Current Conditions

Ancaster, Ontario

75°F24°C

Clear

Wind

W 5 mph8 km/h

Humidity

38%

Cloud Cover

33%

As of Thursday, July 23, 2026 at 1:02 PM EDT

Today's Outlook

Day

Mostly clear and warm, with a high of 77°F25°C and morning low of 58°F14°C. Light wind from the W around 6 mph9 km/h. Dry air.

Night

Mostly clear, with a low around 60°F16°C. Light wind from the WSW around 5 mph8 km/h.

7-Day Forecast

Day	Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
ThursdayJul 23	Clear	High 77°F25°C	Low 58°F14°C	Precip 0 in0 mm—	Cloud 8%	Wind W 5 mph9 km/h	Thursday: Mostly clear and warm, with a high of 77°F25°C and morning low of 58°F14°C. Light wind from the W around 6 mph9 km/h. Dry air. Thursday Night: Mostly clear, with a low around 60°F16°C. Light wind from the WSW around 5 mph8 km/h.
FridayJul 24	Clear	High 80°F27°C	Low 51°F11°C	Precip 0 in0 mm—	Cloud 10%	Wind SE 4 mph6 km/h	Friday: Mostly clear and warm, with a high of 80°F27°C and morning low of 60°F16°C. Light wind from the SSE around 4 mph6 km/h. Friday Night: Mostly clear, with a low around 51°F11°C. Light wind from the ESE around 4 mph6 km/h.
SaturdayJul 25	Drizzle	High 82°F28°C	Low 60°F16°C	Precip 0.01 in0.2 mm13%	Cloud 44%	Wind SSW 5 mph8 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 mph9 to 12 km/h. 13% chance of drizzle. Saturday Night: Partly cloudy, with a low around 60°F16°C. Light wind from the S around 4 mph7 km/h.
SundayJul 26	Showers	High 83°F28°C	Low 64°F18°C	Precip 0.1 in2.5 mm58%	Cloud 37%	Wind WSW 5 mph8 km/h	Sunday: Partly cloudy and warm, with a high of 83°F28°C and morning low of 69°F21°C. Breezy from the WSW at 6 to 7 mph9 to 11 km/h. 58% chance of showers throughout the day. Sunday Night: Partly cloudy, with a low around 64°F18°C. Light wind from the W around 5 mph7 km/h. 40% chance of showers in the evening.
MondayJul 27	Showers	High 82°F28°C	Low 64°F18°C	Precip 0.18 in4.5 mm38%	Cloud 61%	Wind SW 5 mph8 km/h	Monday: Mostly cloudy and warm, with a high of 82°F28°C and morning low of 68°F20°C. Breezy from the SW at 6 to 7 mph9 to 11 km/h. 38% chance of showers throughout the day. Humid. Monday Night: Mostly cloudy, with a low around 64°F18°C. Light wind from the SW around 5 mph8 km/h. 29% chance of showers throughout the night.
TuesdayJul 28	Showers	High 79°F26°C	Low 68°F20°C	Precip 0.37 in9.5 mm55%	Cloud 55%	Wind NW 7 mph11 km/h	Tuesday: Mostly cloudy and warm, with a high of 79°F26°C and morning low of 70°F21°C. Breezy from the NW at 7 to 8 mph12 to 13 km/h. 55% chance of showers throughout the day. Humid. Tuesday Night: Mostly cloudy, with a low around 68°F20°C. Breezy from the NW at 7 mph11 km/h. 48% chance of showers throughout the night.
WednesdayJul 29	Drizzle	High 79°F26°C	Low 62°F17°C	Precip 0.05 in1.2 mm19%	Cloud 28%	Wind NNW 7 mph11 km/h	Wednesday: Partly cloudy and warm, with a high of 79°F26°C and morning low of 65°F18°C. Breezy from the NNW at 7 mph11 km/h. 12% chance of drizzle throughout the day. Wednesday Night: Mostly clear, with a low around 62°F17°C. Breezy from the NNW at 6 to 7 mph10 to 11 km/h. 19% chance of drizzle in the evening.

15-Day Forecast

	Day	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Condition	Wind (mph)
	ThursdayJul 23	77°F25°C	58°F14°C	0 in0 mm· —	8%	Clear	W 5 mph9 km/h
DayMostly clear and warm, with a high of 77°F25°C and morning low of 58°F14°C. Light wind from the W around 6 mph9 km/h. Dry air. NightMostly clear, with a low around 60°F16°C. Light wind from the WSW around 5 mph8 km/h.
	FridayJul 24	80°F27°C	51°F11°C	0 in0 mm· —	10%	Clear	SE 4 mph6 km/h
DayMostly clear and warm, with a high of 80°F27°C and morning low of 60°F16°C. Light wind from the SSE around 4 mph6 km/h. NightMostly clear, with a low around 51°F11°C. Light wind from the ESE around 4 mph6 km/h.
	SaturdayJul 25	82°F28°C	60°F16°C	0.01 in0.2 mm· 13%	44%	Drizzle	SSW 5 mph8 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 mph9 to 12 km/h. 13% chance of drizzle. NightPartly cloudy, with a low around 60°F16°C. Light wind from the S around 4 mph7 km/h.
	SundayJul 26	83°F28°C	64°F18°C	0.1 in2.5 mm· 58%	37%	Showers	WSW 5 mph8 km/h
DayPartly cloudy and warm, with a high of 83°F28°C and morning low of 69°F21°C. Breezy from the WSW at 6 to 7 mph9 to 11 km/h. 58% chance of showers throughout the day. NightPartly cloudy, with a low around 64°F18°C. Light wind from the W around 5 mph7 km/h. 40% chance of showers in the evening.
	MondayJul 27	82°F28°C	64°F18°C	0.18 in4.5 mm· 38%	61%	Showers	SW 5 mph8 km/h
DayMostly cloudy and warm, with a high of 82°F28°C and morning low of 68°F20°C. Breezy from the SW at 6 to 7 mph9 to 11 km/h. 38% chance of showers throughout the day. Humid. NightMostly cloudy, with a low around 64°F18°C. Light wind from the SW around 5 mph8 km/h. 29% chance of showers throughout the night.
	TuesdayJul 28	79°F26°C	68°F20°C	0.37 in9.5 mm· 55%	55%	Showers	NW 7 mph11 km/h
DayMostly cloudy and warm, with a high of 79°F26°C and morning low of 70°F21°C. Breezy from the NW at 7 to 8 mph12 to 13 km/h. 55% chance of showers throughout the day. Humid. NightMostly cloudy, with a low around 68°F20°C. Breezy from the NW at 7 mph11 km/h. 48% chance of showers throughout the night.
	WednesdayJul 29	79°F26°C	62°F17°C	0.05 in1.2 mm· 19%	28%	Drizzle	NNW 7 mph11 km/h
DayPartly cloudy and warm, with a high of 79°F26°C and morning low of 65°F18°C. Breezy from the NNW at 7 mph11 km/h. 12% chance of drizzle throughout the day. NightMostly clear, with a low around 62°F17°C. Breezy from the NNW at 6 to 7 mph10 to 11 km/h. 19% chance of drizzle in the evening.
	ThursdayJul 30	81°F27°C	59°F15°C	0.04 in1 mm· 13%	28%	Drizzle	NW 6 mph9 km/h
DayPartly cloudy and warm, with a high of 81°F27°C and morning low of 64°F18°C. Light wind from the NW around 6 mph9 km/h. 13% chance of drizzle in the afternoon. NightMostly clear, with a low around 59°F15°C. Light wind from the NW around 6 mph9 km/h. 10% chance of drizzle in the evening.
	FridayJul 31	83°F28°C	61°F16°C	0.07 in1.9 mm· 23%	39%	Drizzle	WSW 6 mph10 km/h
DayPartly cloudy and warm, with a high of 83°F28°C and morning low of 66°F19°C. Breezy from the WSW at 7 to 8 mph11 to 13 km/h. 23% chance of drizzle throughout the day. NightPartly cloudy, with a low around 61°F16°C. Light wind from the W around 6 mph9 km/h. 21% chance of drizzle in the evening.
	SaturdayAug 1	82°F28°C	64°F18°C	0.09 in2.3 mm· 26%	42%	Showers	W 6 mph10 km/h
DayPartly cloudy and warm, with a high of 82°F28°C and morning low of 67°F20°C. Breezy from the W at 7 to 8 mph11 to 13 km/h. 26% chance of showers throughout the day. NightPartly cloudy, with a low around 64°F18°C. Light wind from the W around 6 mph9 km/h. 20% chance of drizzle throughout the night.
	SundayAug 2	81°F27°C	63°F17°C	0.08 in2 mm· 21%	42%	Drizzle	W 6 mph10 km/h
DayPartly cloudy and warm, with a high of 81°F27°C and morning low of 66°F19°C. Breezy from the W at 7 to 8 mph11 to 12 km/h. 21% chance of drizzle throughout the day. NightPartly cloudy, with a low around 63°F17°C. Light wind from the W around 6 mph9 km/h. 19% chance of drizzle throughout the night.
	MondayAug 3	82°F28°C	63°F17°C	0.06 in1.4 mm· 11%	45%	Drizzle	WSW 7 mph11 km/h
DayPartly cloudy and warm, with a high of 82°F28°C and morning low of 67°F19°C. Breezy from the WSW at 7 to 9 mph12 to 14 km/h. 11% 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. 10% chance of drizzle throughout the night.
	TuesdayAug 4	82°F28°C	65°F18°C	0.1 in2.5 mm· 23%	54%	Drizzle	WSW 7 mph11 km/h
DayMostly cloudy and warm, with a high of 82°F28°C and morning low of 68°F20°C. Breezy from the WSW at 7 to 9 mph12 to 14 km/h. 23% 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. 16% chance of drizzle throughout the night.
	WednesdayAug 5	81°F27°C	65°F18°C	0.11 in2.8 mm· 24%	51%	Drizzle	WSW 7 mph11 km/h
DayMostly cloudy and warm, with a high of 81°F27°C and morning low of 67°F20°C. Breezy from the WSW at 7 to 8 mph12 to 13 km/h. 24% chance of drizzle throughout the day. NightPartly cloudy, with a low around 65°F18°C. Light wind from the WSW around 6 mph10 km/h. 22% chance of drizzle throughout the night.
	ThursdayAug 6	79°F26°C	63°F17°C	0.12 in3 mm· 20%	50%	Showers	WSW 6 mph10 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 mph11 to 13 km/h. 20% chance of showers throughout the day. NightPartly cloudy, with a low around 63°F17°C. Light wind from the W around 6 mph9 km/h. 15% chance of drizzle 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