Current Conditions

Ancaster, Ontario

75°F24°C

Cloudy

Wind

SE 5 mph8 km/h

Humidity

55%

Cloud Cover

99%

As of Tuesday, September 8, 2026 at 5:10 PM EDT

Today's Outlook

Day

Overcast and warm, with a high of 75°F24°C. Light wind from the SE around 5 mph7 km/h.

Night

Overcast, with a low around 65°F19°C. Light wind from the SE around 4 mph7 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Cloudy	High 75°F24°C	Low 65°F19°C	Precip 0 in0 mm—	Cloud 98%	Wind SE 4 mph7 km/h	Tuesday: Overcast and warm, with a high of 75°F24°C. Light wind from the SE around 5 mph7 km/h. Tuesday Night: Overcast, with a low around 65°F19°C. Light wind from the SE around 4 mph7 km/h.
Light Rain	High 76°F24°C	Low 67°F19°C	Precip 0.33 in8.4 mm93%	Cloud 89%	Wind SW 9 mph14 km/h	Wednesday: Overcast and warm, with a high of 76°F24°C and morning low of 70°F21°C. Breezy from the SW at 10 to 12 mph16 to 19 km/h. 93% chance of light rain throughout the day. Humid. Wednesday Night: Overcast, with a low around 67°F19°C. Breezy from the WSW at 8 to 11 mph13 to 17 km/h. 80% chance of light rain throughout the night.
Partly Cloudy	High 75°F24°C	Low 58°F15°C	Precip 0 in0 mm—	Cloud 64%	Wind WNW 7 mph12 km/h	Thursday: Overcast and warm, with a high of 75°F24°C and morning low of 64°F18°C. Breezy from the WNW at 8 to 10 mph13 to 16 km/h. Thursday Night: Partly cloudy, with a low around 58°F15°C. Breezy from the WNW at 7 to 9 mph11 to 15 km/h.
Clear	High 74°F23°C	Low 50°F10°C	Precip 0 in0 mm—	Cloud 14%	Wind W 4 mph7 km/h	Friday: Mostly clear and warm, with a high of 74°F23°C and morning low of 52°F11°C. Light wind from the WNW around 4 mph6 km/h. Friday Night: Mostly clear, with a low around 50°F10°C. Light wind from the SW around 5 mph7 km/h.
Drizzle	High 78°F26°C	Low 55°F13°C	Precip 0.03 in0.8 mm15%	Cloud 52%	Wind S 6 mph9 km/h	Saturday: Partly cloudy and warm, with a high of 78°F26°C and morning low of 57°F14°C. Breezy from the S at 6 to 8 mph10 to 13 km/h. 15% chance of drizzle in the afternoon. Saturday Night: Mostly cloudy, with a low around 55°F13°C. Breezy from the S at 5 to 7 mph8 to 11 km/h. 11% chance of drizzle in the evening.
Showers	High 76°F25°C	Low 60°F16°C	Precip 0.08 in2 mm25%	Cloud 49%	Wind WNW 8 mph12 km/h	Sunday: Mostly cloudy and warm, with a high of 76°F25°C and morning low of 66°F19°C. Breezy from the WNW at 8 to 11 mph13 to 17 km/h. 25% chance of drizzle throughout the day. Sunday Night: Partly cloudy, with a low around 60°F16°C. Breezy from the W at 7 to 8 mph12 to 13 km/h. 19% chance of showers overnight.
Partly Cloudy	High 69°F21°C	Low 54°F12°C	Precip 0.04 in0.9 mm7%	Cloud 53%	Wind NNW 6 mph10 km/h	Monday: Mostly cloudy and warm, with a high of 69°F21°C and morning low of 54°F12°C. Light wind from the NNW around 6 mph10 km/h. Monday Night: Partly cloudy, with a low around 54°F12°C. Light wind from the NNW around 6 mph10 km/h.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	TuesdaySep 8	75°F24°C	65°F19°C	0 in0 mm· —	98%	Cloudy	SE 4 mph7 km/h
DayOvercast and warm, with a high of 75°F24°C. Light wind from the SE around 5 mph7 km/h. NightOvercast, with a low around 65°F19°C. Light wind from the SE around 4 mph7 km/h.
	WednesdaySep 9	76°F24°C	67°F19°C	0.33 in8.4 mm· 93%	89%	Light Rain	SW 9 mph14 km/h
DayOvercast and warm, with a high of 76°F24°C and morning low of 70°F21°C. Breezy from the SW at 10 to 12 mph16 to 19 km/h. 93% chance of light rain throughout the day. Humid. NightOvercast, with a low around 67°F19°C. Breezy from the WSW at 8 to 11 mph13 to 17 km/h. 80% chance of light rain throughout the night.
	ThursdaySep 10	75°F24°C	58°F15°C	0 in0 mm· —	64%	Partly Cloudy	WNW 7 mph12 km/h
DayOvercast and warm, with a high of 75°F24°C and morning low of 64°F18°C. Breezy from the WNW at 8 to 10 mph13 to 16 km/h. NightPartly cloudy, with a low around 58°F15°C. Breezy from the WNW at 7 to 9 mph11 to 15 km/h.
	FridaySep 11	74°F23°C	50°F10°C	0 in0 mm· —	14%	Clear	W 4 mph7 km/h
DayMostly clear and warm, with a high of 74°F23°C and morning low of 52°F11°C. Light wind from the WNW around 4 mph6 km/h. NightMostly clear, with a low around 50°F10°C. Light wind from the SW around 5 mph7 km/h.
	SaturdaySep 12	78°F26°C	55°F13°C	0.03 in0.8 mm· 15%	52%	Drizzle	S 6 mph9 km/h
DayPartly cloudy and warm, with a high of 78°F26°C and morning low of 57°F14°C. Breezy from the S at 6 to 8 mph10 to 13 km/h. 15% chance of drizzle in the afternoon. NightMostly cloudy, with a low around 55°F13°C. Breezy from the S at 5 to 7 mph8 to 11 km/h. 11% chance of drizzle in the evening.
	SundaySep 13	76°F25°C	60°F16°C	0.08 in2 mm· 25%	49%	Showers	WNW 8 mph12 km/h
DayMostly cloudy and warm, with a high of 76°F25°C and morning low of 66°F19°C. Breezy from the WNW at 8 to 11 mph13 to 17 km/h. 25% chance of drizzle throughout the day. NightPartly cloudy, with a low around 60°F16°C. Breezy from the W at 7 to 8 mph12 to 13 km/h. 19% chance of showers overnight.
	MondaySep 14	69°F21°C	54°F12°C	0.04 in0.9 mm· 7%	53%	Partly Cloudy	NNW 6 mph10 km/h
DayMostly cloudy and warm, with a high of 69°F21°C and morning low of 54°F12°C. Light wind from the NNW around 6 mph10 km/h. NightPartly cloudy, with a low around 54°F12°C. Light wind from the NNW around 6 mph10 km/h.
	TuesdaySep 15	78°F25°C	58°F14°C	0.12 in3 mm· 30%	66%	Showers	SSW 9 mph15 km/h
DayMostly cloudy and warm, with a high of 78°F25°C and morning low of 62°F17°C. Breezy from the SSW at 11 to 12 mph17 to 20 km/h. 18% chance of drizzle throughout the day. NightMostly cloudy, with a low around 58°F14°C. Breezy from the SSW at 8 to 9 mph12 to 14 km/h. 30% chance of showers throughout the night.
	WednesdaySep 16	74°F23°C	62°F17°C	0.13 in3.4 mm· 29%	64%	Showers	W 7 mph11 km/h
DayMostly cloudy and warm, with a high of 74°F23°C and morning low of 62°F17°C. Breezy from the W at 7 mph11 km/h. 25% chance of showers throughout the day. NightMostly cloudy, with a low around 62°F17°C. Breezy from the W at 6 to 8 mph10 to 12 km/h. 29% chance of showers throughout the night.
	ThursdaySep 17	74°F23°C	59°F15°C	0.11 in2.8 mm· 21%	64%	Showers	S 6 mph10 km/h
DayMostly cloudy and warm, with a high of 74°F23°C and morning low of 60°F16°C. Breezy from the S at 7 mph11 km/h. 21% chance of drizzle throughout the day. NightMostly cloudy, with a low around 59°F15°C. Breezy from the E at 6 to 7 mph10 to 11 km/h. 21% chance of showers throughout the night.
	FridaySep 18	72°F22°C	61°F16°C	0.18 in4.5 mm· 26%	59%	Showers	W 8 mph13 km/h
DayMostly cloudy and warm, with a high of 72°F22°C and morning low of 62°F17°C. Breezy from the W at 8 to 9 mph14 to 15 km/h. 26% chance of showers throughout the day. NightMostly cloudy, with a low around 61°F16°C. Breezy from the W at 8 mph12 km/h. 22% chance of showers throughout the night.
	SaturdaySep 19	68°F20°C	56°F13°C	0.11 in2.7 mm· 18%	56%	Showers	WNW 8 mph13 km/h
DayMostly cloudy and mild, with a high of 68°F20°C and morning low of 56°F13°C. Breezy from the WNW at 8 to 9 mph13 to 15 km/h. 18% chance of showers throughout the day. NightMostly cloudy, with a low around 56°F14°C. Breezy from the WNW at 7 to 8 mph12 to 12 km/h. 18% chance of drizzle throughout the night.
	SundaySep 20	66°F19°C	53°F11°C	0.11 in2.8 mm· 21%	54%	Drizzle	WNW 7 mph11 km/h
DayMostly cloudy and mild, with a high of 66°F19°C and morning low of 53°F12°C. Breezy from the WNW at 8 mph12 km/h. 21% chance of drizzle throughout the day. NightMostly cloudy, with a low around 53°F11°C. Breezy from the NW at 7 mph11 km/h. 18% chance of drizzle throughout the night.
	MondaySep 21	64°F18°C	51°F11°C	0.11 in2.8 mm· 19%	60%	Showers	NNW 7 mph12 km/h
DayMostly cloudy and mild, with a high of 64°F18°C and morning low of 51°F11°C. Breezy from the NW at 8 mph12 km/h. 15% chance of showers throughout the day. Dry air. NightMostly cloudy, with a low around 51°F11°C. Breezy from the NNW at 7 mph11 km/h. 19% chance of drizzle throughout the night.
	TuesdaySep 22	64°F18°C	49°F10°C	0.09 in2.2 mm· 14%	55%	Drizzle	NNW 7 mph11 km/h
DayMostly cloudy and mild, with a high of 64°F18°C and morning low of 50°F10°C. Breezy from the NNW at 7 to 8 mph12 to 13 km/h. 14% chance of drizzle throughout the day. Dry air. NightMostly cloudy, with a low around 49°F10°C. Light wind from the N around 6 mph10 km/h. 13% 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

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