a low around 62°F16°C. Light wind from the W around 6 mph9 km/h. 23% chance of showers throughout the night.

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

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.

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